Sub-National Tourism: A spatial classification of areas in England and Wales to show the importance of tourism, at county and unitary authority level, 2011 to 2013

Estimates of the economic value of tourism within UK regions, sub-regions and local areas.

Hwn yw'r datganiad diweddaraf. Gweld datganiadau blaenorol

Cyswllt:
Email Anna Bodey and Sean White

Dyddiad y datganiad:
1 December 2015

Cyhoeddiad nesaf:
To be announced

1. Main points

  • Analysis on variables in the Atlas of Tourism produced 5 distinct groupings of counties and unitary authorities based upon similarities in their tourism characteristics

  • Two groups, comprising of 31 geographical areas, have been classified as areas where tourism visits for holiday purposes are important, referred to as ‘holiday hotspots’

  • Key characteristics of ‘holiday hotspots’ are: higher proportions of jobs in accommodation for visitors, higher percentages of main jobs in tourism and tourism enterprises and higher percentages of inbound trips for a holiday purpose

Nôl i'r tabl cynnwys

2. Introduction

The analysis presented here has been performed to explore the data contained in the Atlas of Tourism in further detail. The purpose of this analysis is to assess the possibility of grouping areas (county and unitary authority level) that have similar tourism characteristics to determine if it is feasible to construct a spatial classification based on these characteristics. The ultimate aim is to test a methodology (using data from the Atlas of Tourism) which aims to provide a useful tool for policy makers in identifying areas that share similar characteristics in terms of tourism.

It is not being suggested that the grouping of areas represents a measure of tourism importance, for example it is not being said that tourism is more important in one cluster and less in another. The analysis simply allows for the differing tourism characteristics that areas have, for example a focus on holiday trips with high levels of nights per trip, or a propensity towards shorter breaks, or business tourism. The aim is therefore to highlight areas that share similar characteristics.

There are 411 variables in the Atlas of Tourism and 171 out of 411 were selected for further analysis based on certain criteria; please see methodology for details on the criteria used. The only additional variable used in the analysis is the Rural Urban Classification (RUC) for the geographical locations; please see methodology for more details. The 171 Atlas of Tourism variables are divided into four themes: employment and industry; domestic day visits; domestic overnight tourism; and inbound tourism. The RUCs are included in each theme.

The analysis followed a number of clear stages:

  • A cluster analysis has been performed for each theme in the Atlas of Tourism,

  • A factor analysis was then performed on all the variables across the 4 themes to reduce the number of variables into 4 factors,

  • A final cluster analysis was performed on the variables contained in the 4 factors. The final cluster analysis provides us with fivefold classification of the counties and unitary authorities of England and Wales, based on the characteristics of tourism within each area.

This article first presents the final cluster analysis in some detail as it represents the main output from the analysis. The article also includes the cluster analysis for each of the 4 themes and the factor analysis procedure.

The Atlas of Tourism

The Atlas of Tourism is an interactive tool that has been created to provide official statistics to tourism officials, to help them understand the impact of tourism within their local area (at county and unitary authority level), in England and Wales. There are tourism statistics and contextual data for all of the 174 different counties and unitary authorities available within the Atlas.

The tool offers the ability to view the data in chart, map and table form. It enables comparison between different geographical locations on a range of different variables that can be specified by the user. The Tourism Atlas was released on 16 April 2015 and can be accessed on the Neighbourhood Statistics website.

Nôl i'r tabl cynnwys

3. A Cluster Analysis of the variables included in the Tourism Atlas

This section describes the main outcome of this analysis: a grouping of the counties and unitary authorities in England and Wales into 5 clusters, based on similar tourism characteristics. The clusters are shown in the map and the summary characteristics of each cluster are shown in the table below.

Cluster 1 is an unusually small cluster. Exploring the data further reveals that they have the exactly the same value observations for variables relating to inbound tourism (IPS survey data, probably as a result of low sample sizes at county or unitary authority level). They are all located around the River Humber and border each other which could also explain or corroborate the similarities in tourism characteristics.

The areas in cluster 2 have a higher percentage of nights spent and expenditure on studying by all inbound visitors and from further research it can be seen that a lot of the locations have higher education institutes (that is universities), suggesting that studying is of value in attracting international visitors to these areas. The study purpose of trip qualifies as tourism in a definitional sense, although it is not normally closely related with ‘tourism’.

Cluster 3 contains locations with characteristics which suggest that tourism is of importance, shown in the above average percentages of domestic trips length 4 to 7 nights for holiday and business purposes, higher percentage of day visits spent exploring an area and higher percentage of workers employed in the tourism industry in for some age categories.

The locations in cluster 4, Greater London and York, are both recognised tourism destinations and it is evident from the characteristics relating to tourism workers and enterprises (see above table) that tourism is important to the economy in York and Greater London. Characteristics of urban tourism are also evident by the higher percentage of holiday’s length 1 to 3 nights (suggesting tourists prefer city breaks to these locations rather than longer stays), a much higher expenditure on holidays by inbound tourists and higher expenditure per trips ratio by domestic tourists. There is also an above average percentage of nights stayed for a holiday purpose by all inbound visitors (American – North and South, European, Asian, African, Australasian). Therefore, it can be seen that tourism with a holiday purpose is both popular and highly important in York and Greater London, so they are labelled as ‘holiday hotspots’.

Most locations within cluster 5 are rural and/or coastal, the more traditional holiday destinations in England and Wales. The importance of tourism to the economy in these locations is evident through the higher percentage of workers age 16-19 and 25-64 within the tourism industries and the higher than average percentage of tourism enterprises in these areas.

Two locations, Hartlepool and Oldham, do not conform to the patterns of other cluster 5 locations. From further exploration of the data for these locations, it is clear that there are low sample sizes in these areas across the different surveys and results are skewed as a result. This is a limitation in using disaggregated survey data within the analysis. There appears to be a lower percentage of nights stayed and expenditure on holidays in comparison with the rest of cluster five, both are more urban, there are a lower percentage of jobs in accommodation for visitors and a higher percentage of jobs in food and beverage serving activities. These are all suggestive that tourism is not as prominent for Hartlepool and Oldham as the clustering would indicate.

Within cluster 5 there is a higher percentage of nights stayed for holiday and VFR purposes (compared to business, studying or ‘other’ purposes), which is mostly consistent for inbound visitors from all continents. Also, there is a higher than average expenditure per trip, which in rural areas would imply longer stays (on holidays, for example) and a higher percentage of jobs in accommodation for visitors. There are also higher percentages of day visits spent exploring an area or participating in an outdoor leisure activity, also both tourist and holiday activities. Similarly to cluster 4, tourism with a holiday purpose is both prevalent and of high importance in these locations, so the areas in cluster 5 are also labelled as ‘holiday hotspots’.

Nôl i'r tabl cynnwys

4. A focus on Cluster 4 and 5 – ‘holiday hotspots’

The final cluster analysis has highlighted 31 locations in England and Wales which are classified as ‘holiday hotspots’. In this section the characteristics of these locations (present in clusters 4 and 5) are explored in further detail.

Figure 1 shows the percentage of first and second jobs in each location that are in the following tourism characteristic industries: accommodation for visitors; food and beverage serving activities; passenger transport, travel agencies, vehicle hire etc; and cultural, sports, recreational and conference activities. The England/Wales averages are shown in Table 2, along with the averages for ‘holiday hotspots’. Generally, areas within cluster 4 or 5 have an above percentage of jobs within the accommodation for visitors sector. Pembrokeshire has the highest percentage of jobs in accommodation for visitors (36.4%) and Brighton and Hove has the lowest (6.3%). There are, however, 4 areas with below average percentage jobs in accommodation for visitors: Cardiff, Greater London, Oldham and Brighton and Hove.

Figure 2 shows the percentage of enterprises in tourism and the percentage of main jobs in tourism industries. Holiday destinations might be expected to have higher percentages of both of these. The England/Wales averages are shown in Table 3, along with the averages for areas included in cluster 4 and 5. As shown, Gwynedd has the highest percentage of main jobs in tourism (14.9%) followed by the Isle of Anglesey (14.0%) with Oldham having the least (7.3%). Torbay has the highest percentage of tourism enterprises (16.2%) followed by the Isle of Wight (15.5%) with Poole the lowest of these areas (8.0%).

Figure 3 shows that there is variation in the overall ‘holiday destination’ focus of these areas, and the type of tourism profile can differ across the areas for particular variables. This is evident in the length of holiday taken by domestic overnight tourists. For example, Cardiff, Greater London and York have the highest percentage of stays length 1-3 nights (89.4%, 86.7%, and 84.2% respectively) which is typical of tourism in urban areas, largely made up of weekend trips or city breaks. On the other hand, the Isle of Wight, Cornwall and Devon have the highest percentage of stays length 4-7 nights (52.8%, 51.6% and 48.0% respectively) and Oldham, Cornwall and Ceredigion have the highest percentage of stays length 8+ nights (33.3%, 16.4% and 13.2% respectively). The England/Wales averages are shown in the below table, along with the averages for areas classified as ‘holiday hotspots’. Comparing these averages, it can be seen that in these areas the % length of stays of 1-3 nights are lower, suggesting longer stays are characteristic of holiday destinations.

Figure 4 shows the percentage of nights stayed by inbound tourists by purpose: holiday, business, studying, VFR and ‘other’. The England/Wales averages are shown in the below table, along with the averages for areas classified as ‘holiday hotspots’. The table below shows that the average of percentage nights stayed on holidays is above average in these locations (as would be expected in holiday destinations) and despite the average stays for VFR purpose is higher in these areas, it is below the England/Wales average. Cornwall has the highest percentage of visits for a holiday (61.4%) followed by Pembrokeshire (57.9%) and the Isle of Anglesey (53.3%). There are six areas within clusters 4 and 5 that are below average in the percentage of nights stayed on holiday: Oldham, 17.4%; Suffolk, 18.3%; Wiltshire, 18.7%; Norfolk, 19.6%; Hartlepool, 19.8%; and Northumberland, 20.9%.

Figure 5 shows the average expenditure per day visit for the locations in clusters 4 and 5. Cardiff has the highest spend per day, with £50.08, and the Isle of Anglesey has the second highest, £48.92. The lowest average spend per day visit is Hartlepool, £16.96, then Oldham, £18.41. The average domestic day visit spend for Greater London is £38.04, which is £12.04 lower than Cardiff, but this is due to an average of all London Boroughs being included in the analysis and there will be large variations between London boroughs on this variable. Furthermore, it can be seen that 17 locations within clusters 4 and 5 fall below the average spend per day visit for England and Wales, which suggests this variable has some variation across holiday destinations.

Nôl i'r tabl cynnwys

5. Cluster Analysis of the Themes of data covered in the Tourism Atlas

A ‘k-means cluster analysis’ was performed on the four themes from the Atlas of Tourism across the counties and unitary authorities of England and Wales. This divides the geographical locations into groups based on similarities between the variables. The Isles of Scilly were excluded from the cluster analysis due to a significant number of missing or suppressed values. For further technical information see the methodology section of this article.

To allow for an overall picture of tourism in London, the observations for each borough were aggregated and a value for Greater London produced for each variable. This avoided the problem of a high level of variability in the data for the London boroughs which had an adverse impact on the cluster analysis.

The Rural Urban Classification (RUC) of each location was included as a variable in the cluster analysis of each theme. The RUC of the counties and unitary authorities of England are based on 2011 census data and are awaiting publication. The RUC of the counties and unitary authorities of Wales were aggregated from the RUC of wards, from ONS for 2011.

Theme 1: Employment and Industry

Theme 1 contains 39 variables that are taken from the Employment and Industry themes of the Atlas of Tourism using data from the Annual Population Survey and the Inter-Departmental Business Register. Using the k-means cluster analysis, the geographical areas are grouped into four clusters.

The variables in this theme are concerned with the characteristics of tourism workers (age, qualification level) and the jobs in the industry (sector breakdown, number of main and second jobs available in tourism, percentage of tourism enterprises).

Theme 2: Domestic Day Visits

Domestic day visits are visits by a UK resident to another UK location outside of their usual environment for a minimum of 3 hours, who returns to their usual environment (residence or workplace) the same day.

Theme 2 contains 42 variables from the Atlas of Tourism, originating from the Great Britain Day Visits Survey (averaged data from 2011-2013). Using the k-means cluster analysis, the geographical areas are grouped into five clusters.

The variables included in this theme are the ratio of expenditure to number of day visits, the % of day visits and expenditure of specified length (3-3.59, 4-4.59, 5-5.59 and 6+ hours), breakdown of the number of visits and expenditure by 16 specific purposes.

Theme 3: Domestic Overnight Tourism

Domestic overnight tourism constitutes trips by UK residents to stay in a UK location for one or more nights. Data from the Great Britain Tourism Survey included in the Tourism Atlas is used in this theme (averaged data from 2011-2013).

Theme 3 contains 27 variables. Using the k-means cluster analysis, the geographical areas are grouped into five clusters.

The variables included in this theme are the ratio of the total number of nights to the total number of trips (giving the average number of nights per trip), the expenditure to total number of trips ratio (giving the average expenditure per trip), percentage of all trips and nights attributed to trips length 1-3, 4-7 and 8+ nights, percentage of trips and nights attributed to trips for the following three purposes: holiday, business and VFR of length 1-3, 4-7 and 8+ nights.

Theme 4: Inbound Tourism

Inbound tourism constitutes trips by overseas visitors who come to England or Wales for one or more nights. Data from the International Passenger Survey that is included in the Atlas of Tourism is used in this theme (averaged data from 2011-2013).

Theme 4 contains 59 variables. Using the k-means cluster analysis, the geographical areas are grouped into four clusters.

The variables included in this theme are the breakdown of percentage of visitors and expenditure from the Americas (Am), Europe (Eu), Australasia (Au) and visitors from ‘Other’ countries (i.e. Asia and Africa), breakdown of visits by purpose (holiday, business, studying, visiting friends and relatives and other), percentage of nights stayed and expenditure by Am, Eu, Au and ‘Other’ visitors for each purpose listed above.

Nôl i'r tabl cynnwys

6. Factor Analysis to reduce the number of variables

In order to construct an overall cluster analysis of all of the tourism variables included in the Atlas of Tourism, it was first necessary to try and reduce the number of variables that were fed into the final analysis. This section describes the methodology for achieving this.

From the themes included in the Atlas of Tourism, there are a total of 172 observations per location. Due to the large number of variables and as many of the variables are inter-related, the analysis of the results was highly complex. A factor analysis was, therefore, performed on all variables across the themes with the aim of reducing the number of variables, and then grouping these variables into four factors with the aim of reducing the complexity of the analysis.

In order to assess to relationship between a location and a factor (i.e. whether characteristics of that factor are present in the location), a factor score measure was introduced. An individual factor score was calculated for each county and unitary authority, for each of the four factors. The higher (or more positive) the factor score, the stronger the relationship between the area and characteristics held by the factor. A negative factor score means that the location doesn’t share many (if any) characteristics associated with the factor. For further information on how the factor score was calculated, please refer to the methodology section.

Factor one contains the following characteristics (categorised by theme):

Employment and industry:

  • lower % of jobs in food and beverage serving activities

  • higher % of workers age 25 to 64 are working in the tourism industry (rather than in the economy)

  • lower % of tourism workers are aged 16 to 24

  • higher % of tourism workers are aged 30 to 39

  • higher % of workers have degree or higher education level or equivalent qualifications

  • lower % of workers have GCE or GCSE level or equivalent qualifications

  • higher % of main tourism jobs in economy

  • higher % of tourism enterprises

Domestic day visits:

  • higher % of expenditure on day visits of length 3 to 3.59 hours

  • lower % of expenditure on day visits of length 5 to 5.59 hours

Domestic overnight trips:

  • higher ratio of expenditure (£mil) to number of all overnight trips (thousands)

  • higher % of trips of 8+ nights

Inbound trips:

  • lower % of expenditure on inbound visits by Au people

  • higher % of nights stayed and expenditure on holidays by inbound tourists

  • lower % of nights stayed and expenditure on VFR visits by inbound tourists

  • higher % of nights stayed and expenditure on holidays by Am, Eu, Au and 'Other' visitors

  • lower % of nights stayed and expenditure on VFR by Am and Eu visitors

  • lower % of expenditure on VFR by Au and 'Other' visitors

This map shows that Pembrokeshire, Isle of Anglesey, Gwynedd, Cornwall, Torbay, Cumbria and Greater London, for example, all strongly share the characteristics displayed in factor one, whereas locations such as Northamptonshire and the Welsh Valleys (amongst other areas) do not share the characteristics of factor one.

Factor two contains the following characteristics (categorised by theme):

Employment and industry:

  • higher % of jobs in accommodation for visitors

  • lower % of jobs in passenger transport, travel agencies, vehicle hire etc.

  • higher % of 16 to 19 workers in the tourism industry

  • higher % of 16 to 19 year olds working in tourism as main job

  • lower % of 25 to 34 year olds working in tourism as main job

  • higher % of 60+ working in tourism as main job

  • higher % of main jobs in tourism

  • lower RUC (more rural)

Domestic day visits:

  • higher % of day visits for outdoor leisure activities and exploring an area

Domestic overnight trips:

  • higher number of nights to the number of trips - for all overnight trips - ratio

  • lower % of trips 1 to 3 nights (also by nights attributed)

  • higher % of trips 4 to 7 nights (also by nights attributed)

  • lower % of holiday, business (both by nights attributed), and VFR trips 1-3 nights

  • higher % of holiday and VFR trips length 4-7 nights (also by nights attributed) and business trips 4-7

Inbound trips:

  • higher % of nights stayed and expenditure by Eu inbound visitors

  • lower % of nights stayed and expenditure by inbound visitors from 'Other' countries

  • lower % of nights stayed and expenditure on business trips by inbound tourists

  • lower % of nights stayed and expenditure on visits for a business purpose by Am, Eu and Au inbound visitors

  • lower % of expenditure on visits for a business purpose by inbound visitors from 'Other' countries

This map shows that Pembrokeshire, Gwynedd, Cornwall, Torbay and Devon, for example, strongly share the characteristics of factor two whereas locations such as Greater London, Northamptonshire, and parts of the Midlands and North do not share these characteristics at all.

Factor three contains the following characteristics from theme 4 (inbound tourism):

  • lower % of nights stayed by Am visitors

  • higher % of nights stayed and expenditure by inbound visitors from 'Other' countries

  • higher % of nights stayed and expenditure on studying by inbound tourists

  • lower % of nights stayed on VFR visits by inbound tourists

  • higher % of expenditure on studying by Am visitors

  • higher % of nights stayed on studying by Eu, Au and 'Other' visitors

  • higher % of expenditure on studying by Eu, Au and 'Other' visitors

  • lower % of nights stayed for VFR visits by Au visitors

  • lower % of nights stayed and expenditure for holidays by Au visitors

This map shows that Dorset, Cambridgeshire, Peterborough, Doncaster, Rotherham and Sheffield, for example, all strongly share the characteristics of factor three, whereas locations such as Pembrokeshire, Cumbria, Cornwall and East Riding of Yorkshire do not share the characteristics of factor three.

Factor four contains the following characteristics from theme 4 (inbound tourism):

  • lower % of nights stayed for business by inbound tourists

  • higher % of nights stayed and expenditure for 'other' purposes

  • higher % of nights stayed for 'other' purposes by Eu Inbound visitors

  • lower % of expenditure for business purposes from visitors from 'Other' countries

  • higher % of nights stayed and expenditure by 'Other' visitors on 'other' purposes

(329 Kb)

This map shows that areas on the England-Wales border, Devon, Plymouth, Wiltshire, Swindon and some part of North England strongly share the characteristics of factor four, whereas locations including some areas of the Midlands and South, such as Southampton and Staffordshire, do not share characteristics of factor four.

These variables contained in these four factors were then used to produce the final cluster analysis of locations highlighted in section two of this report.

Nôl i'r tabl cynnwys

7 .Methodology – Background Information

Selection of variables for analysis

The Tourism Atlas contains 411 variables and analysis was performed on 172 variables (171 from the Atlas of Tourism, plus the Rural Urban Classification (RUC) of the location). The criteria used to select variables for the analysis are as follows:

  1. The variables must directly relate to tourism, rather than the economy, with the exception of the RUC. Contextual data was also removed.

  2. The variables are either a percentage value or can be converted into a percentage value. This is to ensure population bias is removed. Ratio variables were calculated to combine variables deemed as important in the analysis that couldn’t be expressed as a percentage and so could not otherwise be included. For example, the average nights per trip ratio was calculated by the number of nights stayed divided by the number of trips taken to the location.

  3. The variables cannot include observations relating to the percentage breakdown of visitors by location. This is because this breakdown includes Scotland, which is not part of the analysis.

  4. The variables are a three year average, specifically 2011-2013, to allow correct analysis and comparison of variables. This meant that for some variables, a three year average was calculated to enable inclusion.

Aggregation of Greater London

In the first instance, individual data for each of the 33 London boroughs were used in the analysis. This caused too much variation in the cluster results, with the London boroughs distributed throughout the clusters as a result of the widely different tourism characteristics of these areas, which is largely an artefact of the use of survey instruments. This meant that it was not possible to get a true picture of tourism in London as a whole. Therefore to resolve this concern, the 33 boroughs of London were aggregated and are referred to as ‘Greater London’. For each variable, a Greater London observation was derived and used in the analysis.

Greater London consists of the following 33 boroughs: City of London; Barking and Dagenham; Barnet; Bexley; Brent; Bromley; Camden; Croydon; Ealing; Enfield; Greenwich; Hackney; Hammersmith and Fulham; Haringey; Harrow; Havering; Hillingdon; Hounslow; Islington; Kensington and Chelsea; Kingston upon Thames; Lambeth; Lewisham; Merton; Newham; Redbridge; Richmond upon Thames; Southwark; Sutton; Tower Hamlets; Waltham Forest; Wandsworth; Westminster.

Rural-Urban Classification (RUC) for the counties and unitary authorities of England and Wales

The following classifications are used:

RUC

  1. Mainly rural

  2. Largely rural

  3. Urban with significant rural

  4. Urban with city and town

  5. Urban with minor conurbation

  6. Urban with major conurbation

The RUC for England counties and unitary authorities are based on the 2011 census and are currently being prepared for publication by DEFRA.

The only RUC available for areas in Wales are at a ward level, from 2011. The wards were grouped into their corresponding unitary authority or county and the average of their RUC (rounded to 0 decimal places) was used as the RUC for the unitary authority or county. This approach has limitations but provided the best match with existing RUCs available for the counties and unitary authorities of England.

Cluster Analysis

A k-means cluster analysis was performed separately (using SPSS) on each of the four themes (employment and industry; domestic day visits; domestic overnight tourism; inbound tourism). K-means clustering is a technique that aims to partition a number of different observations into a specified number (k) of clusters, in which each observation belongs to the cluster according to similarities in the values for a selected set of variables. This grouped the counties and unitary authorities into k clusters based on commonalities between the geographical locations and variables. Themes 1 and 4 were grouped into four clusters and themes 2 and 3 were grouped into five clusters.

A final k-means cluster analysis was performed on the variables classified as significant during the factor analysis (see below for further details of the factor analysis). The resultant cluster analysis produced a fivefold classification of geographical locations based on similarities in tourism characteristics.

Imputation

As the data used is originally from surveys (Great Britain Day Visits Survey, Great Britain Tourism Survey, International Passenger Survey, Annual Population Survey and Inter-Departmental Business Register) there are some variables with missing, or suppressed, data for some counties and unitary authorities. The missing values were imputed using the averages of the counties or unitary authorities that were from the same country (England or Wales) and shared the same RUC. These imputed values were then used when performing the factor analysis and the clustering of the locations based on factor variables. This was not a necessary procedure for the initial cluster analysis; the locations were automatically excluded from these clusterings.

Factor Analysis (Un-weighted Least Squares)

A factor analysis was performed (using SPSS) on the variables across all four themes. Factor analysis is a method of reducing the amount of observed variables to return groupings of a lower number of uncorrelated variables called factors. A factor contains multiple variables. Un-weighted least squares was the chosen extraction method.

The factor analysis was performed on 172 variables and reduced the data set to four factors that include 96 of 172 variables. Factor one contains 42 variables; factor two contains 41 variables; factor three contains 16 variables; factor four contains 7 variables. This method aims to minimise the errors between the correlation estimates and factor correlation estimates, as well as reducing the number of variables.

Calculation of Factor Scores (including standardisation and transformation)

The standard score (also known as the z-score) was calculated for each variable that was found significant from the factor analysis. The standard score for a piece of data is the ‘value minus the mean, divided by the standard deviation’. A value of zero would suggest that the observation is equal to the mean; a positive standard score indicates the observation is above the mean; a negative standard score indicates the observation is below the mean. The standard scores allow us to compare the observations for each variable on a scale that is consistent.

A factor score was calculated for each county and unitary authority (one score per location per factor). The factor score is the sum of all the standard scores for each variable within the factor for each geographical location (standard scores were transformed when required, see below). The factor score is a value that represents the relationship between the variables within the factor and the county or unitary authority. A transformation was performed on variables within a factor if the variable was below average for a variable (for example, a lower percentage of jobs within accommodation for visitors): these z-scores were multiplied by -1, to give a transformed standard score. This means that the higher the factor score, the stronger the correlation between the county or unitary authority and the factor variables, i.e. for a high positive factor score, the geographical location strongly shares the characteristics of the factor.

Nôl i'r tabl cynnwys

8 .Background notes

  1. Details of the policy governing the release of new data are available by visiting www.statisticsauthority.gov.uk/assessment/code-of-practice/index.html or from the Media Relations Office email: media.relations@ons.gov.uk
Nôl i'r tabl cynnwys

Manylion cyswllt ar gyfer y Bwletin ystadegol

Anna Bodey and Sean White
sean.white@ons.gov.uk
Ffôn: +44 (0)1633 455687