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...very low education level, 21 with low education level, etc. I need to compute a score for each area that reflects the education level in this area. This can be done by using correspondence analysis: The scores on the first factor represent an optimal scaling in a certain sense (see the book of Greenacre (1984) "Theory and applications of correspondence analysis" for instance). In other words, I have to transform my ordinal variable "EducationLevel" into a continuous variable "EducationScore". However, this procedure does not account for the fact that one of my v...

...s, France, July 8 to 10, 2000. The conference schedule comprises invited lectures and user-contributed sessions as well as half-day tutorials presented by R experts on July 7, 2009, prior to the conference. Invited speakers will include Adele Cutler, Peter Dalgaard, Jerome H. Friedman, Michael Greenacre, Trevor Hastie, John Storey, Martin Theus. The spectrum of user-contributed sessions will depend on your submissions. Hence, we invite you to submit abstracts for a talk or a poster on topics presenting innovations or exciting applications of R. The call for papers along with the link to the...

...resentation at the conference and submit an abstract or a poster on topics presenting innovations or exciting applications of R. You can use the conference Web page at http://www.R-project.org/useR-2009/ Invited speakers will include: Adele Cutler, Peter Dalgaard, Jerome H. Friedman, Michael Greenacre, Trevor Hastie, John Storey, Martin Theus. July 7, 2009, half-day tutorials are presented by R experts prior to the conference. The conference web page: http://www.agrocampus-ouest.fr/math/useR-2009/accomodation.html gives a list of hotels and some student rooms (200) are also available on the c...

...s, France, July 8 to 10, 2000. The conference schedule comprises invited lectures and user-contributed sessions as well as half-day tutorials presented by R experts on July 7, 2009, prior to the conference. Invited speakers will include Adele Cutler, Peter Dalgaard, Jerome H. Friedman, Michael Greenacre, Trevor Hastie, John Storey, Martin Theus. The spectrum of user-contributed sessions will depend on your submissions. Hence, we invite you to submit abstracts for a talk or a poster on topics presenting innovations or exciting applications of R. The call for papers along with the link to the...

Enio Jelihovschi" eniojelihovs@gmail.com Date: Fri, 20 Oct 2006 11:28:12 -0200 Subject: CORRESPONCE ANALYSIS Dear All I am new R user, trying to do correspondence analysis using the function mca of the package MASS. My question is: In the following example farms.mca <- mca(farms, abbrev = T) # Use levels as names plot(farms.mca, cex = rep(0.7, 2), axes = F) How can I change the

...resentation at the conference and submit an abstract or a poster on topics presenting innovations or exciting applications of R. You can use the conference Web page at http://www.R-project.org/useR-2009/ Invited speakers will include: Adele Cutler, Peter Dalgaard, Jerome H. Friedman, Michael Greenacre, Trevor Hastie, John Storey, Martin Theus. July 7, 2009, half-day tutorials are presented by R experts prior to the conference. The conference web page: http://www.agrocampus-ouest.fr/math/useR-2009/accomodation.html gives a list of hotels and some student rooms (200) are also available on the c...

Andy, Take a look at Greenacre, Theory and Applications of Correspondence Analysis. He has many example of dealing with all sorts of data. Basically, the technique is relevant for 2-way tables -- MCA is an extenstion. It is not clear in your example whether CA is really appropriate -- you want to make an observation (if at a...

Greetings, again. This is not strictly an R question, so please feel free to ignore it if you like. My question is about the substance of correspondence analysis. Specifically, is it appropriate to use ca on a matrix of values such that the columns and/or rows are not mutually exclusive? To be more detailed: - The standard use of ca is illustrated in the example of corresp() (from MASS):

Dear list, I want to perform a logistic regression analysis with multiple categorical predictors (i.e., a logit) on some data where there is a very definite relationship between one predicator and the response/independent variable. The problem I have is that in such a case the p value goes very high (while I as a naive newbie would expect it to crash towards 0). I'll illustrate my problem

...ode for almost all the examples and a CD-ROM with all the datasets and SAS and R code. Discounted Price: $64.79 / ?35.99 For more details and to order: http://www.crcpress.com/shopping_cart/products/product_detail.asp?sku=C6196 *** Correspondence Analysis in Practice, Second Edition Michael Greenacre, Universitat Pompeu Fabra, Barcelona, Spain Publication Date: 5/7/2007 Number of Pages: 264 Presenting a comprehensive introduction that employs a practical approach to theory and applications, this new edition provides a descriptive and exploratory statistical technique to analyze simple two-w...