The correspondence-analysis tag has no wiki summary.
4
votes
2answers
134 views
How to best display crosstab data?
I have a 10x10 matrix composed of two variables with 10 brands each. One variable is the brand purchased, the other is the brand considered. My matrix shows a crosstabulation between the two. I need ...
1
vote
1answer
92 views
How to factor analyze two binary variables only
Normally when I do factor analysis, I have a whole bunch of variables that need to be reduced. But here I only have two binary variables (yes/no) that I need to reduce into one interval factor. Is ...
3
votes
1answer
41 views
How to choose asymmetric biplots in correspondence analysis
I have categorical data on Police Stations against Crime categories on a 2-way contingency table. I have an asymmetric row map and column map from correspondence analysis using XLSTAT. Which one of ...
5
votes
1answer
192 views
Discrete data & alternatives to PCA
I have a dataset of discrete (ordinal, meristic, and nominal) variables describing morphological wing characters on several closely related species of insects. What I'm looking to do is conduct some ...
2
votes
1answer
294 views
Difference between canonical correpondence analysis and canonical correlation analysis
I am no statistical geek and this might be a very naive question.....I am sorry before hand... please share your knowledge.
I am bit confused between two terms Canonical Correpondence Analysis and ...
4
votes
1answer
643 views
Interpreting multiple correspondence analysis
I am interested in exploring how different characteristics of national pension systems are related to each other. I have used MCA for a dataset in which the rows are countries and the columns are ...
7
votes
3answers
404 views
Dimension reduction techniques for very small sample sizes
I have 21 socio-economic and attitudinal macro-level variables (such as percentage of mothers aged 24-54 not employed, percentage of children aged 3-5 in nursery schools and so on). I also have data ...
2
votes
1answer
78 views
Correspondence analysis on a table of means
I have a table of the following kind:
Cat1 cat2 cat3 ...
Var1 6.3 5.3 8.3
Var2 5.2 5.7 6.1
Var3 2.2 3.9 7.6
.
.
.
It is a table of means for ...
0
votes
0answers
606 views
How to perform correspondence analysis on ordinal data in SPSS?
I have 500 rows and three columns. Two of the variables (that i want to analyze) are in ordinal form and the other in scale. However, when i run the correspondence analysis wizard in SPSS i can only ...
5
votes
1answer
250 views
Correspondence analysis for a three-way contingency table
I'm wondering how to proceed to perform Canonical Correspondence Analysis and Multiple Correspondence Analysis in R on the following three-way contingency table
...
3
votes
1answer
495 views
Interpreting 2D correspondence analysis plots (Part II)
I'd like to ensure that I understand the process correctly. This is a follow-up question to http://stats.stackexchange.com/questions/3270/interpreting-2d-correspondence-analysis-plots
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9
votes
1answer
2k views
Interpreting 2D correspondence analysis plots
I've been searching the internet far and wide... I have yet to find a really good overview of how to interpret 2D correspondence analysis plots. Could someone offer some advice on interpreting the ...
