All Questions
Tagged with correspondence-analysis biplot
10 questions
3
votes
1
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43
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Visualizing shared instances of p-values<alpha across large numbers of treatments
Assume a data table that presents the p-values of a large number of independent runs of a statistical hypothesis test. Each run represents a single test with two possible hypotheses (i.e., null and ...
0
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0
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49
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Is it possible to code in a CA the additional variables in dummies variables
I'm doing a correspondence analysis as part of a study.
Unfortunately, one of the commands I use with R doesn't work because I have supplementary categorical variables that the package doesn't ...
1
vote
0
answers
118
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Interpreting the loads in a biplot
I came across a doubt about the interpretation of the biplot. I know that there are lot of questions related to this topic but I have a very concrete question, but I don't find any response.
Suppose ...
0
votes
1
answer
471
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How variables (constrained loadings) are selected in a biplot CCA
I am trying to do a Canonical correspondence analysis (CCA) using the community data and chemical data.
I have my family level taxonomic data as community data.
In chemical data I have 18 variables: ...
1
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0
answers
1k
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R multiple correspondence analysis loadings
I'm running a multiple correspondence analysis in R using the FactoMineR package:
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- 2,361
1
vote
0
answers
211
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I want to run a same result of biplot in R
There is a software called Brandmap$^1$ which can return a biplot from a matrix. I am trying to run the same result in R but the coordinates are not the same.
First I input a simple matrix into the ...
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47
votes
1
answer
24k
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PCA and Correspondence analysis in their relation to Biplot
Biplot is often used to display results of principal component analysis (and of related techniques). It is a dual or overlay scatterplot showing component loadings and component scores simultaneously. ...
- 58.8k
1
vote
1
answer
598
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Interpreting negative coordinates and origin in 2D correspondence analysis plot [duplicate]
Why are there negative values in the range of the plot?
How is the center of the plot (i.e., the $0.0$ point) found?
How did the black-brown points end up in the third quadrant of the plot?
Why ...
- 11
6
votes
1
answer
1k
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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 Interpreting 2D correspondence analysis plots
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- 7,362
21
votes
1
answer
16k
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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 ...
- 7,362