R: Extract the results for rows/columns - CA

get_ca {factoextra} | R Documentation

## Extract the results for rows/columns - CA

### Description

Extract all the results (coordinates, squared cosine, contributions and inertia) for the active row/column variables from Correspondence Analysis (CA) outputs.

- get_ca(): Extract the results for rows and columns

- get_ca_row(): Extract the results for rows only

- get_ca_col(): Extract the results for columns only

### Usage

    get_ca(res.ca, element = c("row", "col"))

    get_ca_col(res.ca)

    get_ca_row(res.ca)

### Arguments

`res.ca` | an object of class CA [FactoMineR], ca [ca], coa [ade4]; correspondence [MASS].
`element` | the element to subset from the output. Possible values are "row" or "col".

### Value

a list of matrices containing the results for the active rows/columns including :

`coord` | coordinates for the rows/columns
`cos2` | cos2 for the rows/columns
`contrib` | contributions of the rows/columns
`inertia` | inertia of the rows/columns

### Author(s)

Alboukadel Kassambara alboukadel.kassambara@gmail.com

### References

http://www.sthda.com

### Examples

    # Install and load FactoMineR to compute CA
    # install.packages("FactoMineR")
     library("FactoMineR")
     data("housetasks")
     res.ca <- CA(housetasks, graph = FALSE)

    # Result for column variables
     col <- get_ca_col(res.ca)
     col # print
     head(col$coord) # column coordinates
     head(col$cos2) # column cos2
     head(col$contrib) # column contributions

    # Result for row variables
     row <- get_ca_row(res.ca)
     row # print
     head(row$coord) # row coordinates
     head(row$cos2) # row cos2
     head(row$contrib) # row contributions

     # You can also use the function get_ca()
     get_ca(res.ca, "row") # Results for rows
     get_ca(res.ca, "col") # Results for columns

[Package factoextra version 1.0.5 Index]