ktab.data.frame: Creation of K-tables from a data frame

In ade4: Analysis of Ecological Data: Exploratory and Euclidean Methods in Environmental Sciences

Creation of K-tables from a data frame

Description

creates K tables from a data frame.

Usage

ktab.data.frame(df, blocks, rownames = NULL, colnames = NULL, 
    tabnames = NULL, w.row = rep(1, nrow(df)) / nrow(df), 
    w.col = rep(1, ncol(df)))

Arguments

df	a data frame
blocks	an integer vector for which the sum must be the number of variables of df. Its length is the number of arrays of the K-tables
rownames	the row names of the K-tables (otherwise the row names of df)
colnames	the column names of the K-tables (otherwise the column names of df)
tabnames	the names of the arrays of the K-tables (otherwise "Ana1", "Ana2", ...)
w.row	a vector of the row weightings
w.col	a vector of the column weightings

Value

returns a list of class ktab. See ktab.

Author(s)

Daniel Chessel
Anne-Béatrice Dufour [e-mail]

Examples

data(escopage)
wescopage <- data.frame(scalewt(escopage$tab))
wescopage <- ktab.data.frame(wescopage, escopage$blo,
        tabnames = escopage$tab.names)
plot(sepan(wescopage))
data(friday87)
w <- data.frame(scale(friday87$fau, scal = FALSE))
w <- ktab.data.frame(w, friday87$fau.blo, tabnames = friday87$tab.names)
kplot(sepan(w))

ade4 documentation built on Feb. 16, 2023, 7:58 p.m.