mapcols: Find a mapping of columns from cols into refcols that most...
In WinVector/crosspca: Cross Validated Principal Components Analysis

Find a mapping of columns from cols into refcols that most preserves similarity.

1	mapcols(cols, refcols)

`cols`	matrix
`refcols`	matrix nrow(cols)==nrow(refcol), ncol(cols)>=ncol(refcols)

mapping perm of cols to refcols s.t. cols[,perm[j]] ~ refcols[,j] j in seq_len(refcols)

x <- USArrests
perm <- c(2,3,4,1)
x2 <- x[,perm]
mp <- crosspca:::mapcols(x2,x) # should be inverse permutation.

WinVector/crosspca documentation built on June 24, 2020, 5:09 p.m.

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