distmy: distance among matrix columns with freely choosable distance...

In quantable: Streamline Descriptive Analysis of Quantitative Data Matrices

Description

distance among matrix columns with freely choosable distance function

Usage

distmy(x, func, init = NA, diag = TRUE)

Arguments

x	data
func	function taking 2 arrays x, y
init	how to initialize the output matrix
diag	should the diagonal be also computed

Value

matrix with dist[i,j] = func(x[,i],[x,j])

Examples

mat = matrix(rnorm(10*5000),ncol=10)
redist = distmy(mat,function(x,y){mean(abs(x-y))},init=NA,diag=FALSE)
image(redist)
redist = distmy(mat,cor,init=0,diag=FALSE)
image(redist)
redist = distmy(mat,function(x,y){ks.test(x,y)$p.value},init=1,diag=TRUE)
image(redist)
hist(uppertriang(redist))
range(uppertriang(redist))
which(redist < 0.05 , arr.ind = TRUE)

quantable documentation built on May 2, 2019, 4:05 p.m.