r - If Else Statements and Vector Length -


i'm trying perform correlations between vectors of unequal length, e.g.,

cor(x , y )

i want use largest possible number of observations each. moreover, i'd sample "randomly" each of vectors.

in pseudocode: 

cor(     sample(x, size = length(x or y, whichever smaller), replace = false )   , sample(y, size = length(x or y, whichever smaller), replace = false ) )

any ideas on how can this?

pretty sure you're asking, question motivations of not using pairwise correlations:

x <- 1:10 y <- 15:35  min.of.xy <- min(length(x), length(y))  cor(sample(x, min.of.xy, replace = false),     sample(y, min.of.xy, replace = false))

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