r - applying function to permutated objects -

r - applying function to permutated objects -

i have, say, 20 objects. have function performs pairwise analyses. want pairwise analysis on pairs. let's function cor.test. rather write out 190 pairs

a <- cor.test(1,2); b <- cor.test(1,3); c <- cor.test(1,4) ...

how can apply function pairs @ 1 time , spit out, in case, correlations between each pair? advice appreciated.

(in case it's important, each object matrix)

you can utilize combn, not clear how correlations between matrices, here how assuming have vectors:

## set objects within same list , can utilize `mget` if have ## pattern objects names ll <- list(obj1,obj2,obj3) ## combining permutations , applying function combn(seq_len(length(ll)),2,fun = function(x){ cor.test(ll[[x[1]]],ll[[x[2]]]) },simplify=false)

where objects :

obj1 = 1:5 obj2 = 1:5 obj3 = 1:5

r function permutation