Dear lists, Anysuggestion on how to write a loop function which has nx2 matrix as an input, where each of the row represents an interval. the function should return a mx2 matrix containing the no matched interval of x?? i've tried my own function but it's only applies for 2x2 matrix. Here is my code: overlap<-function(x,y){ m=length(x) n=length(y) for(i in 1:m){ for(j in 1:n){ if(x[i]>=y[j]) print(TRUE) else print(FALSE) } } } Many thanks!! Cheers, Anisah
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