hello,
I know how to use the function "cor" to do correlation frame but it remains a problem because  I wanna calculate correlation between vector with differents dimensions it is possible?
 for exemple my data :

> V
[[1]]
 [1]  97 104 103  98  99  92  99  99  98  87  95 101  91 104  98  96  84  97  92 104  97
[[2]]
 [1] 102 100  82 106  85  97 101  99  90 101  97  93 100  99  92  90 102  94  99 104
[[3]]
 [1]  98  95 104  96 104  86 100  91  94  95  99 100  95  95 104  98  97  99  94 100  94

length(V[[1]]) =  length(V[[3]]) = 21 but length(V[[2]]) = 20


      
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