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...,3] [1,] 30 35 40 [2,] 31 36 41 [3,] 32 37 42 [4,] 33 38 43 [5,] 34 39 44 The positions I wish to extract are 1 and 5 of the first row of each matrix (in my case are 25positions) and with this generate a new matrix with the form d= [,1] [,2] [,3] [1,] 1 15 30 [2,] 5 19 34 The ideais to builda loop toextract thisinformation from hundredsmatrices, butI failed todo so. Any helpwould be greatthank you very muchin advance regards .jpg [[alternative HTML version deleted]]

Hi, I'm trying to builda R-3.3.0 base package on Windows 8.1, and it fails while building 'base' package with an error about unable to create a directory under /tmp. I am running the make from my D:\ partition, and I have created a \TMP directory under both C:\ and D:\. I have also modified my environment variab...