Hi R, The error I get if I try to merge the zoo objects, intra1, intra2, and intra3 are as follows: > z=merge(intra1,intra2,intra3) Error in dimnames(x) <- dn : length of 'dimnames' [2] not equal to array extent Does this error mean that when merged, two columns have the same column name and so we get this error and hence not able to merge? Need a concurrence... Thanks in advance... Shubha [[alternative HTML version deleted]]