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2010 Dec 07
2
longer object length is not a multiple of shorter object length
In datamatrix[, "y"] == datamatrix[, "y"][-1] :
longer object length is not a multiple of shorter object length
out = c(FALSE,datamatrix[,'y'] == datamatrix[,'y'][-1])
and I do not know why I get that error, the resulting out matrix is somehow
one row larger than datamatrix...
all I try to do is filter matrix by dropping rows where [,'y'][-1] ==