On Oct 17, 2014, at 1:21 PM, Chichi Shu wrote:
> Hi, R listers,
> I¡¯m trying to compare a value of a row in a column to values of previous
> rows in another column in a loop. ¡°i¡± is just from first row to the last
> row. j is an another looping controller indicating the rows that row[i] will
Hi, R listers,
I��m trying to compare a value of a row in a column to values of previous rows
in another column in a loop. ��i�� is just from first row to the last row. j is
an another looping controller indicating the rows that row[i] will be compared
to and j will be rows before row[i]. I want
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