dataframe - R: Transform 2 columns into a data frame based on counting column values -


i trying reshape 2 columns of data frame new data frame. both columns have text values. need count each combination of values , put them in data frame.

below example of 2 columns need use:

2 columns data frame:

   col1 col2       z     b   z     b   z     c   x     c   z     d   x

desired output show count of each combination:

    z   x   1   0 b   2   0 c   1   1 d   0   1

thank you

you can use table on dataset

table(df1) #       col2 #col1 x z #   0 1 #   b 0 2 #   c 1 1 #   d 1 0

if need output 'data.frame'

as.data.frame.matrix(table(df1))

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