[R] conditional Dataframe filling

[Camilo Mora]

Hi everyone:

This may be trivial but I just have not been able to figure it out.

Imagine the following dataframe:
a     b     c     d
TRUE  TRUE  TRUE  TRUE
FALSE FALSE FALSE TRUE
FALSE  TRUE  FALSE  FALSE

I would like to create a new dataframe, in which TRUE gets 0 but if  
false then add 1 to the cell to the left. So the results for the  
example above should be something like:

a     b     c     d
0     0     0     0
1     2     3     0
1     0     1     2

I wonder if you may know?.

Thanks,

Camilo




Camilo Mora, Ph.D.
Department of Geography, University of Hawaii
Currently available in Colombia
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http://www.soc.hawaii.edu/mora/