[R] From two colors to 01 sequences

Paul Smith phhs80 at gmail.com
Tue May 12 13:20:56 CEST 2009

Dear All,

Perhaps, what I am asking is impossible, but I am asking it anyway.

I have got several pdf files with rows of colored rectangles: red
rectangles should be read as 0; green rectangles as 1. No other color
exists. Is there some way to have R reading the colored rectangles to
a matrix or data frame converting the color of the rectangles to
sequences of 01?

Thanks in advance,


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