[R] ff package: reading selected columns from csv

threshold r.kozarski at gmail.com
Thu Jul 26 10:32:11 CEST 2012

Dear Jan, thank you for your answer.
I am basically following the code Ive been using with read.table, where 
x.class <- c('NULL', 'numeric','NULL','NULL','NULL', 'NULL', 'NULL') 
has been working fine.

Reading all columns works with me but take much longer than allowed time
constrains.. (460 such sets+ time for processing). The number of columns
remains 7 over the whole data set.

Best, Robert

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