search for: ace_xes

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2011 Apr 14
1
nesting multiple for loops
...e contains a number of different 'markers'. Each could be considered a factor variable within the column name. Their are two categories of factors, we'll call them f1 and f2. The data frame names look something like this: 'ace_van' , 'boy_van', 'car_xes' , 'ace_xes', 'dog_wall' , 'car_zounds' f1 <- c('ace', 'boy', 'car', 'dog') f2 <- c('van', 'wall', 'xes', 'zounds') # actual vectors are length 6 and 7, so I don't want to individually sum the 42 combinations. &g...