tips and tricks: subset data frame rows by a vector

[Lauren Hodgson]

Cool trick i just learned!

Subset data frame rows by a vector:

rows.you.want=c('a','b')

origData=data.frame(cbind(x=letters[1:10],y=1:10))

subsetOfData = origData[origData$x %in% rows.you.want,] #remember to put that comma to specify that you want all columns of the original data in your subset