Displaying 1 result from an estimated 1 matches for "keepid".
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keeped
2012 Jan 12
1
Keep rows where a variable matches one item of a vector
How do I subset data to only keep those rows of a dataframe where a
variable's value matches one item of a vector. For example, how do I keep
all of the rows (and all variables) where mydata$id equals one of the values
in keepid? See below?
mydata <- NULL
mydata$id <- 1:30
mydata$value <- seq(from=1,to=100, length.out=30)
keepid <- c(6,10,12,13,19,25,26,27,28,29)
In other words, I want the output file to have two columns, 1) id and 2)
value, with only those rows where id equals one of the values in the keepi...