Displaying 1 result from an estimated 1 matches for "failtyp".
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failty
2005 Nov 12
1
computation on a table
...ering
questions. I want to know how many PERCENT of the answers are wrong,
caused by reason A or B.
This gives me the subset of false answers. The table looks like table (1):
fail <- subset(questions, type=="wrong")
fail$qid <- factor(fail$qid)
failtab <- table(fail$failtype, fail$qid)
The following gives me information about how often a specific question
was asked. This is similar to table (2) above.
count <- table(questions$failtype, questions$qid)
count <- colSums(count)
One solution would be to delete the line that calls factor(...) on the
subset...