Dear everybody!
If I have an array of numbers e.g. the points my students got at an
examination, and a key to group the numbers, e.g. the key which
interval corresponds with which mark (two arrays of the same length or
one 2x(number of marks)), how can I get the array of absolute
frequencies of
It would be nice if you could supply an example of what your input
looks like and then what you would like your output to look like. You
would probably use 'tapply', but I would have to see what you data
looks like.
On 7/9/07, Mag. Ferri Leberl [EMAIL PROTECTED] wrote:
Dear everybody!
If I
