Displaying 2 results from an estimated 2 matches for "brkdnnest".
2011 Apr 30
3
using tapply with multiple variables
HI All,
I have a long data file generated from a minimal pair test that I gave to
learners of Arabic before and after a phonetic training regime. For each of
thirty some subjects there are 800 rows of data, from each of 400 items at
pre and posttest. For each item the subject got correct, there is a 'C' in
the column 'Correct'. The line:
tapply(ALLDATA$Correct,
2010 Sep 21
2
group means of multi-way table?
hello, can someone tell me how to generate the means for a data frame
that looks like this? My data frame has many more variables, but I
won't bother you with those; these are the one's that I'm interested in.
Needless to say, z is the variable in which I'm interested. I'd like
to find out the mean score of z for NDP managers, Conservative
managers and Liberal managers