I am sorry, but I cannot understand how to use the "summary" function. Maybe, if I describe my needs, you could sketch a line that could work. In the data set variable "V" can take values 1 to 14. For the subgroup of individuals where "V" takes value =1 I want the mean and variance of a certain set of other variables (V1, V2, V3, V4, V5). And this for all the other subgroups for values 2 to 14. What do you suggest? -- View this message in context: http://r.789695.n4.nabble.com/descriptive-statistics-tp3085197p3085462.html Sent from the R help mailing list archive at Nabble.com.
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