[R] Re : descriptive statistics

[effeesse]

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?
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