Respected All,
I have entered data into stata data editor and i wish to extract
matrices from the data set and want to write STATA Mata function for
further maipulations. For example consider the following data
m v1 v2 v3 gr
23 1 2 3 1
11 3 1 2 1
23 2 2 1 1
25 1 2 3 2
23 2 1 2 2
28 3 3 1 2
2 1 1 2 3
3 1 3 1 3
1 2 1 2 3
. . . . 4
. . . . 4
. . . . 4
i wish to extract
m1=(23,11,23) m2=(25,23,28) and m3=(2,3,1)
var1=(1,2,3/3,1,2/2,2,1) var2=(1,2,3/2,1,2) and v3=(1,1,2/1,3,1/2,1,2)
Can we make a general program that can extract matrices and vectors
based on the grouping variable entered in stata data editor.
Further if a code is repeated 4 times in grouping variable will
implies that there will be four enteries in "m" vectors and "var"
matrices will be of order 4 X 4 and so on.
Looking for the solution to this problem. If anyone can help me I will
be highly thankful.
Regards,
Nadeem Shafique Butt
*
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