Dear R users,
I have a simple question (probably) but i couldnt how to find a solution for
that.
i am using 2 digit industry codes and 3 digit industry codes for my model, and
i need to create dummies for the industries. The case is simple for the 2-digit
industries since there are not that mcuh of them, so i am creating my dummies
as following
ind_2da<-(ind_2d==11)#for the 11th industry
ind_2dc<-(ind_2d==12)#for the 12th industry and so on so forth ... then i
directly put the dummy into the regression which works well.
but creating dummies for the 3-digit is rather complicated since there are alot
of sub-industries, for example:111,112,113...119 and this is just for the 11th
industry
so when i consider the codes continues till 40, it would be exhausting to do it
by hand.
so i was looking for the loop commands to do it faster but since i am a newbie
i got lost in it.
so is there some one who can help me for this problem?
thanks in advance
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