Hi all,
I am beginner of R. I want to ask for help from you.
I have two "data.frame" type object : s40 and s100. s40 and s100 have same structure:
they are actually two dimention array like :
V1 V2
34 6768
234 36
65 60
.....
Now s40 and s100 have almost same value in V1, but they lack some value in V1 from
each other. What I want to do is to expand them to be same long by inserting those
lacking values into V1 of s40 and s50 and the responed value in V2 is 0 or mean of V2.
Is there any easy way to set this problem down? Any help will be appreciated very much!
Jia Yiyu
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