[R] Merging two data.frames
lambertd at ksu.edu
Mon Dec 8 17:42:57 CET 2014
I have 2 data frames, M1[n,20] and M2[m,30].
If V1 and V2 are the same in both M1 and M2, then append V3-V30 from M2 onto M1.
Otherwise, continue searching for a match.
M1 is complete for all V1 and V2. M2 is missing observations for V1 or V2, or both.
I can't figure this one out, except with reference to my old fortran-era skills. Help!
[[alternative HTML version deleted]]
More information about the R-help