Hi,
I have a dataframe SDF1 that looks like this:
Char1 Char2 Char 3 W.2007.02 W.2007.09 W.2007.16 W.2008.13
A C1 F1 F2 F3
A C2
F4
B C3 F5
F6
I have another dataframe SDF2 with 163 cols that has the following column
names
Char1 Char2 Char 3 W.2007.02 W.2007.03 W.2007.04 W.2007.05 W.2007.06
.W.2007.52 W.2008.01 . W.2008.13
Now I would like to add the missing period names to SDF1 as new columns and
in the same order as in SDF2.
Therefore I use the following formula:
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