Hi,
let us say, i have a data table which has following form:
Index name A1 A2 A3,,,,,A10
and there is an item called David. The interesting things is David is in some of the columns (david is not A1, A2 columns and is in the rest of the columns).
I am interesed in the extracting the index number of david whether is in column or not (if not in the column, may return o or NaN), i tried hard, but could not write the corresponding code, can some one help?
Thanks.
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