creating vector from df.intertuples
__peter__ at web.de
Mon Apr 17 13:56:52 EDT 2017
Richard Medina wrote:
> I want to create a vector from a dataframe in a loop. Then I want to
> create a new column from this vector.
> for row in df.itertuples():
> mm = str(row.t) #selecting "t" column
> nn = get_sec(mm) #this function converts time to seconds
> df["s"] = nn #I want to add my new vector to a new "s" column in
> my df
> print(df.head()) #only gives me the last number in the "nn" column.
I think you need to build the whole column before adding it to the
df["s"] = [get_sec(str(t)) for t in row.t]
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