python - How would I plot a graph of the number of non-NaNs per column in pandas? -

python - How would I plot a graph of the number of non-NaNs per column in pandas? -

i messed around pd.count, can't seem dataframe descending columns , counts in way can plotted.

for example:

a b c d 1 1 1 1 nan nan 1 1 nan nan nan 1

i want ordered counts of values minus nans:

a 1 b 1 c 2 d 3

and graphed line graph depicting counts. i've looked around , there doesn't seem clear cutting way. help appreciated.

ah, okay:

ser = df.count() ser.sort(ascending=false) ser.plot(ser.plot(kind='barh')

python matplotlib pandas