在 pandas 中创建总列的百分比

Question

I can't seem to figure out how to add a % of total column for each state and year in pandas.

my data looks like this

year type   Arizona_total Utah_total California_total Colorado_total 
2018 Total    163,176      90,344       343,343          32,343
2018 bio.     272          270            234.            2343

The data then continues for each major back until 1990. I want to create a column that is a percent of total majors in that state during that year for each state.

I am a newbie and I apologize for the simple / poorly worded question.

Answer 1

Try this.

total = np.sum(df.ix[:,'Arizona_total':].values)
df['percent'] = df.ix[:,'Arizona_total':].sum(axis=1)/total * 100
df