python - Count no. of specific values in a dataframe pandas -
this question has answer here: count frequency of values in pandas dataframe column 4 answers i newbie in data analysis stuff. trying analyse dataset using python. i want count no. of 1s in survived column no. of male , female in sex column passengerid survived pclass sex 0 1 0 3 male 1 2 1 1 female 2 3 1 3 male 3 4 1 1 female 4 5 0 3 male i tried groupby() giving error. in[88] titanic_data.groupby('survived') out[88] <pandas.core.groupby.dataframegroupby object @ 0x000000000bffe588> please suggest solution use value_counts : df['survived'].value_counts() df['sex'].value_counts()