pandas convert nan to zero code example

Example 1: how to replace nan with 0 in pandas

df['product']=df['product'].fillna(0)
df['context']=df['context'].fillna(0)
df

Example 2: python pandas convert nan to 0

pandas.DataFrame.fillna(0)

Example 3: python zeros to nan

a[a==0] = np.nan

Example 4: how to replace zero value in python dataframe

nonzero_mean = df[ df.col != 0 ].mean()