convert string values to numeric in pandas code example

Example 1: convert column to numeric pandas

# convert all columns of DataFrame
df = df.apply(pd.to_numeric) # convert all columns of DataFrame

# convert just columns "a" and "b"
df[["a", "b"]] = df[["a", "b"]].apply(pd.to_numeric)

Example 2: make string numeric pandas

df['DataFrame Column'] = df['DataFrame Column'].astype(int)

Example 3: convert pandas series from str to int

df['DataFrame Column'] = pd.to_numeric(df['DataFrame Column'])