Pandas DataFrame.to_numeric() Function
Minahil Noor
Jan 30, 2023
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Syntax of
pandas.DataFrame.to_numeric(): -
Example Codes:
DataFrame.to_numeric()Method to Convert a Series to Numeric -
Example Codes:
DataFrame.to_numeric()Method to Convert a Series to Integer
Python Pandas DataFrame.to_numeric() function converts the passed argument to a numeric type.
Syntax of pandas.DataFrame.to_numeric():
DataFrame.to_numeric(arg, errors="raise", downcast=None)
Parameters
arg |
It is a scalar, list, tuple, 1-d array, or Series. It is the argument that we want to convert to numeric. |
errors |
It is a string parameter. It has three options: ignore, raise, or coerce. If it is set to raise, then an invalid argument will raise an exception. If it is set to coerce, then an invalid argument will be set as NaN. If it is set to ignore, then an invalid argument will return the input. |
downcast |
It is a string parameter. It has four options: integer, signed, unsigned, or float. |
Return
It returns a numeric if parsing is successful. If a series is passed, then it will return a series; otherwise, it will return ndarray.
Example Codes: DataFrame.to_numeric() Method to Convert a Series to Numeric
import pandas as pd
series = pd.Series(['1.0', '2', '-3', '4', '5.5', '6.7'])
print("The Original Series is: \n")
print(series)
series1 = pd.to_numeric(series)
print("The Numeric Series is: \n")
print(series1)
Output:
The Original Series is:
0 1.0
1 2
2 -3
3 4
4 5.5
5 6.7
dtype: object
The Numeric Series is:
0 1.0
1 2.0
2 -3.0
3 4.0
4 5.5
5 6.7
dtype: float64
The function has returned the numeric series.
Example Codes: DataFrame.to_numeric() Method to Convert a Series to Integer
import pandas as pd
series = pd.Series(['1.0', '2', '-3', '4', '5', '6'])
print("The Original Series is: \n")
print(series)
series1 = pd.to_numeric(series, downcast='signed')
print("The Numeric Series is: \n")
print(series1)
Output:
The Original Series is:
0 1.0
1 2
2 -3
3 4
4 5
5 6
dtype: object
The Numeric Series is:
0 1
1 2
2 -3
3 4
4 5
5 6
dtype: int8
The function has returned the int8 type series.