General Functions in Python
General Functions in Python
Pandas: How to Rename Only the Last Column in DataFrame
You can use the following basic syntax to rename only the last column in a pandas DataFrame:
df.columns = , 'new_name']
This particular example renames the...
General Functions in Python
Pandas: How to Sort Rows by Absolute Value
You can use the following methods to sort the rows of a pandas DataFrame based on the absolute value of a column:
Method 1: Sort...
General Functions in Python
How to Calculate Mean, Median and Mode in Pandas
You can use the following functions to calculate the mean, median, and mode of each numeric column in a pandas DataFrame:
print(df.mean(numeric_only=True))
print(df.median(numeric_only=True))
print(df.mode(numeric_only=True))
The following example shows...
General Functions in Python
Pandas: How to Filter Rows Based on Values in a List
You can use the following basic syntax to filter the rows of a pandas DataFrame that contain a value in a list:
df.isin()]
This particular example...
General Functions in Python
Pandas: Extract Column Value Based on Another Column
You can use the query() function in pandas to extract the value in one column based on the value in another column.
This function uses...
General Functions in Python
Pandas: Create Frequency Table Based on Multiple Columns
You can use the following basic syntax to create a frequency table in pandas based on multiple columns:
df.value_counts()
The following example shows how to use...
General Functions in Python
How to Swap Two Rows in Pandas (With Example)
You can use the following custom function to swap the position of two rows in a pandas DataFrame:
def swap_rows(df, row1, row2):
...
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