


Binning a Column with pandas to Obtain Value Counts
When dealing with numeric data in a pandas data frame, it can be useful to bin the data into specific ranges for analysis. This process is known as binning.
To bin a column in pandas, you can use the following steps:
- Define the bin ranges using the bins parameter.
- Create a new column in the data frame using the cut function.
- Use value counts or groupby to obtain the count of values within each bin.
Example:
Consider the following data frame with a numeric column named 'percentage':
To bin the 'percentage' column into the following bins:
You can use the cut function as follows:
This will create a new column called 'binned' in the data frame that contains the bin labels.
To obtain the value counts within each bin, you can use the value_counts method:
Output:
Alternatively, you can use groupby and aggregate the size:
Output:
This provides you with the count of values within each bin.
The above is the detailed content of How Can I Bin Numeric Data in a Pandas DataFrame and Count Values within Each Bin?. For more information, please follow other related articles on the PHP Chinese website!

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