What is the method for obtaining the median of certain columns?

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The method for obtaining the median of certain columns in a dataset is:

1. Identify the columns for which you want to find the median.
2. Sort the values in each of these columns in ascending or descending order.
3. If there are an odd number of values, the median is the middle value in the sorted list.
4. If there are an even number of values, the median is the average of the two middle values in the sorted list.
5. Repeat the process for each column.