The Remove command is used to remove columns from a DataFrame:
The following removes the second column of the DataFrame:
It is also possible to remove multiple columns of a DataFrame:
It is possible to remove rows in a DataFrame using the mode option:
The Remove command does not act inplace. In order to permanently remove a column, reassignment is needed.
The Remove command is helpful when dealing with DataFrames that have a mixture of non-numeric and numeric columns. For example, the Iris data set has 4 columns of numeric data and one column of strings.
Attempting to plot or run any statistical analysis on this dataset as is will often result in an error due to the non-numeric data. Removing the non-numeric data for analysis avoids this issue.
