mode : name; specifies whether to remove columns or rows. The default is column. This option is entered in the form mode = m, where m is one of column, columns, row, or rows.

The Remove command removes a chosen column or row or a list of columns or rows from a DataFrame.

$\mathrm{df}≔\mathrm{DataFrame}\left(⟨⟨1\|2\|3⟩\,⟨4\|5\|6⟩\,⟨7\|8\|9⟩⟩\right)$

$\mathrm{df}≔\left[\begin{array}{cccc}& 1& 2& 3\\ 1& 1& 2& 3\\ 2& 4& 5& 6\\ 3& 7& 8& 9\end{array}\right]$

$\mathrm{Remove}\left(\mathrm{df}\,2\right)$

$2$

$\left[\begin{array}{ccc}& 1& 3\\ 1& 1& 3\\ 2& 4& 6\\ 3& 7& 9\end{array}\right]$

$\mathrm{Remove}\left(\mathrm{df}\,\left[2\,3\right]\right)$

$\left[\begin{array}{cc}2& 3\end{array}\right]$

$\left[\begin{array}{cc}& 1\\ 1& 1\\ 2& 4\\ 3& 7\end{array}\right]$

$\mathrm{Remove}\left(\mathrm{df}\,1\,\mathrm{mode}\=\mathrm{row}\right)$

$1$

$\left[\begin{array}{cccc}& 1& 2& 3\\ 2& 4& 5& 6\\ 3& 7& 8& 9\end{array}\right]$

$\mathrm{df}≔\mathrm{Remove}\left(\mathrm{df}\,3\right)$

$3$

$\mathrm{df}≔\left[\begin{array}{ccc}& 1& 2\\ 1& 1& 2\\ 2& 4& 5\\ 3& 7& 8\end{array}\right]$

$\mathrm{IrisData}≔\mathrm{Import}\left(''datasets/iris.csv''\,\mathrm{base}\=\mathrm{datadir}\right)$

$\mathrm{Statistics}:-\mathrm{BoxPlot}\left(\mathrm{Remove}\left(\mathrm{IrisData}\,\mathrm{Species}\right)\,\mathrm{size}\=\left[600\,''golden''\right]\right)$

$5$

The DataFrame/Remove command was introduced in Maple 2017.

For more information on Maple 2017 changes, see Updates in Maple 2017.