The Labels command returns the list of labels for a DataSeries object, or a single label. A single label is specified by its position.

The SubsLabel command creates a DataSeries object with a different label. Note: this does not modify the given DataSeries object DS - it just returns a new DataSeries object. See the Examples section below.

If i is negative, it specifies the position counting from the end. For example, -2 specifies the label before last.

$\mathrm{ds}≔\mathrm{DataSeries}\left(\left[5\,6\,8\right]\,\mathrm{labels}=\left[a\,b\,c\right]\right)$

$\mathrm{ds}≔\left[\begin{array}{cc}a& 5\\ b& 6\\ c& 8\end{array}\right]$

$\mathrm{Labels}\left(\mathrm{ds}\right)$

$\left[a\,b\,c\right]$

$\mathrm{Labels}\left(\mathrm{ds}\,2\right)$

$b$

$\mathrm{ds2}≔\mathrm{SubsLabel}\left(\mathrm{ds}\,1\,z\right)$

$\mathrm{ds2}≔\left[\begin{array}{cc}z& 5\\ b& 6\\ c& 8\end{array}\right]$

$\mathrm{Labels}\left(\mathrm{ds}\right)$

$\left[a\,b\,c\right]$

$\mathrm{Labels}\left(\mathrm{ds2}\right)$

$\left[z\,b\,c\right]$

$\mathrm{ds}≔\mathrm{SubsLabel}\left(\mathrm{ds}\,-1\,y\right)$

$\mathrm{ds}≔\left[\begin{array}{cc}a& 5\\ b& 6\\ y& 8\end{array}\right]$

$\mathrm{Labels}\left(\mathrm{ds}\right)$

$\left[a\,b\,y\right]$

$\mathrm{SubsLabel}\left(\mathrm{ds}\,b\,x\right)$

$\left[\begin{array}{cc}a& 5\\ x& 6\\ y& 8\end{array}\right]$

The DataSeries/Labels and DataSeries/SubsLabel commands were introduced in Maple 2016.

For more information on Maple 2016 changes, see Updates in Maple 2016.