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11.71 Sample ‘label’ ¶

Function label print text at data points. The string may contain ‘%x’, ‘%y’, ‘%z’ for x-, y-, z-coordinates of points, ‘%n’ for point index.

MGL code:

new ys 10 '0.2*rnd-0.8*sin(pi*x)'
subplot 1 1 0 '':title 'Label plot':box:plot ys ' *':label ys 'y=%y'

C++ code:

void smgl_label(mglGraph *gr)
{
	mglData ys(10);	ys.Modify("0.8*sin(pi*2*x)+0.2*rnd");
	if(big!=3)	{	gr->SubPlot(1,1,0,"");	gr->Title("Label plot");	}
	gr->Box();	gr->Plot(ys," *");	gr->Label(ys,"y=%y");
}