y2label:

Synopsis: Set the y-axis text label for the right y-axis.

Syntax: ylabel ( "string", I )

Description:

	Set the y-axis label for the I:th plot-window. 
	y2label() uses the right y-axis.
	If y2label() is used without any arguments, then the
	y-axis label is set to the null-string. 
	
	If 'I' is not specified the default plot-window is used, see defplotwin().

See Also: xlabel, x2label, ylabel, zlabel, label, title
