getslope displays the equation of the current line of the figure. Use
the menu 'Insert > Line' to draw a line first. getslope allows for
rough curve fitting "by eye". Use the shortcut Ctrl+G if the Ezyfit
menu is installed (see efmenu).
Depending of the axis types, the equation of the line will be:
Y = N*X+A for X linear and Y linear
Y = A*X^N for X log and Y log
Y = A*EXP(N*X) for X linear and Y log
Y = A+N*LOG(X) for X log and Y linear (LOG = natural logarithm)
[N, A] = getslope also returns the parameters N and A of the equation.
[N, A] = getslope(OPT) specifies the display mode:
'eq' displays the full equation (by default).
'slope' displays only the slope N.
'nodisp' displays nothing.
See Also
showslope, plotsample, rmfit, efmenu.