Hello Shashi,
thanks for your support; but in my opinion it is still not quite right.
I have a hard copy and an extended program on onedrive. The hard copy shows that both curves are not correct. In the second curve I deleted minimum and maximun again. So you can see that in the first curve (with minimum and maximum) the Y values are not displayed correctly!
I have no idea why these values cause problems. Countless other values with the same program are displayed absolutely correctly.
Franz
