SGPLOT or GTL does not have a FitPolicy to rotate the y-axis values.  Normally, this is not needed as the values are horizontal, and cause minimal collisions.  Rotatin them may not help, and is harder to read.  Sometimes there are too many values on the y-axis so the spacing available for each value is less then the height of the value font, and they collide.  In this case, only some values are displayed.  To prevent this, you can set FitPolicy=none. ... View more