🚀 go-pugleaf

I hope this (old, but still accurate) discussion of DeltaGraph helps out in
the "which graphing program is better" debate.
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Check MacWorld 7/90 for a basic discussion.  It convinced me to buy DeltaGraph.
I have basically been happy with it, but:

1) it's really a "color" Mac program- to use it on B&W screens (I use both)   
   you have to keep straight the difference between "colors", "grayscales"
   and "fill patterns".  Not tough but annoying at first.
2) The "formula evaluation" capabilities are limited.  Suppose I have two
   columns, of x data and y data.  I plot them, and then I use their "curve
   fitting" feature to get a least-squares-fit line formula.  I can't directly
   plot that line on my graph, but I can go back into the "spreadsheet" and
   calculate it. And it's not even that easy, because all the spreadsheet
   can do is process one operation at a time. That is, if the formula I have
   is "y=3x+5", the "3x" and "+5" are two separate operations.  And it's not
   like Excel either, if I decide to look at "y=2.9x+5" I have to repeat the
    whole process, I can't just change the coefficient and hit "recalculate".
   For scientific/engineering use this is DG's biggest weakness.  They do
   offer an Excel macro which is supposed to "hot link" the 2 programs, but
   I found that it doesn't always work.

Your mileage may vary.  This article may not be reprinted without the
written consent of the Commissioner of Major League Baseball or his mom.

--
==== Scott Barvian ============ Department of Electrical/Computer Eng. ===
==== barvian@ece.cmu.edu ====== Carnegie Mellon Univ., Pittsburgh, PA  ===