Graphing Solution...

Glen Bojsza gbojsza at gmail.com
Sun May 27 22:15:01 EDT 2018


Hi Brian,

They are good ideas...I haven't done anything with widgets.

How do I get access to the source code?


On Sun, May 27, 2018 at 8:40 PM Brian Milby via use-livecode <
use-livecode at lists.runrev.com> wrote:

> In LC9, you could possibly use the line graph widget.  The source is
> available, so you could modify it to support dual y-axis (but I'll admit
> this wouldn't be trivial to complete).
>
> A possibly easier modification would be to add the ability to display the y
> labels on the right side.  Then you could use 2 widget instances, properly
> aligned, to display the data.  The first series in an instance with the
> left labels and the second in the one with right labels.
>
> Another option, depending on how much data is being displayed (and if you
> need the ability to select a point on the graph and display the value -
> which would probably require the first solution), would be to fake it  .
> You could take the data for the first y scale and then map the next series
> to those values for graphing.  Then you would just need to display another
> scale on the right side of the chart to show the values.
>
> So for s1 = 1, 2, 3; s2 = 30, 20, 10
> You would graph s1 = 1, 2, 3; s2 = 3, 2, 1 (but have a label on the right
> going from 10 to 30)
>
> Thanks,
> Brian
>
> On Sun, May 27, 2018 at 2:21 PM, Glen Bojsza via use-livecode <
> use-livecode at lists.runrev.com> wrote:
>
> > Hello,
> >
> > I am trying to find a graphing solution that will support dual y - axis
> > line plots.
> >
> > Both sets of data need to be plotted on the same graph so the left Y
> scale
> > is used for one set of data that is plotted and the right Y scale is for
> > the other set of data.
> >
> > From what I have found neither ChartMaker or ChartsEngine support this
> type
> > of plot.
> >
> > Does anyone have any suggestions?
> >
> > thanks,
> >
> > Glen
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