Line Graph Widget - Plotting time series

Alex Tweedly alex at tweedly.net
Wed Jun 5 07:55:28 EDT 2019


Yes - it calls the "ordinary" one the Yaxis,

and the second one the YRightAxis (or YRAxis) in various places, and 
draws it on the right of the graph.

It currently doesn't do a title on the second (right) axis - but should 
be 10 minutes for me to add that if you want it - just let me know. (And 
I should admit that I haven't used, or tested, them as thoroughly as 
most other aspects of the library).

Alex

On 04/06/2019 19:23, Glen Bojsza via use-livecode wrote:
> Hi Alex,
>
> I will take a look at it...thanks.
>
> Can it do dual Y axis graphs?
>
> On Tue, Jun 4, 2019 at 8:50 PM Alex Tweedly via use-livecode <
> use-livecode at lists.runrev.com> wrote:
>
>> Hi Glen,
>>
>> Sounds like the graph widget won't do it.
>>
>> You could try using my GraphMaker library. I gave a brief talk about it
>> at the conference, but since I got back I've been so busy I haven't yet
>> got around to making a general announcement.
>>
>> You can get the library from
>> https://github.com/alextweedly/LivecodeGraphMaker
>>
>> This includes the library (a script-only stack), a demo example (binary
>> UI stack) and a text file of notes.
>>
>> I've added a couple of new examples, covering two different ways to
>> approach your example; they both convert the time-series to seconds, and
>> plot that. Then:
>>
>>    - graph 7 uses a custom formatting function to convert the 'seconds'
>> values into the desired hh:mm:ss to produce a few well-spaced out labels
>>
>> - graph 8 uses explicit X-axis labels for each data point.
>>
>> I'm not sure which of those (or some variant of them) might be what you
>> want.
>>
>> Feel free to ask me any questions if anything is unclear, or needs
>> changing.
>>
>> You can see the output at
>>
>> https://www.kilmelford.com/images/graph7.jpg
>>
>> https://www.kilmelford.com/images/graph8.jpg
>> <https://www.kilmelford.com/images/graph7.jpg>
>>
>> and the required input setup in the demo stack.
>>
>> Alex.
>>
>>
>> On 04/06/2019 07:20, Glen Bojsza via use-livecode wrote:
>>> Hello,
>>>
>>> I am trying to use the Line Graph Widget to grapg a time series (x axis)
>>> where the time is in the format 2:45:16
>>>
>>> The time data is being treated like text and therefore tries to plot
>> using
>>> every x series as a x label.
>>>
>>> Optimally I would like to see only a handful of x labels spread that
>> covers
>>> the time period as x labels.
>>>
>>> I also tried just using linear data series for the x axis and the Line
>>> Graph Widget wants to put a label for every number.
>>>
>>> Is there a property that could be set that recognizes the x data series
>> as
>>> a number or time?
>>>
>>> thanks,
>>>
>>> Glen
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