Fixing y-axis scale | ThingSpeak Apps | Forum


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Fixing y-axis scale
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December 29, 2017
7:58 pm
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Forum Posts: 2
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November 4, 2017
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I have the Thingspeak plot below working but I want to fix the scale of the y-axis as  0 to 6.

I believe Ylim does not work with "thingspeakplot" and see from previous posts the suggestion to use "plot" instead but just cannot seem to get it to work.

Any help would be appreciated.




[Fence1Data, time] = thingSpeakRead(readChannelID, 'Fields', Fence1FieldID, 'NumPoints', 30, 'ReadKey', readAPIKey);

Fence2Data = thingSpeakRead(readChannelID, 'Fields', Fence2FieldID, 'NumPoints', 30, 'ReadKey', readAPIKey);

thingSpeakPlot(time, [Fence1Data, Fence2Data],'legend',{'Fence1', 'Fence2'});


January 3, 2018
8:55 am

Forum Posts: 222
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March 7, 2017
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You can set the axis to custom values using the pencil icon on your thingSpeak plots. 

If you want to do it in the code, use plot() instead of thingSpeakPlot(). You will be able to use ylim() as you suggested.  For the case you describe above, use ylim([0 6]).

For the plotting, I suggest

plot(time, data1,time,data2);

and then see the documentation for legend to add a legend.

Let us know if that works.

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