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Neena1695
Canada
117 Posts |
 Posted - 07/21/2021 : 3:57:37 PM
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Origin Ver: Origin Pro 2021
How to color map a subset of plotted data?
Many thanks,
Neena |
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snowli
USA
1411 Posts |
Posted - 07/21/2021 : 4:00:41 PM
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Sorry, maybe i don't fully understand your question.
Do u mean for every 200 points of plot, u want to color it based on info. in column D.
If so, you may have to make a new column with color for each row of value in column A&B.
Maybe you can use Cluster gadget with line plot.
Select the subrange u want to color. Click Create Categories button. set Category=2. Check color it by category.
Repeat it for all subranges u want to color.
Thanks, Snow |
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Neena1695
Canada
117 Posts |
Posted - 07/21/2021 : 4:54:42 PM
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Hi Snow,
Sorry, let me clarify.
I do not have values in Column D (color map category) corresponding to every row in column A and B.
Is this possible to achieve color mapping this way?
Thanks,
Neena |
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snowli
USA
1411 Posts |
Posted - 07/21/2021 : 4:57:43 PM
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That's why i am wondering if u can use Cluster gadget on graph for it.
Once u plot graph, u can use cluster gadget to color a subset of data region.
It seems only some subregion in D is set to 5. So u can use cluster gadget to select the region and color it differently from other parts.
Thanks, Snow |
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Neena1695
Canada
117 Posts |
Posted - 07/21/2021 : 5:13:38 PM
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Hi Snow,
I have 1500 data points to color in that plot; selecting those regions would be time consuming. Any other suggestion?
Thank you again,
Neena |
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snowli
USA
1411 Posts |
Posted - 07/21/2021 : 5:21:11 PM
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Do you mind sharing the opju so i can see how many regions u want to color differently.
Thanks, Snow |
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Neena1695
Canada
117 Posts |
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snowli
USA
1411 Posts |
Posted - 07/22/2021 : 09:53:50 AM
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Hello,
Please try the attached opju
https://my.originlab.com/ftp/forum_and_kbase/Images/Nterm1_mod.opju
Basically we added formula in Column E and F to calculate the range value in col(E), then use table() to read its corresponding color code and put it to column F. color code in F matches the corresponding x & y in column A&B.
BTW, not sure why you set column D as categorical, i turn it off so it's treated as number.
Thanks, Snow |
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Neena1695
Canada
117 Posts |
Posted - 07/22/2021 : 3:30:18 PM
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| Thank you Snow! Origin is so powerful! |
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Topic |
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Color map a subset of plotted data