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 How to reduce data irregularly?		  New Topic  Reply to Topic
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mohamed.ibrahim

Germany
3 Posts
Posted - 09/17/2021 :  08:02:24 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Hi All,

I have a plot consists of 10000 points that I need to reduce to upload it on an instrument which accepts only 200 points. The plot consists of three parts: first a straight line, a curve and again a straight line. I want to reduce the points like getting a small number of points for both lines and get more points for the curve. How can I do that?

YimingChen

1609 Posts
Posted - 09/17/2021 :  09:35:27 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Can you try the tool menu Analysis->Signal Processing->Decimation ? You can select range on the graph with Selection On Active Plot, and then run the tool for different data ranges.

James
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mohamed.ibrahim

Germany
3 Posts
Posted - 09/17/2021 :  10:58:27 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
I have no such available tool. I guess it is only available in Pro versions.
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snowli

USA
1386 Posts
Posted - 09/17/2021 :  11:16:08 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
There are also reduce options under Analysis: Data Manipulation:

It works for sub-range of plots. So you can do reduction 3 times in 3 sub ranges and then stitch them together.

Thanks, Snow
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