GNU Astronomy Utilities - Tasks: task #15570, Operator to group rows with...
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task #15570: Operator to group rows with special scaling
Submitter: | Mohammad Akhlaghi <makhlaghi> | ||
Submitted: | Fri 06 Mar 2020 12:00:08 AM UTC | ||
Should Start On: | Thu 05 Mar 2020 12:00:00 AM UTC | Should be Finished on: | Thu 05 Mar 2020 12:00:00 AM UTC |
Category: | Table | Priority: | 5 - Normal |
Item Group: | Enhancement | Status: | None |
Privacy: | Public | Assigned to: | None |
Percent Complete: | 0% | Open/Closed: | Open |
Effort: | 0.00 |
Wed 29 Mar 2023 05:01:50 PM UTC, comment #3: |
Mohammad Akhlaghi <makhlaghi> |
Tue 28 Mar 2023 02:37:24 PM UTC, comment #2: Respect Mohammad,
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LI Junnan <junnan> |
Tue 28 Mar 2023 02:30:58 PM UTC, comment #1: I am currently working on this issues. I wonder whether the user have to provide seed point for 1d veronoi? Or we need to generate seed points randomly. |
LI Junnan <junnan> |
Fri 06 Mar 2020 12:00:08 AM UTC, original submission:
One useful operation with tables is to group rows based on some criteria/scale in each column.
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Mohammad Akhlaghi <makhlaghi> |
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Corresponding source code
Hi Li, thanks for your interest in this.
We don't have such a function yet in Gnuastro. But if you want to see how the Table program interprets the various row and column selection operations (see the Operation precedence page in the manual for the list of existing operations), see the code in 'bin/table/table.c'.
For the time being, you can use a simpler kind of grouping (for example log-scale). The Voronoi example may be a little too complex to start with ;-).