taskGNU Astronomy Utilities - Tasks: task #14419, Using GSL functions for parametric...

 
 

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task #14419: Using GSL functions for parametric interpolation

Submitter:  Mohammad Akhlaghi <makhlaghi>
Submitted:  Thu 23 Mar 2017 12:44:04 PM UTC
 
Should Start On:  Wed 22 Mar 2017 03:00:00 PM UTC Should be Finished on:  Wed 22 Mar 2017 03:00:00 PM UTC
Category:  Libraries Priority:  5 - Normal
Item Group:  Enhancement Status:  Postponed
Privacy:  Public Percent Complete:  0%
Assigned to:  None Open/Closed:  Open
Effort:  0.00

Thu 09 Aug 2018 09:48:21 AM UTC, comment #1: 

GSL's 1D interpolation functions were added in commit 1a9147554515.

We still need to add its 2D interpolation functions.

Mohammad Akhlaghi <makhlaghi>
Project Administrator
Thu 23 Mar 2017 12:44:04 PM UTC, original submission:  

Currently, (in the new lib/interpolated.c) Gnuastro does a non-parametric interpolation (median value of a given number of nearest non-blank values). Non-parametric interpolation is very useful to avoid bad fits and impose the minimal assumptions on the result. So currently it is the preferred/only way in Gnuastro.

But parametric interpolations can also be useful in some contexts and GSL provides a good collection of them.

So it would be good if we could write wrappers for those functions in `lib/interpolate.c' to make it easier to use them with Gnuastro's `gal_data_t'.

Mohammad Akhlaghi <makhlaghi>
Project Administrator

 

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