matlab.io.fits.deleteCol

Delete column from table

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Syntax

matlab.io.fits.deleteCol(fptr,colnum)

Description

matlab.io.fits.deleteCol(fptr,colnum) deletes a column from an ASCII or binary table.

Examples

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Delete Column from Table

Open Live Script

Make a copy of a sample FITS file and examine the structure of a table in the file. The table has 11 rows and 13 columns.

import matlab.io.*
copyfile("tst0012.fits","myfile.fits")
fitsdisp("myfile.fits",Index=2,Mode="min")

HDU 2:  BINARY_TBL [ 11 13 ]

Delete the third column from the table. The table now has 11 rows and 12 columns.

fptr = fits.openFile("myfile.fits","readwrite");
fits.movAbsHDU(fptr,2);
fits.deleteCol(fptr,3)
fits.closeFile(fptr)
fitsdisp("myfile.fits",Index=2,Mode="min")

HDU 2:  BINARY_TBL [ 11 12 ]

Delete the new file myfile.fits.

delete myfile.fits

Tips

This function corresponds to the fits_delete_col (ffdcol) function in the CFITSIO library C API.
To use this function, you must be familiar with the CFITSIO C interface. You can access the CFITSIO documentation at the CFITSIO website.

Extended Capabilities

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Thread-Based Environment
Run code in the background using MATLAB® `backgroundPool` or accelerate code with Parallel Computing Toolbox™ `ThreadPool`. (since R2026a)

The matlab.io.fits.deleteCol function fully supports thread-based environments. For more information, see Run MATLAB Functions in Thread-Based Environment.

Version History