4.14. imarith

returns the data of fits file

Fits.imarith(other, operand: str, output=None, override=False) → Self

Performs an arithmetic operation on the Fits object.

Notes

This method can perform operations with numeric values or another Fits object.

  • If other is numeric, each element of the matrix will be processed using that number.

  • If other is another Fits object, element-wise operations will be performed.

Parameters

otherUnion[Self, float, int]

Either a Fits object, a float, or an integer.

operandstr

The operation as a string. One of ["+", "-", "*", "/"].

outputOptional[str]

New path to save the resulting file.

overridebool, optional, default=False

If True, will overwrite the output path if a file already exists.

Returns

Fits

A new Fits object representing the result of the arithmetic operation.

Raises

ValueError

If the given other value is not a Fits, float, or int.

ValueError

If operand is not one of ["+", "-", "*", "/", "**", "^"].

4.14.1. Example:

from myraflib import Fits

fits = Fits.sample()
other = fits.data()

new_fits_1 = fits.imarith(2, "+")
new_fits_2 = fits.imarith(other, "+")

new_fits_3 = fits.imarith(2, "-")
new_fits_4 = fits.imarith(other, "-")

new_fits_5 = fits.imarith(2, "*")
new_fits_6 = fits.imarith(other, "*")

new_fits_7 = fits.imarith(2, "/")
new_fits_8 = fits.imarith(other, "/")

new_fits_9 = fits.imarith(2, "**") # or ^
new_fits_10 = fits.imarith(other, "**") # or ^