matrixAutoCorrelation returns `NaN` in some places

[targos]

Code:

import { matrixAutoCorrelation } from 'ml-spectra-processing';

matrixAutoCorrelation(data)

Data

[[0,3,2,7,19,28,14,0,0,0,0,0,1,0,0,0,0,42,18,42,4,286,14,0,0,2,1,0,0,12,5,16,22,0,1,0,0,0,7,0,6,2,0,4,4,2,0,2,0,9,0,1,13,0,0,0,0,2,26,3,1,0,0,0,0,2,9,1,2,0,0,0,0,0,23,2,0,3,4,2,1,0,0,1,1,0,0,2,0,0,0,2,0,0,3,1,1,0,0,2,2,0,0,0,0,0,2,6,0,5,0,6,4,0,0,0,2,0,4,0,3,0,1,0,0],[0,7,0,0,19,33,18,4,1,0,0,0,0,0,0,1,0,47,19,38,11,319,12,0,0,0,1,0,0,12,4,21,22,0,3,0,0,1,4,0,6,1,0,4,4,0,0,4,0,11,0,2,18,1,0,0,0,2,34,5,2,0,0,0,0,4,12,1,3,0,0,1,1,0,30,3,0,3,4,2,0,0,0,0,3,0,0,3,0,0,0,2,0,0,2,1,0,0,0,0,1,0,1,0,0,0,2,4,0,6,0,5,5,0,0,0,3,0,4,0,0,0,2,0,0],[0,11,0,0,20,38,18,8,2,0,0,2,0,0,0,2,0,55,23,36,16,365,9,0,0,0,2,0,1,9,4,28,22,0,6,0,0,0,2,0,4,0,0,3,5,0,0,5,0,11,0,1,23,4,0,1,0,3,42,6,2,1,0,0,0,6,16,1,2,0,0,3,2,0,37,4,0,1,2,2,0,0,0,0,3,0,1,2,0,0,0,1,2,0,1,0,0,0,0,0,0,0,2,0,0,0,2,2,0,6,0,3,6,0,0,0,3,0,4,0,0,0,3,0,0],[0,13,0,0,21,42,14,10,4,0,0,4,0,0,0,3,0,65,29,36,19,419,8,0,0,0,3,0,2,5,3,36,20,0,7,0,0,0,0,1,1,0,0,2,6,0,0,5,0,9,0,0,29,6,1,2,0,5,52,6,2,2,0,0,0,7,19,0,2,0,0,5,2,0,41,6,0,0,1,2,0,0,0,0,3,0,2,1,0,0,0,0,4,0,0,0,0,0,0,0,0,0,3,0,0,0,2,0,0,5,0,1,6,0,0,0,3,0,3,1,0,0,3,0,0],[0,13,0,18,20,46,6,13,6,0,0,6,0,0,0,2,0,74,34,37,21,473,7,0,0,0,5,2,3,0,3,45,17,5,6,0,0,0,0,6,0,1,0,3,7,0,0,3,0,5,0,0,39,7,3,2,0,6,63,6,1,2,0,0,0,8,25,0,1,0,0,7,2,0,43,9,0,0,0,2,0,0,0,0,2,0,4,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,2,0,0,0,1,0,0,3,0,0,5,0,0,0,2,0,3,2,0,0,3,0,0],[3,13,0,43,18,51,0,17,6,0,0,8,0,0,0,0,0,81,38,39,24,523,6,1,1,0,7,5,3,0,3,54,16,10,3,0,0,0,0,11,0,4,0,4,8,0,0,1,0,2,0,0,54,6,4,3,0,6,74,4,0,2,0,0,0,10,34,0,0,0,1,11,1,0,45,11,0,0,0,2,0,0,0,0,1,0,5,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,3,3,0,0,1,0,3,4,0,0,2,0,0],[4,14,0,65,15,57,0,20,4,0,0,9,0,0,0,0,3,87,41,42,26,565,5,3,2,1,6,8,3,0,4,63,16,13,0,1,0,0,0,14,0,8,0,5,8,0,1,0,0,0,2,0,74,4,4,3,2,5,85,1,0,1,0,0,0,13,44,0,0,0,1,14,1,0,49,12,0,0,0,1,0,0,0,0,1,0,4,0,0,0,0,0,5,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,3,5,1,0,0,1,4,5,0,0,1,0,0],[3,16,0,77,13,63,0,21,2,0,0,9,0,0,0,0,5,91,44,45,27,597,3,4,2,3,5,9,2,0,5,72,17,13,0,1,0,1,0,16,0,12,0,6,7,0,1,0,0,0,5,2,98,2,3,3,5,3,94,0,1,0,0,0,0,16,56,0,0,0,1,17,2,0,55,11,0,0,0,0,0,0,0,0,2,0,3,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,7,2,0,0,2,5,6,0,0,0,0,0],[0,20,9,76,13,68,5,17,0,0,0,9,0,0,0,1,5,94,48,49,26,616,2,5,2,3,2,9,2,0,4,79,17,12,0,1,2,3,1,15,0,16,0,6,5,0,1,1,0,0,6,3,120,2,1,4,8,2,100,0,1,0,1,1,0,18,70,0,0,0,0,18,2,0,61,8,0,1,0,0,0,0,0,0,3,0,3,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,4,7,3,0,0,3,5,7,0,0,0,0,0],[0,23,25,66,13,71,11,11,0,0,0,9,0,4,0,3,3,97,51,49,23,618,3,6,1,3,0,9,2,3,2,83,16,10,0,1,3,5,4,14,0,18,0,7,3,0,0,1,0,0,4,3,139,3,0,4,9,2,102,0,2,0,3,5,3,20,84,0,0,0,0,18,3,0,65,6,0,2,0,0,0,1,0,0,4,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,4,6,3,0,0,3,5,7,2,0,0,0,0],[0,27,35,50,13,71,16,4,0,0,0,9,0,8,2,4,1,98,53,47,21,606,5,5,1,3,0,10,1,7,0,82,14,9,0,1,4,6,7,13,0,18,0,7,1,0,0,0,0,0,2,2,154,7,0,4,8,3,101,0,1,0,3,9,5,23,99,2,0,0,0,17,3,1,66,5,1,3,0,0,0,2,0,0,4,1,2,0,2,0,0,0,0,0,0,0,0,0,0,1,0,3,0,0,0,0,0,0,0,0,0,0,4,4,3,0,0,3,5,6,3,0,0,0,0],[2,30,38,35,13,68,17,1,0,0,0,9,0,13,3,4,0,97,50,42,20,578,5,4,1,3,0,11,0,10,0,77,11,9,0,1,6,5,9,13,0,17,0,6,1,0,0,0,1,0,0,1,168,11,0,3,7,4,96,0,0,0,3,12,7,27,112,4,0,0,0,15,2,2,63,4,2,2,0,0,0,3,0,0,2,2,2,0,3,0,0,0,0,0,0,0,0,0,0,2,0,3,0,0,0,0,0,0,0,0,0,0,4,3,2,0,0,2,4,4,4,0,0,0,0],[3,30,37,23,13,64,15,2,0,0,0,8,0,17,4,4,0,93,45,37,19,534,3,3,2,4,2,11,0,10,0,69,9,8,0,1,8,2,10,13,2,14,1,4,1,0,0,0,1,1,0,1,182,14,0,3,6,4,88,1,0,0,1,14,8,30,123,6,0,0,0,13,2,3,58,3,2,1,0,0,0,3,0,0,1,3,1,0,4,0,0,0,1,0,0,0,0,0,0,2,0,3,0,0,0,0,0,0,0,0,0,0,4,1,1,0,0,1,3,2,3,0,0,0,0],[4,28,32,17,12,59,8,6,0,0,0,9,2,17,5,3,0,83,38,32,16,478,1,2,2,6,3,11,0,7,0,59,6,7,0,1,9,0,9,14,3,12,2,2,2,0,0,0,1,2,0,0,195,15,0,3,6,2,79,3,0,0,0,15,8,32,131,7,0,0,0,11,2,3,52,2,2,0,2,0,0,3,0,1,1,2,0,0,4,0,0,0,2,0,0,0,0,0,0,2,0,2,0,1,0,0,0,0,0,0,0,0,5,0,0,0,0,0,1,1,2,0,0,0,0],[4,22,23,14,11,51,0,8,0,0,1,9,3,14,6,1,0,71,32,29,12,415,0,3,2,8,3,10,1,4,0,50,2,5,0,1,9,0,7,16,4,9,2,0,1,0,0,0,1,2,1,0,201,14,0,3,6,1,70,4,0,0,0,16,6,33,133,9,0,0,0,9,3,3,45,1,2,0,5,0,0,2,0,3,1,1,0,1,5,0,0,0,3,0,0,0,0,0,0,1,0,1,0,1,0,0,1,0,0,0,0,0,4,0,0,0,0,0,0,0,3,0,0,0,0],[3,15,10,14,7,42,0,7,0,0,2,8,3,10,5,0,0,56,26,25,7,350,0,3,2,8,2,8,3,1,0,41,0,4,0,3,7,0,5,17,5,7,0,0,1,0,2,0,1,1,3,0,199,13,0,3,5,0,61,4,0,0,0,18,3,33,129,10,0,0,0,9,3,2,37,1,2,0,7,0,0,1,0,4,2,0,0,2,6,0,0,0,3,0,1,0,0,0,0,0,0,0,0,3,0,0,5,0,0,0,0,0,1,0,0,0,0,0,0,0,4,0,0,0,0],[2,9,0,12,0,30,0,3,0,0,3,6,1,5,4,0,0,40,21,20,3,290,0,2,2,9,1,6,4,0,0,32,0,3,0,4,6,0,3,17,4,7,0,0,0,0,3,0,0,0,5,0,189,13,0,2,2,0,51,4,0,0,0,18,0,34,121,10,0,0,0,10,3,1,29,3,3,0,7,0,0,0,0,3,2,0,0,2,7,0,0,0,3,0,2,0,0,0,0,0,0,0,0,4,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0],[2,4,0,7,0,18,0,0,0,0,3,4,0,2,2,0,0,26,17,13,2,235,0,1,2,9,1,4,5,0,0,21,0,2,0,4,4,0,2,16,4,9,0,1,0,1,3,0,0,0,6,0,174,14,0,2,0,0,41,3,0,0,0,18,0,36,110,9,0,0,0,10,2,0,24,4,3,0,7,0,0,0,0,2,3,0,0,2,8,0,0,0,3,0,3,0,0,0,0,0,0,0,0,5,0,0,9,0,0,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,0],[3,2,0,1,0,7,0,0,0,0,3,1,0,0,1,1,0,14,12,5,2,185,0,1,3,10,1,3,5,0,0,11,0,1,0,2,3,0,1,14,4,12,0,2,0,3,1,0,0,0,5,0,159,15,1,3,0,0,31,2,0,0,1,16,0,36,99,8,0,0,1,9,0,0,20,5,3,0,5,0,0,0,0,0,3,0,0,1,9,0,0,0,2,0,3,0,0,0,0,0,0,0,0,5,0,1,7,1,0,0,0,2,0,0,0,0,0,0,0,0,4,0,0,0,0],[3,0,0,0,0,0,0,0,0,1,2,0,1,0,0,3,0,4,7,0,4,140,0,2,2,10,1,3,4,0,0,0,0,0,0,0,4,0,1,13,4,15,0,1,1,4,0,0,0,0,4,0,145,14,2,3,0,0,22,0,0,0,2,14,0,35,86,6,0,0,2,6,0,0,17,4,1,0,3,0,0,0,0,0,1,0,0,1,8,0,0,0,2,0,3,0,0,0,0,0,0,0,0,5,0,2,5,3,2,0,0,3,1,0,0,0,0,0,1,0,2,0,0,0,0],[3,0,0,0,0,0,0,0,0,2,1,0,4,0,0,6,0,0,1,0,4,101,0,3,1,9,0,2,3,0,0,0,0,0,0,0,5,0,1,12,5,16,1,0,2,4,0,0,0,0,1,0,128,11,3,4,0,0,16,0,0,0,4,13,1,30,74,4,0,0,2,3,0,0,16,2,0,0,1,0,0,0,0,0,0,0,0,1,5,0,0,0,1,0,2,0,0,0,0,0,0,0,0,4,0,3,1,6,3,0,0,3,5,0,0,0,0,0,2,0,0,0,0,0,0],[2,0,0,0,0,0,0,0,2,3,0,0,6,0,1,7,0,0,0,0,2,67,0,2,0,7,0,1,2,0,0,0,0,0,0,0,7,1,1,11,4,14,4,0,2,3,0,0,0,0,0,0,109,7,3,3,0,0,11,0,0,0,4,12,3,24,60,2,0,0,2,0,0,0,14,0,0,0,1,0,0,0,0,1,0,0,0,3,3,0,0,0,1,0,1,0,0,0,0,0,0,0,0,3,1,4,0,7,3,0,0,4,9,0,0,0,0,0,4,0,0,0,0,1,0],[1,0,0,2,0,0,0,0,3,3,0,0,6,0,2,6,1,0,0,0,0,42,2,1,0,4,0,0,1,0,0,0,0,0,0,0,7,1,0,9,5,9,6,0,1,2,0,0,0,0,0,0,87,3,2,1,0,0,7,0,0,0,4,12,3,18,47,1,0,0,1,0,0,0,12,0,0,0,0,0,0,0,0,4,0,0,0,4,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,2,2,3,0,8,2,1,0,4,10,0,0,0,0,0,6,0,0,0,0,2,0],[0,0,0,4,0,0,0,0,4,3,0,1,4,0,3,4,2,0,0,0,0,26,4,1,0,1,0,0,0,0,1,0,0,0,0,0,4,1,0,5,7,3,7,0,0,2,0,2,0,0,0,0,68,0,1,0,0,0,5,0,0,0,2,9,1,14,34,1,0,0,0,0,0,0,12,0,0,0,1,0,0,0,0,4,0,0,0,4,0,1,2,0,0,1,0,0,0,0,0,0,0,0,0,1,3,3,0,7,1,2,0,6,9,0,0,0,0,0,8,0,0,0,0,3,0],[0,0,0,2,0,0,5,0,4,2,0,2,0,0,3,1,4,0,0,0,0,16,5,1,0,0,0,0,0,0,3,0,0,0,0,0,0,1,0,1,11,0,6,0,0,1,0,4,0,0,0,1,53,0,1,0,0,0,3,0,0,0,1,6,0,10,24,0,0,0,0,0,0,0,11,0,0,0,1,0,0,0,0,4,0,0,0,4,0,2,3,0,0,2,0,0,0,0,0,0,0,0,0,0,3,3,0,6,2,3,0,6,6,0,0,0,0,0,8,0,0,0,0,3,0],[0,0,0,2,0,0,12,0,3,1,0,2,0,0,2,0,4,0,0,0,0,9,5,3,0,0,0,0,0,0,5,0,0,0,0,0,0,0,0,0,15,0,5,0,0,1,2,6,0,0,0,0,42,0,0,0,0,0,2,0,0,0,0,3,0,6,16,0,0,1,0,0,0,0,10,0,0,0,2,0,0,0,1,3,0,0,0,4,0,3,3,0,0,3,0,0,0,0,0,0,0,0,0,0,3,4,0,4,2,4,0,5,4,0,0,0,0,0,7,0,0,0,0,3,0],[0,0,0,3,0,0,13,0,2,0,0,2,0,0,0,0,4,0,0,0,0,4,4,4,0,0,0,0,0,0,5,0,0,0,0,0,0,0,0,0,16,0,4,0,0,1,3,6,0,1,0,0,33,0,0,0,0,0,1,0,0,0,0,1,0,2,13,0,0,2,0,0,0,0,7,0,0,1,3,0,0,0,1,2,0,0,0,3,0,3,3,0,0,3,0,0,0,0,0,0,1,0,0,0,2,6,0,2,3,3,1,3,3,0,0,0,0,0,6,0,0,0,0,2,0],[0,0,0,5,0,0,8,0,1,0,0,1,0,0,0,0,3,0,0,0,0,1,3,4,0,0,0,0,0,0,4,0,0,0,0,1,0,0,0,0,14,0,3,0,0,0,4,4,0,1,0,0,24,0,0,0,0,0,0,0,0,0,0,0,0,0,11,0,0,3,0,0,0,0,2,0,0,1,3,0,0,0,1,2,0,0,0,1,0,3,2,0,0,3,0,1,0,0,1,0,2,0,0,0,1,6,0,0,3,3,2,0,2,0,0,0,0,0,5,0,0,0,0,1,1]]

[targos]

This happens because some columns are constant (all 0). This makes xCorrelation return NaN