Home > matutils > weighted_mean.m

weighted_mean

PURPOSE

MI Jul 2013

SYNOPSIS

function [wmean error_wm] = weighted_mean( x, errors )

DESCRIPTION

 MI Jul 2013
weighted_mean [ weighted_mean, weighted_mean error] = untitled( x, errors )
   gives weighted mean and error on weighted mean where weights = 1/errors^2

CROSS-REFERENCE INFORMATION

This function calls:

This function is called by:

getNoiseDiodeTemps %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
noiseWrapper %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

SOURCE CODE

0001 function [wmean error_wm] = weighted_mean( x, errors )
0002 % MI Jul 2013
0003 %weighted_mean [ weighted_mean, weighted_mean error] = untitled( x, errors )
0004 %   gives weighted mean and error on weighted mean where weights = 1/errors^2
0005 
0006 weights = 1./(errors).^2;
0007 
0008 wmean = sum(weights.*x)/sum(weights);
0009 
0010 error_wm = 1./sqrt(sum(weights));
0011 
0012 end
0013