Use leasqr.m in octave to fit data with error

[higgs]

Thank you very much for your confirmation. 
If it is familiar to you, could you please tell how can I extract
"Chi-squared/ Number of Degree of freedom" from the program. Is there some
option or I have to code it my own?

Best Regards,


Francesco Potorti`-2 wrote:
> 
>>I have a data file looks like,
>>
>>data = [
>> 10 1684.023253675213 142923.5184171736
>> 11 1154.101457435897 79000.44034169338
>> 12 793.8254991880336 44430.77751038589
>> 13 548.7675124786326 24452.17758038106
>>...]
>>
>>where the first column are variable values, the second one are data values
>>and the third one are corresponding errors of data on second column.
>>
>>I've used function leasqr.m to fit these data to some analytic function.
It
>>seems to work well but I'm still wondering that I've done right things
with
>>inputs. My question is:
>>Is it correct to set variable "wt" of the function equal to the inverse of
>>error: wt = 1./data(:,3)
> 
> Yes, it is, as far as I know.
> 
> -- 
> Francesco Potortì (ricercatore)        Voice: +39 050 315 3058 (op.2111)
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