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## Re: Leasqr matrix singular to machine precision

**From**: |
Przemek Klosowski |

**Subject**: |
Re: Leasqr matrix singular to machine precision |

**Date**: |
Mon, 25 Feb 2008 14:25:55 -0500 (EST) |

For the weight on some points I thought of it but as the values I get
are all of the same importance I think fitting with wt = (1) is a
correct guess.
I would caution against it---every target point has its own
experimental, or systematic, or other kind of error, and those errors
are rarely the same for all points. For instance, if the points were
calculated in a counting experiment, i.e. they represent counts per
some unit of time, or are a result of a monte carlo simulation, their
error will likely be proportional to the square root of the value.
p

**Leasqr matrix singular to machine precision**, *Archambault Fabien*, `2008/02/20`
**Re: Leasqr matrix singular to machine precision**, *Archambault Fabien*, `2008/02/20`
**Re: Leasqr matrix singular to machine precision**, *Archambault Fabien*, `2008/02/21`
**Re: Leasqr matrix singular to machine precision**, *Francesco Potorti`*, `2008/02/21`
**Re: Leasqr matrix singular to machine precision**, *Archambault Fabien*, `2008/02/22`
**Re: Leasqr matrix singular to machine precision**, *Francesco Potorti`*, `2008/02/22`
**Re: Leasqr matrix singular to machine precision**, *Archambault Fabien*, `2008/02/22`
**Re: Leasqr matrix singular to machine precision**,
*Przemek Klosowski* **<=**
**Re: Leasqr matrix singular to machine precision**, *Archambault Fabien*, `2008/02/25`
**Re: Leasqr matrix singular to machine precision**, *Dmitri A. Sergatskov*, `2008/02/25`
**Re: Leasqr matrix singular to machine precision**, *Archambault Fabien*, `2008/02/26`
**Re: Leasqr matrix singular to machine precision**, *Doug Stewart*, `2008/02/26`
**Re: Leasqr matrix singular to machine precision**, *Archambault Fabien*, `2008/02/27`
**Re: Leasqr matrix singular to machine precision**, *Francesco Potorti`*, `2008/02/27`
**Re: Leasqr matrix singular to machine precision**, *Rolf Fabian*, `2008/02/27`