May be you are also not familiar with statistic. the solution of 
    min \sum_{i=1}^{n} (y_{i}-b)^{2} is the mean. So the solution is  
b<-mean(y)
  
Justin BEM
Elève Ingénieur Statisticien Economiste
BP 294 Yaoundé.
Tél (00237)9597295.

----- Message d'origine ----
De : Kåre Edvardsen <ked@nilu.no>
À : R-help <r-help@stat.math.ethz.ch>
Envoyé le : Vendredi, 8 Décembre 2006, 13h20mn 10s
Objet : [R] A smal fitting problem...

Dear R-helpers,

I'm for sure not familiar with R, but it seem like a nice sofware tool,
so I've decided to try using it.

Here is my problem I just can't figure out:

I'd like to do least square fit of a straight horizontal (a = 0) line y
= ax + b through some data points

x = (3,4,5,6,7,8)

y = (0.62, 0.99, 0.83, 0.69, 0.76, 0.82)

How would i find b?????

All the best,
Ked

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