[R] Odp: URGENT helo re-beggining with R

Petr PIKAL petr.pikal at precheza.cz
Mon Oct 26 09:07:59 CET 2009


not sure that i understand what you want but maybe something like this can 
help you

df<-data.frame(x=1:10, y=5*(1:10)+3+rnorm(10))
abline(fit<-lm(y~x, data=df))
matlines(predict(fit, interval="confidence"))
segments(df$x, df$y, df$x, df$y-resid(fit))


r-help-bounces at r-project.org napsal dne 22.10.2009 22:29:37:

> Hi all,
> I have re-begging to use R.
> I need to using a matrix Y and X with the first row been the name to get 
> ols regression and to plot a two elements graph...on the top
> the scattergraph and the line representing the regressión....below the
> resids...at the same time I want to plot with small lines  representing 
> error or one desviation from the regressión.
> I attach a graph...to get better understood.
> Please if you writte me the code explain how to put names on both plots.
> MAny Thanks¡¡¡
> I saw a document explaining but I can´t find....
> Thanks in advance....
> Imagine you load on a directory (in example mydocuments) the data file 
> that it is an xls or *.txt file.
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> PLEASE do read the posting guide 
> and provide commented, minimal, self-contained, reproducible code.

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