Re: [R] how to the p-values or t-values from the lm's results

From: Dimitrios Rizopoulos <Dimitris.Rizopoulos_at_med.kuleuven.be>
Date: Sun 20 Aug 2006 - 18:34:22 EST

try the following:

data <- data.frame(matrix(rnorm(900), ncol = 9)) names(data) <- c("y", paste("x", 1:8, sep = "")) logr <- lm(y ~ . - 1, data)
a <- summary(logr)

coef(a)
coef(a)[, 3:4]
coef(a)[, "t value"]
coef(a)[, "Pr(>|t|)"]


I hope it helps.

Best,
Dimitris



Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium

Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
      http://www.student.kuleuven.be/~m0390867/dimitris.htm


Quoting zhijie zhang <epistat@gmail.com>:

> Dear friends,
> After running the lm() model, we can get summary resluts like the
> following:
> Coefficients:
> Estimate Std. Error t value Pr(>|t|)
> x1 0.11562 0.10994 1.052 0.2957
> x2 -0.13879 0.09674 -1.435 0.1548
> x3 0.01051 0.09862 0.107 0.9153
> x4 0.14183 0.08471 1.674 0.0975 .
> x5 0.18995 0.10482 1.812 0.0732 .
> x6 0.24832 0.10059 2.469 0.0154 *
> x7 -0.04425 0.11008 -0.402 0.6886
> x8 0.05146 0.10290 0.500 0.6182
> -------------------------------------------------------------
> **the program maybe :
> data<-matrix(rnorm(900),ncol=9) #9variables,1dependent var,8independent
> data<-data.frame(data)
> names(data)<-c('y','x1','x2','x3','x4','x5','x6','x7','x8')
> logr<-lm(y~x1+x2+x3+x4+x5+x6+x7+x8-1,data)
> a<-summary(logr)
> ------------------------------------------------------------------------------------------------------------------------
> Could i extract the p-values or t-values from the a$Coefficients, i searched
> the attributes(a), but don't find the options,how to do that?
> Thanks very much!
>
> --
> Kind Regards,
> Zhi Jie,Zhang ,
>
> [[alternative HTML version deleted]]
>
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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Sun Aug 20 18:40:23 2006

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