See summary, which will produce summaries for most classes of regression object.
For example, from help(glm):
> clotting <- data.frame(
+ u = c(5,10,15,20,30,40,60,80,100),
+ lot1 = c(118,58,42,35,27,25,21,19,18),
+ lot2 = c(69,35,26,21,18,16,13,12,12))
> summary(glm(lot1 ~ log(u), data = clotting, family = Gamma))
Call:
glm(formula = lot1 ~ log(u), family = Gamma, data = clotting)
Deviance Residuals:
Min 1Q Median 3Q Max
-0.04008 -0.03756 -0.02637 0.02905 0.08641
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) -0.0165544 0.0009275 -17.85 4.28e-07 ***
log(u) 0.0153431 0.0004150 36.98 2.75e-09 ***
---
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
(Dispersion parameter for Gamma family taken to be 0.002446059)
Null deviance: 3.51283 on 8 degrees of freedom
Residual deviance: 0.01673 on 7 degrees of freedom
AIC: 37.99
Number of Fisher Scoring iterations: 3
The big win of R over GUI programs is generally that the output from functions is available. So you can do:
> s = summary(glm(lot1 ~ log(u), data = clotting, family = Gamma))
> s$coefficients[1,]
Estimate Std. Error t value Pr(>|t|)
-1.655438e-02 9.275466e-04 -1.784749e+01 4.279149e-07
> s$cov.scaled
(Intercept) log(u)
(Intercept) 8.603427e-07 -3.606457e-07
log(u) -3.606457e-07 1.721915e-07
To get the t's and p's and all that for parameters, or the scaled covariance matrix. But always read the docs for the summary method to make sure you are getting what you think you are getting. Sometimes things in the returned object may be calculated on transformed scales, and presented on untransformed scales when the object is printed.
Note however that what you seem to have shown as an example is an ARIMA model, and there's no nice summary function for arima objects in R:
> m = arima(lh, order = c(1,0,1))
> summary(m)
Length Class Mode
coef 3 -none- numeric
sigma2 1 -none- numeric
var.coef 9 -none- numeric
mask 3 -none- logical
loglik 1 -none- numeric
aic 1 -none- numeric
arma 7 -none- numeric
residuals 48 ts numeric
call 3 -none- call
series 1 -none- character
code 1 -none- numeric
n.cond 1 -none- numeric
model 10 -none- list
this is just the default summary for a list object with those elements. Simply printing it gets you a few things:
See
summary
, which will produce summaries for most classes of regression object.For example, from
help(glm)
:The big win of R over GUI programs is generally that the output from functions is available. So you can do:
To get the t's and p's and all that for parameters, or the scaled covariance matrix. But always read the docs for the summary method to make sure you are getting what you think you are getting. Sometimes things in the returned object may be calculated on transformed scales, and presented on untransformed scales when the object is printed.
Note however that what you seem to have shown as an example is an ARIMA model, and there's no nice
summary
function forarima
objects in R:this is just the default summary for a list object with those elements. Simply printing it gets you a few things: