[R] How to display full name for the coefficients/factors in summary()?

[Jen-Chien Chang]

Hi,

I am wondering if there is a way to display the full anme of the 
regression coeffients/factors in the summary?

Suppose I have a bogus data set using weekday as factor which has 7 levels 
such as:

mydata <- sample(364)
wk <- rep(1:7, 52)
weekday <- 
factor(wk,1:7,c("Mon","Tue","Wed","Thu","Fri","Sat","Sun"),ordered=T)
test <- data.frame(mydata,weekday)
lm.test <- lm(mydata ~ weekday, test)
summary(lm.test)
Call:
lm(formula = mydata ~ weekday)

Residuals:
      Min       1Q   Median       3Q      Max
-205.615  -93.486   -2.212   88.851  199.423

Coefficients:
             Estimate Std. Error t value Pr(>|t|)
(Intercept) 182.5000     5.5137  33.100   <2e-16 ***
weekday.L   -27.0426    14.5878  -1.854   0.0646 .
weekday.Q    -0.9211    14.5878  -0.063   0.9497
weekday.C    -1.6565    14.5878  -0.114   0.9097
weekday^4   -16.6449    14.5878  -1.141   0.2546
weekday^5     9.9436    14.5878   0.682   0.4959
weekday^6   -14.3971    14.5878  -0.987   0.3243
---
Signif. codes:  0 *** 0.001 ** 0.01 * 0.05 . 0.1   1

Residual standard error: 105.2 on 357 degrees of freedom
Multiple R-squared: 0.01705,	Adjusted R-squared: 0.0005341
F-statistic: 1.032 on 6 and 357 DF,  p-value: 0.4039 
-----------------------------------

Why is the name for the regression coeffients/factors display as 
weekday.L, weekday.Q, ....weekday^6 instead of Tue, Wed, and such? Is 
there a simple way of changing options to fix it?

Please advise and many thanks for your help!

Jack Chang