R help - Feb 2009 - controlling number of decimals printed in anova tables?

For glm() models, I often find both the print() and summary() method 
disappointing if my main interest
is seeing how well a given model fits. A basic display would just 
compare the null model to to my model.

I wrote the function below based on code in some package.
How can I make it so that the df in the table are printed with 0 decimals?

# display basic model fit statistics for a glm object

modelFit.glm <-
function (x, digits = max(3, getOption("digits") - 3), ...)
{
dev <- c(x$null.deviance, x$deviance )
df <- c(x$df.null, x$df.residual)
table <- data.frame(dev, df, c(NA, 1-pchisq(x$deviance, x$df.residual)),
row.names=c("Null model", "Model"))

dimnames(table) <- list(c("Null model", "Model"),
c("Deviance", "df",
"Pr(>Chi^2)"))
title <- paste("Analysis of Deviance Table", "\n\tFormula:
",
deparse(x$formula), "\n")
structure(table, heading = title, class = c("anova",
"data.frame"))

}

berkeley <- as.data.frame(UCBAdmissions)
berk.mod2 <- glm(Freq ~ Dept * (Gender+Admit), data=berkeley, 
family="poisson")

 > modelFit.glm(berk.mod2)
Analysis of Deviance Table
Formula: Freq ~ Dept * (Gender + Admit)

Deviance df Pr(>Chi^2)
Null model 2650.10 23.00
Model 21.74 6.00 0.001352 **
---
Signif. codes: 0 ?***? 0.001 ?**? 0.01 ?*? 0.05 ?.? 0.1 ? ? 1
 >


-- 
Michael Friendly     Email: friendly AT yorku DOT ca 
Professor, Psychology Dept.
York University      Voice: 416 736-5115 x66249 Fax: 416 736-5814
4700 Keele Street    http://www.math.yorku.ca/SCS/friendly.html
Toronto, ONT  M3J 1P3 CANADA

Try this:

On Mon, Feb 16, 2009 at 9:02 AM, Michael Friendly <friendly at yorku.ca>
wrote:
> For glm() models, I often find both the print() and summary() method
> disappointing if my main interest
> is seeing how well a given model fits. A basic display would just compare
> the null model to to my model.
>
> I wrote the function below based on code in some package.
> How can I make it so that the df in the table are printed with 0 decimals?
Try this:
df <- as.integer(c(x$df.null, x$df.residual))

Or safer:

df <- as.integer(round(...))

On Mon, Feb 16, 2009 at 10:54 AM, Gabor Grothendieck
<ggrothendieck at gmail.com> wrote:
> Try this:
>
> On Mon, Feb 16, 2009 at 9:02 AM, Michael Friendly <friendly at
yorku.ca> wrote:
>> For glm() models, I often find both the print() and summary() method
>> disappointing if my main interest
>> is seeing how well a given model fits. A basic display would just
compare
>> the null model to to my model.
>>
>> I wrote the function below based on code in some package.
>> How can I make it so that the df in the table are printed with 0
decimals?
>
> Try this:
> df <- as.integer(c(x$df.null, x$df.residual))
>

Gabor Grothendieck <ggrothendieck <at> gmail.com> writes:
> 
> Or safer:
> 
> df <- as.integer(round(...))
> 
Did you try? I believe it is a problem of printCoefmat that has quite
a few options for special column, but none for df. Ask Martin M?chler.

Dieter