Displaying 3 results from an estimated 3 matches for "ctotale".
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totale
2010 Dec 30
3
drop observations
Hi,
I want to drop observations with value 0 from my data.frame "dta" for each
of the two variables "c01" and "ctotale". How can I do that?
Thanks
Charlène Lisa Cosandier
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2011 Aug 02
1
Using Function
Hi,
I have some simple statistics to calculate for a large
number of variables.
I created a simple function to apply to variables.
I would like the variable name to be placed automatically.
I tried the following function but is not working.
desc = function(x){
media = mean(x, na.rm=T)
desvio = sd(x, na.rm=T)
cv = desvio/media*100
2007 Nov 15
0
Package to make stepwise model selection using F or Chisq test
Hi,
I looking for a method that use F or Chisq test instead of AIC in a stepwise
modelo selection.
I try the grasp package using the grasp.step.anova, but It dont work.
> library(grasp)
Carregando pacotes exigidos: gam
Carregando pacotes exigidos: splines
Carregando pacotes exigidos: mda
Carregando pacotes exigidos: class
> data(anorexia,package="MASS")
>
> m1 <-