Displaying 3 results from an estimated 3 matches for "schoolyears".
2006 Jun 17
2
problem with select_date
In my form I have these items:
<%= select_year Date.today,
:start_year => Schoolyear.get_startdate.year,
:end_year => Schoolyear.get_enddate.year %>
<%= select_month Date.today.month %>
No matter what I do, in my controller I can''t seem to access the
selected year and
month.
I have tried params[:month].to_s and also
2012 Sep 25
3
Plotting of regsubsets adjr2 values not correct
Hi,
I want to make model selection with regsubsets. My code is:
a<-regsubsets(Gesamt ~ CommunistSocialist + CountrySize + GNI + Lifeexp +
Schoolyears + ExpMilitary + Mortality +
PopPoverty + PopTotal + ExpEdu + ExpHealth, data=olympiadaten, nbest=2)
summary(a)
plot(a,scale="adjr2")
(output attached)
The problem is now, that I want to fit the best model again "manually" and
have a look at it, but the value of the adjusted...
2012 Sep 25
2
Regsubsets model selection
Hi,
I have 12 independent variables and one dependent variable. Now I want to
select the best adj. R squared model by using the regsubsets command, so I
code:
> plot(regsubsets(Gesamt ~ CommunistSocialist + CountrySize + GNI + Lifeexp
+ Schoolyears + ExpMilitary + Mortality +
+ PopPoverty + PopTotal + ExpEdu + ExpHealth, data=olympiadaten, nbest=1,
nvmax=12), scale='adjr2')
Then I get the picture I attached. The problem is, that the best model has
an adjusted R squard of 0.49. But if I regress e.g. my y on only the
variable PopTota...