Displaying 2 results from an estimated 2 matches for "salic".
Did you mean:
saic
2010 May 26
1
validation logistic regression
...I did validation for prediction by logistic regression according to following:
validationsize <- 23
set.seed(1)
random<-runif(123)
order(random)
nrprofilesinsample<-sort(order(random)[1:100])
profilesample <- data[nrprofilesinsample,]
profilevalidation <- data[-nrprofilesinsample,]
salich<-profilesample$SALIC.H.1
salic.lr<-glm(salich~wetnessindex, profilesample, family=binomial('logit'))
summary(salic.lr)
salichpred<-predict(salic.lr, newdata=profilevalidation)
expsalichpred<-exp(salichpred)
salichprediction<-(expsalichpred/(1+expsalichpred))
So,
table(sal...
2010 Jul 21
0
Piecewise regression using lme()
Hi everyone,
I'm trying to fit a of piecewise regression model on a time series. The idea
is to divide the series into segments and then to apply linear regression
models on each segment but in a "global way" and considering
heteroskedasticity between the segments. For example, I build a time series
y with 3 segments:
segment1=1:20+rnorm(20,0,2)
segment2=20-2*1:30+rnorm(30,0,5)