Displaying 3 results from an estimated 3 matches for "lim_ha".
2010 Oct 03
2
How to programme R to randomly replace some X values with Outliers
Dear experts,
I am a beginner of R.
I'm looking for experts to guide me how to do programming in R in order to
randomly replace 5 observations in X explanatory variable with outliers drawn
from U(15,20) in sample size n=100. The replacement subject to y < 15.
The ultimate goal of my study is to compare the std of y with and without the
presence of outliers based on average of 1000
2010 Oct 01
1
R-Square for Robust Regression Model
May I know how to find the R-squared for robust regression model?
Thank you.
Hock Ann
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2012 Sep 17
2
Problem with Stationary Bootstrap
Dear R experts,
I'm running the following stationary bootstrap programming to find the parameters estimate of a linear model:
X<-runif(10,0,10)
Y<-2+3*X
a<-data.frame(X,Y)
coef<-function(fit){
fit <- lm(Y~X,data=a)
return(coef(fit))
}
result<- tsboot(a,statistic=coef(fit),R = 10,n.sim = NROW(a),sim = "geom",orig.t = TRUE)
Unfortunately, I got this