LOESS/LOWESS Algorithm

https://www.weisang.com/en/documentation/loessandlowessalgorithm_en/

Lagrange Multipliers

We can connect Lagrange to Ridge and Lasso Regression.

http://www.math.harvard.edu/archive/21a_spring_09/PDF/11-08-Lagrange-Multipliers.pdf

Matrix Calculus from http://www.ee.ic.ac.uk/hp/staff/dmb/matrix/intro.html

Re-Dock the Explorer/Results Window in SAS

Solution:

For Explorer window: Use menu View >> Contents Only.

For Results window: Use menu View >> Results.

multiple ampersand for SAS macro

When macro variables contain the name of another macro variable or pieces of names of other macro variables the resulting code will often contain two (or more!!) ampersands.

A Gibbles sampler for Hierarchical Bayes

hieracrh1<-function(nsims,x,tau,kstart){
bold<-1
clambda<-rep(0,(nsims+kstart))
cb<-rep(0,(nsims+kstart))
for(i in 1: (nsims+kstart))
{clambda[i]<-rgamma(1,shape=(x+1),scale=(bold/(bold+1)))
newy<-rgamma(1,shape=2,scale=(tau/(clambda[i]*tau+1)))
cb[i] <-1/newy
bold<-1/newy
}
gibbslambda<-clambda[(kstart+1):(nsims+kstart)]
gibbsb<-cb[(kstart+1):(nsims+kstart)]
out<-list(clambda=clambda, cb=cb,gibbslambda=gibbslambda,gibbsb= gibbsb)
return(out)
}

mean(hieracrh1(4000,6,0.04,1000)$gibbslambda)
mean(hieracrh1(4000,6,0.045,1000)$gibbslambda)
mean(hieracrh1(4000,6,0.05,1000)$gibbslambda)
mean(hieracrh1(4000,6,0.055,1000)$gibbslambda)
mean(hieracrh1(4000,6,0.06,1000)$gibbslambda)

Install R package from the source

install.packages("path\file", repos = NULL, type="source")

Where path_to_file would represent the full path and file name:

• On Windows it will look something like this: "C:\\RJSONIO_0.2-3.tar.gz".
• On UNIX it will look like this: "/home/blah/RJSONIO_0.2-3.tar.gz"