2011 ICPSR SUMMER PROGRAM
SCALING AND DIMENSIONAL ANALYSIS
"Minimizing stress and rotating in
n
-space since 1984!"
Computing
Materials
Materials for handout "Summated Rating Scale of Issue Attitudes (Analysis Performed Using Stata)
Click
here
for the Stata Do file from the handout
Click
here
for the ASCII text file, "issues.dat"
Materials for handout "Summated Rating Scale of Issue Attitudes (Analysis Performed Using R)
Click
here
for the R script from the handout
Click
here
for the ASCII text file, "Issues, 1988, with names.txt"
Materials for metric MDS of intercity driving distances, in R
Click
here
for the R script
Click
here
for the ASCII text file, "Intercity distances, with names.txt"
Nonmetric MDS of 2004 candidate data, in R
Click
here
for the R script to perform the MDS with the "isoMDS" function
Click
here
for the R script to perform the MDS with the "smacofSym" function
Click
here
for the ASCII text file, "dissims, 2004 candidates, with names.txt"
Click
here
for the R script that converts a rectangular file of thermometer ratings into a dissimilarities matrix, and performs a nonmetric MDS
Click
here
for Stata data file, "therms.dta"
Nonmetric MDS of 2004 candidate data, in Stata
Click
here
for Stata do file to perform basic nonmetric MDS on 2004 candidate data
Click
here
for Stata data file, "therms.dta"
Click
here
for Stata do file to insert external criteria into MDS configuration from 2004 candidates
Click
here
for the file, "external info.txt"
Click
here
for Stata do file that performs nonmetric MDS and cluster analysis on 2004 candidate data
Nonmetric MDS of 1992 candidate data, in Stata
Click
here
for Stata do file to perform nonmetric MDS using the "mdsmat" routine in Stata
Click
here
for text file, "1992 candidates, los dissim matrix.txt"
Replicated MDS and Weighted MDS in R, 1980 data
Click
here
for R script to perform RMDS and WMDS using the "smacof" package
Click
here
for text file, "cands, 1980, with names.txt"
wspp
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