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Data Analysis with STATA

You're reading from   Data Analysis with STATA Explore the big data field and learn how to perform data analytics and predictive modelling in STATA

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Product type Paperback
Published in Oct 2015
Publisher Packt
ISBN-13 9781782173175
Length 176 pages
Edition 1st Edition
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Toc

Table of Contents (11) Chapters Close

Preface 1. Introduction to Stata and Data Analytics FREE CHAPTER 2. Stata Programming and Data Management 3. Data Visualization 4. Important Statistical Tests in Stata 5. Linear Regression in Stata 6. Logistic Regression in Stata 7. Survey Analysis in Stata 8. Time Series Analysis in Stata 9. Survival Analysis in Stata Index

Pyramidal graphs


What if we need a pyramidal graph divided into all possible subcategories of the data? Here is your answer in terms of the Stata code:

egen scoregroup= cut(score), group(9) label
tab scoregroup

sort sex scoregroup session
contract sex scoregroup session
rename _freq cnt

reshape wide cnt, i(scoregroup sex) j(session)

gen d1 = cnt1 /*session = 1 */
gen d12 = cnt1+cnt2
gen d123 = cnt3 + d12
gen d1_n = - d1
gen d12_n = - d12
gen d123_n = - d123

gen zero = 0

label values scoregroup scoregroup
label values sex f1

twoway bar c123 scoregroup if sex==0 , horizontal || ///
  bar c12 scoregroup if sex==0, horizontal || ///
  bar c1 scoregroup if sex ==0, horizontal  || ///
  bar c123_n scoregroup if sex ==1 , horizontal || ///
  bar c12_n scoregroup if sex ==1, horizontal || ///
  bar c1_n scoregroup if sex ==1, horizontal || ///

  sc  scoregroup zero ,  mlabel(scoregroup) mlabsize(vsmall) ///
  mlabcolor(white) msymbol(i) || , plotregion(style(none)) ysca(dash) ///
  ylabel...
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