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SAS analysis of covariance example - University of Idaho

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SAS analysis of covariance example - University of Idaho

/* SAS program for analysis of covariance, with one */ /* factor and one covariate. Data are from example */ /* 16.1, p. 1012 in the text. Response Y is plant */

http://www.webpages.uidaho.edu/~brian/sas_analysis_of_covariance_example.pdf

Date added: September 28, 2012 - Views: 38

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Topic 13. Analysis of Covariance (ANCOVA, 13. 1. Introduction

Analysis of Covariance (ANCOVA, ST&D Chapter 17) 13. 1. Introduction ... these adjusted means can be calculated in SAS via the LSMEANS (least-squares means) statement. For example, the statement: LSMeans Trt / StdErr Pdiff Adjust = Tukey;

http://www.plantsciences.ucdavis.edu/agr205/Lectures/2011_Lectures/L13_ANCOVA.pdf

Date added: February 14, 2012 - Views: 36

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198-30: Guidelines for Selecting the Covariance Structure in ...

Paper 198-30 Guidelines for Selecting the Covariance Structure in Mixed Model Analysis Chuck Kincaid, COMSYS Information Technology Services, Inc., Portage, MI

http://www2.sas.com/proceedings/sugi30/198-30.pdf

Date added: March 11, 2012 - Views: 22

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Analysis of Covariance - B W Griffin

Since analysis of covariance involves both analysis of variance and regression analysis, we can do an ANCOVA using multiple regression. ... not available on SAS or SPSS, we consider an alternative analysis that does shed some light.

http://www.bwgriffin.com/gsu/courses/edur8132/notes/Stevens_2007_ANCOVA_chapter.pdf

Date added: May 17, 2012 - Views: 24

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Analysis of Covariance (ANCOVA) - Statistics Hell

Analysis of Covariance (ANCOVA) Some background ANOVAcanbe!extendedtoinclude!one!or!more!continuous!variables!that!predict!the!outcome!(or!dependent! variable).!Continuous!variables!such!as!these,!that!are!not!part!of!the!main!experimental!manipulation!but!have!an!

http://www.statisticshell.com/docs/ancova.pdf

Date added: February 17, 2012 - Views: 69

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SAS/STAT 9.22User’s Guide Introduction to Analysis of ...

SAS/STAT® 9.22User’s Guide Introduction to Analysis of Variance Procedures (Book Excerpt) SAS® Documentation

http://support.sas.com/documentation/cdl/en/statugvariance/63790/PDF/default/statugvariance.pdf

Date added: April 10, 2012 - Views: 7

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Lecture 32 Analysis of Covariance II - Purdue University

Analysis of Covariance II STAT 512 Spring 2011 Background Reading KNNL: Chapter 22 . 322 Topic Overview ... (cashoffers_ancova.sas) • Y is offer made by a dealer on a used car • Factor 1 is the age of person selling the car (young, middle, elderly)

http://www.stat.purdue.edu/~ghobbs/STAT_512/Lecture_Notes/ANOVA/Topic_32.pdf

Date added: October 10, 2012 - Views: 8

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Statistics 2: ANOVA and Regression - SAS

Regression Using Indicator Variables and Analysis of Covariance • using and interpreting indicator variables in the REG procedure • building and interpreting analysis of

http://www.sas.com/offices/europe/uk/education/courses/pdf/st292.pdf

Date added: March 13, 2013 - Views: 19

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SUGI 26: A Macro Program for ANOVA or ANCOVA, Using PROC GLM ...

A MACRO PROGRAM FOR ANOVA OR ANCONVA, USING PROC GLM OR PROC MIXED Zaizai Lu, Kendle International Inc., ... Analysis of Covariance (ANCOVA) are the two most ... SAS Institute Inc. ...

http://www2.sas.com/proceedings/sugi26/p208-26.pdf

Date added: October 24, 2011 - Views: 21

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THE USE OF RANK ANALYSIS OF COVARIANCE IN ANALYZING CENSORED ...

THE USE OF RANK ANALYSIS OF COVARIANCE IN ANALYZING CENSORED SURVIVAL DATA Robert F. Woolson, Peter A. Lachenbruch and Saeid B. Amini, University of Iowa

http://www.sascommunity.org/sugi/SUGI83/Sugi-83-152%20Woolson%20Lachenbruch%20Amini.pdf

Date added: December 12, 2012 - Views: 11

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Analysis of covariance: tips and tricks using PROC GLM

Intro to Analysis of Covariance (ANCOVA) • Analysis of Covariance (ANCOVA) put into a single, coherent package, Analysis of Variance and Linear Regression.

http://bias-it.org/presentazioni/Data_handling_and_rep/1_Cavuto.pdf

Date added: July 12, 2014 - Views: 1

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Covariance Estimations - Jason Hsu

See the SAS IML Introduction document for a guide on linear algebra computation in SAS. Sample Covariance Matrix Σ = 1 −1 ... Without relying on any theoretical assumption, principal component analysis (PCA) can be used to determine the underlying drivers of the stock returns.

http://www.jasonhsu.org/uploads/1/0/0/7/10075125/covariance_estimations.pdf

Date added: May 6, 2013 - Views: 1

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Introduction to Analysis of Variance Procedures

Thus the procedures for general analysis of variance in SAS/STAT are considered to be those ... analysis of variance, analysis of covariance, multivariate analysis of variance, repeated measures analysis, and partial correlation analysis.

http://support.sas.com/documentation/onlinedoc/stat/930/introanova.pdf

Date added: July 27, 2012 - Views: 23

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Analysis of Covariance (ANCOVA) - Little Dumb doctor

More Statistics& SAS Tutorial at http://www.LittleDumbDoctor.com 4 treatments, 8 e.u. per treatment Obs trt x y 1 c ... Analysis of Covariance (ANCOVA) Author: Kathryn Hanford Subject: Analysis of Covariance (ANCOVA) Keywords:

http://www.littledumbdoctor.com/index_files/Mixed_model_notes_4_analysis%20of%20covariance.pdf

Date added: August 10, 2013 - Views: 6

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Using SAS® Software to Check Assumptions for Analysis of ...

Using SAS® Software to Check Assumptions for Analysis of Covariance, Including Repeated Measures Designs Richard P. Steiner, The University of Akron, Akron, OH

http://www.sascommunity.org/sugi/SUGI94/Sugi-94-182%20Steiner%20Wineman.pdf

Date added: October 22, 2011 - Views: 32

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Analysis of Covariance - Louisiana State University

In SAS we can fit our own indicator variable in proc reg, building dummy variables in the data step. However, if there are more than just two levels ... Analysis of Covariance is the combination of quantitative variables and categorical variables.

http://www.stat.lsu.edu/faculty/geaghan/EXST7015/Spring2011/PDF/16%20Multiple%20Regression%20-%20ANCOVA.pdf

Date added: August 10, 2013 - Views: 4

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Non-Parametric Analysis of Covariance - JSTOR

Non-parametric Analysis of Covariance Stuart G. Young and Adrian W. Bowman Department of Statistics, University of Glasgow, Glasgow G12 8QW, Scotland SUMMARY An analysis of covariance model where the covariate effect is assumed only to be smooth is

http://www.jstor.org/stable/2532993

Date added: May 30, 2013 - Views: 6

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Rank Analysis of Covariance: Alternative Approaches - JSTOR

The Statistician 32 (1983) 331-337 ? 1983 Institute of Statisticians Rank Analysis of Covariance: Alternative Approaches ANDREW LAWSON Inveresk Research International Ltd, Inveresk Gate, Musselburgh EH21 7UB

http://www.jstor.org/stable/2987939

Date added: January 6, 2013 - Views: 2

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Week 15 Lecture: Analysis of Covariance - OIT News and ...

1 Week 15 Lecture: Analysis of Covariance Analysis of Covariance (ANCOVA) is a technique that combines ANOVA and regression. The idea behind ANCOVA is to include a quantitative variable (called a covariate or concomitant

http://faculty.sfasu.edu/cobledean/Biostatistics/Lecture15/ANCOVA.PDF

Date added: November 24, 2011 - Views: 31

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Path Analysis Using PROC CALIS SAS Code - CU-Boulder ...

Path Analysis Using PROC CALIS SAS Code: /* file ~carey/p7291dir/pathreg2.sas Example of using PROC CALIS to perform multivariate ... Covariance Structure Analysis: Pattern and Initial Values LINEQS Model Statement----- Matrix Rows ...

http://psych.colorado.edu/~carey/Courses/PSYC7291/handouts/pathcalis.pdf

Date added: September 8, 2013 - Views: 1

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Applications of GEE Methodology Using the SAS System

Applications of GEE Methodology Using the SAS ... independence case, but the covariance structure of the correlated measurements must also be modeled. ... GEE Analyses Analysis objectives PROC GENMOD set-up Results and interpretation References

http://www.nesug.org/Proceedings/nesug97/stat/stokes.pdf

Date added: May 7, 2012 - Views: 10

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Chapter 16 Repeated Measures - Cornell University

To select the covariance structure for the analysis, follow these steps: 1. Select the Covariance Structure tab. 2. Select the Compound symmetry covariance structure. SAS OnlineDoc ...

http://ciser.cornell.edu/sasdoc/saspdf/analyst/chap16.pdf

Date added: March 8, 2013 - Views: 8

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Analysis of Covariance.ppt - University of Texas at Arlington

Analysis of CovarianceAnalysis of Covariance ANCOVA Chapter 11. ANOVA Terminology ... Check homogeneity of variance ifCheck homogeneity of variance if you have a between subjects factor. The null hypothesis is that the groups have equal variance.

http://wweb.uta.edu/faculty/ricard/Classes/KINE-5305/ANCOVA/Analysis%20of%20Covariance.pdf

Date added: March 15, 2012 - Views: 20

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Chapter 25 Analysis of Covariance

Analysis of Covariance Analysis of covariance (or ANCOVA) introduces regression elements into an ANOVA analysis. This is done primarily to increase the precision of the ANOVA analysis. 25.1 Basic Ideas SAS program: att7-25-1-drugs-ANCOVA,plots Exercise 25.1(Basic Ideas) 1.

http://faculty.pnc.edu/jkuhn/courses/previous/past%20courses/514/attendance7.pdf

Date added: August 28, 2014 - Views: 1

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Analysis of Covariance - EXSTHome

In SAS we can fit our own indicator variable in proc reg, building dummy variables in the data step. However, if there are more than just two levels ... Analysis of Covariance is the combination of quantitative variables and categorical variables.

http://www.stat.lsu.edu/faculty/geaghan/EXST7015/Spring2013/PDF/EXST7015%20Spring2013%20Course%20Notes%20Lect16.pdf

Date added: September 22, 2013 - Views: 1

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NParCov3: A SAS/IML Macro for Nonparametric Randomization ...

4 NParCov3: Nonparametric Randomization-Based Analysis of Covariance in SAS/IML was to compare the rates of cerebral vasospasm between treatments that occurred following

http://www.jstatsoft.org/v50/i03/paper

Date added: December 30, 2012 - Views: 3

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Creating a Propensity Score using SAS EG DRAFT

ways, such as weighting, matching, analysis of covariance, or stratification. P‐scores help reduce bias in. Page 2 of 13 non ... Microsoft Word - Creating a Propensity Score using SAS EG DRAFT Author: E141583 Created Date:

http://www.scsug.org/SCSUGProceedings/2011/brunner1/Creating%20a%20Propensity%20Score%20using%20SAS%20EG.pdf

Date added: October 2, 2012 - Views: 6

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Analysis of Covariance - Purdue University

Analysis of Covariance Design of Experiments - Montgomery Section 14-3 10 Background † Consider factor x which is correlated with y † Can measure x but can’t control it (block)

http://www.stat.purdue.edu/~bacraig/notes1/topic10.pdf

Date added: November 1, 2011 - Views: 15

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Analysis of Covariance (ANCOVA) or Dummy Variable Regression ...

SAS Work Shop Statistical Programs PROC GLM College of Agriculture Handout #4

http://webpages.uidaho.edu/cals-statprog/sas/workshops/glm/handout4_glm.pdf

Date added: March 22, 2014 - Views: 1

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U SPSS: ONE WAY ANALYSIS OF COVARIANCE (ANCOVA)

USING SPSS: ONE-WAY ANALYSIS OF COVARIANCE (ANCOVA) 1. ENTERING THE DATA: For this example, we are using the HSB500 (High School and Beyond) data file.

http://oak.ucc.nau.edu/rh232/courses/EPS625/Handouts/ANCOVA/ANCOVA%20-%20Using%20SPSS.pdf

Date added: January 3, 2012 - Views: 181

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Confirmatory Factor Analysis using Amos, LISREL, Mplus, SAS ...

Factor Analysis Using Amos, LISREL, Mplus, and SAS/STAT CALIS. Working Paper. The University Information Technology Services ... Covariance Structure Analysis: Maximum Likelihood Estimation Fit Function 0.0085 Goodness of Fit Index (GFI) 0.9972

http://rt.uits.iu.edu/visualization/analytics/docs/cfa-docs/cfa.pdf

Date added: September 22, 2013 - Views: 1

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Multivariate Analyses - Cornell University

as Y variables and a multivariate analysis for the variables appears. If you have not ... raw or standardized variance can be used in the analysis. SAS OnlineDoc ... the covariance measures the tendency of two variables to linearly increase or decrease

http://ciser.cornell.edu/sasdoc/saspdf/insight/chap40.pdf

Date added: December 31, 2012 - Views: 5

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A SAS Macro to Automate The Covariance Structure ...

A SAS Macro to Automate The Covariance Structure Determination in Repeated Measures Data Analysis with Mixed Procedure Don (Dongguang) Li, NCIC-CTG at Queen s University, Kingston, ON, Canada

http://www.lexjansen.com/pharmasug/2003/statisticspharmacokinetics/sp013.pdf

Date added: September 11, 2012 - Views: 4

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Analysis of Covariance

Analysis of Covariance • Combines linear regression and ANOVA • Can be used to compare g treatments, after controlling for quantitative factor believed to be

http://www.stat.ufl.edu/%7Ewinner/sta6167/ancovacc.pdf

Date added: November 29, 2013 - Views: 3

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FOR ANALYSIS OF COVARIANCE by Abstract

some distjnctive features of output from statistical comiuting packages for analysis of covariance by bu-761-m february, 1982 s. r. searle and g. f. s. hudson

http://dspace.library.cornell.edu/bitstream/1813/32863/1/BU-761-M.pdf

Date added: March 15, 2014 - Views: 1

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Chapter 13 SAS Analysis of CRAC-4 Design (One Covariate)

Chapter 13 SAS Analysis of CRAC-4 Design (One Covariate) Data from Table 13.3-1 Analysis of Variance and Exploratory Data Analysis With SAS

http://www.sagepub.com/kirk/study/materials/SPSS/74455_13ds3.pdf

Date added: May 28, 2013 - Views: 4

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Comparing the SAS GLM and MIXED Procedures for Repeated Measures

Comparing the SAS GLM and MIXED Procedures for Repeated Measures ... have to select a transformation in a PROC MIXED analysis. The PROC MIXED mean specification is actually more ... MIXED. The covariance structure specification in PROC

http://www.ats.ucla.edu/stat/sas/library/mixedglm.pdf

Date added: November 5, 2011 - Views: 27

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Functional Data Analysis on SAS system - NESUG | Northeast ...

Functional Data Analysis on SAS system Le Yin, Lehigh University, Bethlehem, PA . ... By creating the covariance vector, we use COLVEC function to convert the matrix into a column vector in row-major order which really make our codes more efficient.

http://www.nesug.org/Proceedings/nesug10/po/po35.pdf

Date added: April 8, 2012 - Views: 20

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Topic 13: Analysis of Covariance (ANCOVA)

Topic 13: Analysis of Covariance (ANCOVA) Due Tuesday, March 11, at the beginning of lecture. Include your SAS codes, answer all parts of the questions completely, and interpret all results. To ensure maximum points for yourself, invest some time

http://www.plantsciences.ucdavis.edu/agr205/HW/2014/HW%2013/2014%20HW%2013.pdf

Date added: March 23, 2014 - Views: 2

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The MIXED Procedure - University of Iowa

PDATA=SAS-data-set reads in covariance parameter values from a SAS data set.. The data set should con-tain the EST or COVP1–COVP n variables. ... dard PROC MIXED analysis (REML, ML, or MIVQUE0, depending upon which es-timation method you select).

http://homepage.stat.uiowa.edu/~dzimmer/spatialstats/SAS-Proc-Mixed.pdf

Date added: May 11, 2013 - Views: 10

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APPROACH OF LINEAR MIXED MODEL IN LONGITUDINAL DATA ANALYSIS ...

LONGITUDINAL DATA ANALYSIS USING SAS Pankaj Tiwari* and Gaurav Shukla *LES & IT Divison, Ivri, Izzatnagar, Bareilly E-Mail:[email protected], [email protected] ... through the specification of a covariance structure. PROC MIXED provides a useful covariance

http://www.jrss.in/data/56.pdf

Date added: September 11, 2012 - Views: 17

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Statistical Analysis of Repeated Measures Data Using SAS ...

SAS FOR REPEATED MEASURES 1225 Figure 2. Compound symmetric covariance and correlation matrices and covariance parameter estimates. that provides the best fit is the appropriate one to use,

http://www.animal-science.org/content/76/4/1216.full.pdf

Date added: December 19, 2011 - Views: 45

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Analysis of Covariance (ANCOVA) - BOKU

Analysis of Covariance (ANCOVA) Covariance analysis is a kind of analysis of variance in which the data are adjusted (or controlled) for the presence of one or more other variables.

http://homepage.boku.ac.at/h505t3/SAS-Kurs/CovarianceAnalysis.pdf

Date added: January 13, 2013 - Views: 13

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Using SAS Proc Mixed for the Analysis of Longitudinal Data

1 Using SAS® Proc Mixed for the Analysis of Clustered‐Longitudinal Data Kathy Welch Center for Statistical Consultation and Research

http://www.misug.org/uploads/8/1/9/1/8191072/kwelch_clustered_longitudinal_analysis.pdf

Date added: November 13, 2013 - Views: 4

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Introduction to Analysis-of-Variance Procedures

Chapter 4 Introduction to Analysis-of-Variance Procedures Overview This chapter reviews the SAS/STAT software procedures that are used for analysis

http://www.okstate.edu/sas/v7/saspdf/stat/chap4.pdf

Date added: October 24, 2012 - Views: 8

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Analysis of Covariance

1 Design of Experiments Analysis of Covariance One of the primary goals of our modeling approach is to develop a model that adequately represents the data.

http://people.umass.edu/~bioep741/Class%20Notes/lesson%2014.PDF

Date added: August 28, 2014 - Views: 1

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stat5411 Analysis of Covariance

Analysis of Covariance (ANCOVA) Covariate: A continuous variable used to adjust when judging other effects. Or sometimes a continuous effect of interest is called a covariate. ... By default the SAS (or any) ANCOVA model is a linear effect of humidity.

http://www.d.umn.edu/~rregal/documents/5411/stat5411_Analysis_of_Covariance.pdf

Date added: August 28, 2014 - Views: 1

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Biostatistics 411 Robert Weiss http://rem.ph.ucla.edu/rob ...

Covariance Models Our choice of covariance model determines the possible variances and correlations for our data. SAS has a large number of choices for the covariance model.

http://rem.ph.ucla.edu/rob/biostat411/notes/5patternedcovariance.pdf

Date added: May 13, 2012 - Views: 4

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Paper PO20 A Parameterized SAS Macro to Select an Appropriate ...

1 Paper PO20 A Parameterized SAS Macro to Select an Appropriate Covariance Structure in Repeated Measures Data Analysis Using PROC MIXED Leela Aertker, Rho, Chapel Hill, NC

http://www.pharmasug.org/proceedings/2014/PO/PharmaSUG-2014-PO20.pdf

Date added: June 5, 2014 - Views: 1

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STAT 705 Chapters 22: Analysis of Covariance

STAT 705 Chapters 22: Analysis of Covariance Timothy Hanson Department of Statistics, University of South Carolina Stat 705: Data Analysis II 1/16. ... Cracker sales in SAS data cracker; input treatment cases preceding @@; datalines; 1 38 21 1 39 26 1 36 22 1 45 28 1 33 19

http://www.stat.sc.edu/~hansont/stat705/chapter22.pdf

Date added: August 28, 2014 - Views: 1