[U] User's Guide

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312 [ U ] 20 Estimation and postestimation commandsWeesie, J. 2000. sg127: Summary statistics for estimation sample. Stata Technical Bulletin 53: 32–35. Reprinted inStata Technical Bulletin Reprints, vol. 9, pp. 275–277. College Station, TX: Stata Press.White, H. 1980. A heteroskedasticity-consistent covariance matrix estimator and a direct test for heteroskedasticity.Econometrica 48: 817–838.. 1982. Maximum likelihood estimation of misspecified models. Econometrica 50: 1–25.
Advice21 Inputting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31522 Combining datasets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32523 Working with strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32724 Working with dates and times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33125 Working with categorical data and factor variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33926 Overview of Stata estimation commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35727 Commands everyone should know . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37528 Using the Internet to keep up to date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377313
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A Stata Press PublicationStataCorp
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iTable of contentsStata basics1 Rea
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iii8.2 The return message for obtai
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v14 Matrix expressions . . . . . .
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vii18.11.6 Writing online help . .
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ix25.2.15 Treatment of empty cells
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Stata basics1 Read this—it will h
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4 [ U ] 1 Read this—it will helpA
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6 [ U ] 1 Read this—it will helpW
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8 [ U ] 1 Read this—it will helpW
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10 [ U ] 1 Read this—it will help
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36 [ U ] 2 A brief description of S
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38 [ U ] 2 A brief description of S
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40 [ U ] 3 Resources for learning a
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[ U ] 4.3 help: Stata’s help syst
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52 [ U ] 4 Stata’s help and searc
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58 [ U ] 5 Flavors of Stata5.2 Stat
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60 [ U ] 5 Flavors of StataThe diff
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62 [ U ] 6 Setting the size of memo
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8 Error messages and return codesCo
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[ U ] 8.2 The return message for ob
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76 [ U ] 9 The Break key9.2 Side ef
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78 [ U ] 10 Keyboard usesave is the
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80 [ U ] 10 Keyboard use10.4 Editin
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82 [ U ] 10 Keyboard useAnother met
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11 Language syntaxContents11.1 Over
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[ U ] 11.1 Overview 8711.1.2 by var
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[ U ] 11.1 Overview 89. summarize m
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[ U ] 11.1 Overview 91Example 7Nega
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11.1.7 options[ U ] 11.1 Overview 9
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[ U ] 11.1 Overview 9511.1.8 numlis
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[ U ] 11.2 Abbreviation rules 97by
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[ U ] 11.3 Naming conventions 99The
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[ U ] 11.4 varlists 101You may use
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[ U ] 11.4 varlists 103Consider a v
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[ U ] 11.4 varlists 105Here are som
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[ U ] 11.4 varlists 107You can sele
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[ U ] 11.4 varlists 109. use http:/
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[ U ] 11.5 by varlist: construct 11
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[ U ] 11.5 by varlist: construct 11
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[ U ] 11.6 File-naming conventions
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12 DataContents12.1 Data and datase
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[ U ] 12.2 Numbers 119. display 2/0
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[ U ] 12.2 Numbers 121Technical not
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[ U ] 12.4 Strings 12312.4 StringsA
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[ U ] 12.5 Formats: Controlling how
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[ U ] 12.6 Dataset, variable, and v
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[ U ] 12.8 Characteristics 139You c
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[ U ] 12.10 References 141The Varia
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144 [ U ] 13 Functions and expressi
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162 [ U ] 14 Matrix expressionsHere
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164 [ U ] 14 Matrix expressionsWe c
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166 [ U ] 14 Matrix expressions. ma
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168 [ U ] 14 Matrix expressionsRega
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170 [ U ] 14 Matrix expressionsEith
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172 [ U ] 14 Matrix expressionsThe
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174 [ U ] 14 Matrix expressions7. W
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176 [ U ] 15 Saving and printing ou
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182 [ U ] 16 Do-filesYou then enter
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184 [ U ] 16 Do-files* a sample ana
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186 [ U ] 16 Do-files16.1.4 Error h
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188 [ U ] 16 Do-filesMany users inc
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190 [ U ] 16 Do-files5. If Stata is
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192 [ U ] 16 Do-filesyou could writ
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17 Ado-filesContents17.1 Descriptio
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[ U ] 17.5 Where does Stata look fo
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17.6 How do I install an addition?A
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18 Programming StataContents18.1 De
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[ U ] 18.2 Relationship between a p
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[ U ] 18.3 Macros 205That problem i
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[ U ] 18.3 Macros 207For the right
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[ U ] 18.3 Macros 209To a programme
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[ U ] 18.3 Macros 211Because Stata
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[ U ] 18.3 Macros 213Above we have
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[ U ] 18.3 Macros 21518.3.10 Advanc
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[ U ] 18.4 Program arguments 217You
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[ U ] 18.4 Program arguments 219Let
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[ U ] 18.4 Program arguments 221Equ
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[ U ] 18.4 Program arguments 223pro
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[ U ] 18.4 Program arguments 22518.
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[ U ] 18.7 Temporary objects 22718.
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[ U ] 18.8 Accessing results calcul
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[ U ] 18.9 Accessing results calcul
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[ U ] 18.10 Saving results 2333. Co
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[ U ] 18.10 Saving results 2355. Yo
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[ U ] 18.11 Ado-files 237e(sample)
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[ U ] 18.11 Ado-files 239If you wri
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[ U ] 18.11 Ado-files 241duck is co
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[ U ] 18.11 Ado-files 243begin fvar
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[ U ] 18.11 Ado-files 245begin fvar
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Technical note[ U ] 18.11 Ado-files
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[ U ] 18.11 Ado-files 249{phang}{op
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[ U ] 18.11 Ado-files 2515. Include
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[ U ] 18.13 References 253Technical
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256 [ U ] 19 Immediate commands19.1
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258 [ U ] 19 Immediate commands19.1
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260 [ U ] 20 Estimation and postest
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Page 328 and 329: 316 [ U ] 21 Inputting data21.2 Det
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Page 337 and 338: 22 Combining datasetsYou have two d
Page 339 and 340: 23 Working with stringsContents23.1
Page 341 and 342: [ U ] 23.4 Complex strings 329The p
Page 343 and 344: 24 Working with dates and timesCont
Page 345 and 346: [ U ] 24.2 Inputting dates and time
Page 347 and 348: [ U ] 24.2 Inputting dates and time
Page 349 and 350: [ U ] 24.6 Converting between date
Page 351 and 352: 25 Working with categorical data an
Page 353 and 354: [ U ] 25.1 Continuous, categorical,
Page 355 and 356: [ U ] 25.2 Estimation with factor v
Page 369 and 370: 26 Overview of Stata estimation com
Page 371 and 372: [ U ] 26.3 ANOVA, ANCOVA, MANOVA, a
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[ U ] 26.9 Exact estimators 363In t
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[ U ] 26.14 Models with time-series
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[ U ] 26.15 Panel-data models 367xt
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26.15.6 Random-coefficient models w
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[ U ] 26.21 Multivariate and cluste
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[ U ] 26.25 Reference 373should try
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376 [ U ] 27 Commands everyone shou
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378 [ U ] 28 Using the Internet to
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390 Subject and author indexcoeffic
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392 Subject and author indexIif exp
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394 Subject and author indexPiantad
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396 Subject and author indexUnix,ke
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