Systat 6.0 for Windows: Unknown: 9780136544852: Book: : eCampus.com

1 Introducing SYSTAT 6.0

(14)

Windows

(4)

Main window

(1)

Data window

(1)

Graph window

(1)

Command Editor

(1)

Menus

(3)

Main window

(1)

Data window

(1)

Graph window

(1)

Command Editor

(1)

Dialog Boxes

(2)

Getting Help

(3)

Types of Help available

(3)

2 A Quick Data Analysis Tour

(40)

Starting SYSTAT

(1)

Entering Data

(4)

Using dialog boxes

(1)

Command prompt

(1)

Reading an ASCII Text File

(6)

Sorting and Listing the Cases

(2)

A Quick Description

(6)

Frequency counts and percentages

(3)

Descriptive statistics

(3)

Stats by group

(2)

A First Look at Relations among Variables

(19)

Subpopulations

(5)

3-D displays

(2)

A two-sample t test

(2)

A one-way ANOVA

(5)

Tukey pairwise mean comparisons

(1)

A two-way ANOVA with interaction

(4)

Summary

(1)

3 Data Files

(20)

Opening and Saving Data Files

(9)

The Data window

(1)

Opening data files

(5)

Using commands

(1)

Importing ASCII text files

(1)

Reading variable names

(1)

Reading dBASE files

(1)

Importing spreadsheet files (Excel and Lotus)

(1)

Data Interchange Format (DIF) files

(1)

Saving data files

(3)

Using commands

(1)

Exporting data

(1)

Single or double precision

(1)

File comments

(1)

Merging, Appending, and Transposing Data Files

(9)

Merging files side by side (adding variables)

(5)

Selecting a subset of the variables

(1)

Merging by key variables

(1)

Generating replicates of a record

(3)

3.1 A simple side-by-side merge

(1)

3.2 Merging with a key variable

(2)

Merging files end to end (adding cases)

(1)

3.3 A simple end-to-end merge

(1)

Transposing files

(2)

4 Saving and Printing Output and Graphics

(10)

Saving Output and Graphs

(4)

Saving output in the Main window

(1)

Directing output to a file or printer

(1)

Saving output and data in BASIC

(1)

Saving results from statistical analyses

(1)

Saving graphs

(2)

Printing Data, Output, and Charts

(4)

Sending output to the printer automatically

(1)

Setting up the printer

(1)

Exporting results to other appliactions

(3)

Exporting results using the clipboard

(2)

5 Entering and Editing Data

(18)

The Data Window

(5)

Data file Structure

(4)

Variable names

(1)

Numeric versus string variables

(1)

Subscripted variables

(1)

Grouoping variables

(1)

Missing data

(1)

Maximum file size

(1)

Entering Data

(2)

Entering non-numeric data

(1)

Entering data by case or by variable

(1)

Saving data

(1)

Editing Data

(7)

Moving around in the Data window

(1)

Selecting data

(1)

Correcting data and changing variable names

(1)

Adding variables or cases

(1)

Dropping variables

(1)

Deleting cases

(1)

Cutting and pasting variables or cases

(1)

Using commands

(1)

Finding data

(1)

Finding cases that satisfy conditions

(1)

Finding variables

(1)

Case ID

(1)

Deriving new variables

100

(1)

Cell display format

100

(1)

Other Data Structures

101

(2)

Data in tabulated form

101

(1)

Matrix input

102

(1)

6 Re-expressing and Transforming Data

103

(48)

Overview

105

(3)

Transformation Statements

108

(7)

LET and IF...THEN LET

109

(3)

IF...THEN LET statements

111

(1)

Built-in variables

112

(1)

Generating a case number

112

(1)

Shortcuts

112

(2)

Specifying contiguous variables

113

(1)

Multiple transformations: The @ sign

113

(1)

Clearing transformations

114

(1)

Operators and Functions

115

(31)

Arithmetic Operators

115

(1)

Relational operators

115

(1)

Logical operators

116

(2)

Order of expression evaluation

118

(1)

Mathematical functions

119

(1)

6.1 Creating lagged variables

120

(1)

Multivariable functions

120

(5)

6.2 Finding the number of missing values

121

(1)

6.3 Summary statistics

122

(1)

6.4 Slope of the line-of-best-fit

122

(1)

6.5 Computing the area under a curve

123

(1)

6.6 Matching specific values

124

(1)

Group and interval functions

125

(3)

6.7 Recoding grouping variables: COD

126

(1)

6.8 Finding a match: INC

126

(1)

6.9 Defining intervals on a continuous variable: CUT

127

(1)

6.10 Defining cutpoints alphabetically: CUT

128

(1)

Date and time functions

128

(4)

Current time and date: NOW$

129

(1)

Converting times and dates to numbers: VAL

130

(1)

Converting times or dates to characters: STR$

130

(1)

Day of the century: DOC

131

(1)

Day of the week: DOW$

131

(1)

Character functions

132

(11)

6.11 Changing case

133

(1)

6.12 Justifying character values

134

(1)

6.13 Deleting blanks or other characters

135

(3)

Locating a character in a string

136

(1)

Converting numbers to characters and vice versa

136

(1)

Extracting and inserting characters

137

(1)

6.14 Converting numbers from European to American notation

138

(1)

6.15 Extracting first names

139

(1)

6.16 Concatenating character strings

140

(1)

6.17 ASCII codes

141

(1)

6.18 Using Soundex to code names

141

(2)

Distribution functions

143

(3)

Random number generators

145

(1)

6.19 Generating a new file of random data

145

(1)

Ranking and Standardizing Variables

146

(3)

Ranks

146

(1)

Standardized scores

147

(2)

6.20 Standardizing age

148

(1)

The Calculator

149

(2)

Today's date and time

149

(1)

Finding the antilog

149

(1)

Computing an F Stastic

150

(1)

7 List, Sort, and Select

151

(16)

Overview

153

(1)

Listing Data

154

(8)

7.1 Listing all variables and cases

155

(1)

7.2 Listing 10 cases for selected variables

155

(1)

7.3 Specifying an ID Variables

156

(1)

7.4 Incorporating group labels

156

(1)

Picture format

157

(3)

7.5 Picture format example

157

(1)

7.6 Displaying many variables in one panel

158

(2)

Displaying dates and times

160

(1)

Additional features for LIST

161

(1)

Sorting Cases

162

(3)

Order

162

(1)

7.7 Simple SORT

163

(1)

7.8 Nested SORT

164

(1)

7.9 Sorting in ascending or descending order

164

(1)

Selecting a Subset of Cases

165

(2)

7.10 Selecting cases

165

(1)

Turning off SELECT

166

(1)

8 Grouping Variables and By Groups

167

(18)

Overview

169

(1)

Using Label and Order

170

(8)

Label

170

(4)

Label statements

172

(1)

8.1 Recording and labeling categories and intervals

172

(2)

Including a category for missing codes

174

(2)

Groping information for multiple variables

175

(1)

Collapsing categories

175

(1)

Order

176

(2)

Using COD, INC, and CUT

178

(4)

8.2 Recording numeric and string variables: COD

178

(2)

8.3 Is it or isn't it a match? INC

180

(1)

8.4 Defining intervals: CUT

180

(2)

Defining age groups

180

(1)

Defining intervals alphabetically

181

(1)

Stratifying the Analysis: By Groups

182

(3)

By Groups and the plot Group option

183

(1)

Turning off By Groups

183

(2)

9 Options

185

(6)

Options Dialog Box

187

(3)

Sort variable lists

187

(1)

Display

187

(1)

Data/output format

188

(1)

Output results

188

(1)

Data Editor cursor

189

(1)

Data precision

189

(1)

Titles

190

(1)

10 Using Commands

191

(10)

The Command Interface

193

(8)

What do commands look like?

193

(1)

The command prompt

194

(3)

Entering commands

194

(1)

Command syntax

195

(1)

Hot versus cold commands

195

(1)

Rules for entering commands

195

(2)

Shortcuts

197

(1)

Commands files

197

(3)

The command log

197

(1)

Submitting command files

198

(1)

Comments in commands files

198

(1)

Saving commands along with output

199

(1)

Commands to control output

199

(1)

Help on commands

200

(1)

11 Programming in BASIC

201

(42)

Reading and Entering Data

203

(15)

Free-format input

204

(7)

11.1 Input data at the command prompt

205

(1)

11.2 Reading an ASCII text file: GET

205

(1)

11.3 Reading multiple lines per case

206

(1)

11.4 Unequal length records

207

(1)

11.5 Coding missing values

208

(1)

11.6 Multiple cases per record: Backslash

209

(1)

11.7 Incomplete records: Backslash

210

(1)

Fixed-format input

211

(2)

Formats

211

(2)

11.8 Simple fixed-format example

212

(1)

Entering triangular matrices

213

(2)

Specifying file type: TYPE

213

(2)

11.9 A covariance matrix

214

(1)

11.10 A matrix with a missing diagonal: DIAGONAL

214

(1)

Troubleshooting ASCII files

215

(1)

Errors and error messages

215

(1)

Unpacking records

216

(2)

Exporting Data to an ASCII Text File

218

(2)

11.11 Converting a data file to a text file

218

(1)

11.12 Saving data as text without quotes: PRINT

219

(1)

Selecting, Listing, and Saving Cases

220

(3)

11.13 Deleting selected cases

220

(1)

11.14 Saving selected cases to a new file

220

(1)

11.15 Omitting variable names and case number

221

(1)

11.16 Using PRINT to save selected cases

222

(1)

11.17 Printing the first three cases

222

(1)

Programming Examples

223

(20)

11.18 Example: A calender for the year 2000

223

(2)

Setup

225

(1)

Errors

225

(1)

Statements and expressions

225

(1)

IF...THEN

226

(1)

ELSE

227

(2)

11.19 Using IF...THEN...ELSE

228

(1)

FOR...NEXT

229

(3)

11.20 Conditional FOR...NEXT

230

(1)

11.21 FOX...NEXT with ELSE

231

(1)

FOR...NEXT loops with subscripted variables

232

(2)

Temporary subscripts using the ARRAY statement

232

(1)

11.22 Logging 10 variables

233

(1)

Dimensioning space for new variables

234

(1)

Operations within rows

234

(5)

11.23 Computing means of subscripted variables

234

(1)

11.24 Computing means of unsubscripted variables: ARRAY

235

(2)

Subgroup processing: BOG, EOG, BOF, EOF

236

(1)

11.25 Printing the last case in a file

237

(1)

11.26 Computing totals within groups

237

(1)

11.27 Computing subgroup means

238

(1)

GOTO

239

(1)

11.28 Simple GOTO

239

(1)

239

(1)

STOP

240

(1)

REPEAT, for using the first n cases

240

(1)

11.29 REPEAT example

240

(1)

Selecting random subsamples

241

(2)

11.30 Selecting a percentage of cases

241

(2)

12 Matrix

243

(54)

Overview

245

(7)

12.1 A multiple regression example

246

(3)

Entering data and defining matrices

246

(1)

Estimating the coefficients

247

(1)

Computing multiple R2

248

(1)

Eigenvalues and the condition number

248

(1)

Transformations and statistical functions

249

(1)

Design variables

250

(1)

Generating matrices

250

(1)

Identity and rectangular matrices

251

(1)

Matrix manipulations

251

(1)

Entering Data and Defining Matrices

252

(19)

Creating a matrix

252

(6)

Typing a matrix

252

(1)

Naming rows and columns

253

(1)

Reading a matrix

254

(1)

Viewing a matrix

255

(1)

Saving a matrix

255

(1)

Requesting a directory of matrices

255

(1)

Clearing matrices from memory

256

(1)

Generating matrices

256

(1)

Filling in missing values

257

(1)

Increasing workspace size

258

(1)

Specifying submatrices

258

(3)

Extracting a submatrix

258

(1)

Extracting the diagonal or tri-diagonal

259

(1)

Deleting rows and columns: DELETE and DROP

260

(1)

Conditionally deleting rows: SELECT

260

(1)

Deleting non-numeric columns: NUMERIC

260

(1)

Deleting rows with missing values: COMPLETE

261

(1)

Manipulating matrices

261

(10)

Transposing a matrix

261

(1)

Concatenating matrices

262

(1)

Reordering rows and columns

263

(1)

FOLD

264

(1)

Reconfiguring a matrix

265

(2)

12.2 Packing two records into one

266

(1)

Determining the dimensions of a matrix

267

(1)

Changing a matrix to a vector and vice versa

267

(4)

12.3 Writing a correlation matrix as a vector

267

(4)

Transformations and Statistical Functions

271

(13)

Element-by-element operators and function

271

(8)

Addition and subtraction

272

(1)

Element-by-element multiplication and division

273

(1)

Raising each element to a power

274

(1)

Functions

275

(1)

Relational operators

276

(1)

Logical operators

277

(1)

Determining whether two matrices are equal

278

(1)

Statistical functions

279

(3)

12.4 Results across rows and columns

279

(2)

Correlation, covariance, and SSCP matrices

281

(1)

12.5 Correlations for sets of variables

281

(1)

Transforming columns

282

(1)

Generating design variables

283

(1)

Matrix Algebra

284

(13)

Matrix multiplication

284

(2)

Raising a matrix to a power

285

(1)

Kronecker product

285

(1)

the inverse, determinant, and trace

286

(2)

The inverse and pivoting

286

(1)

The determinant

287

(1)

Trace

287

(1)

Eigenvalues

288

(1)

The EIGVAL function of MAT

288

(1)

The EIGEN function of CALL

288

(1)

Cholesky, QR, and SVD decomposition

289

(2)

Cholesky

289

(1)

290

(1)

SVD

291

(1)

Solving a system of linear equations

291

(6)

12.6 Ridge regression

293

(4)

Plotting ridge estimates

294

(3)

Appendix: Data Files

297

(12)

Index

309




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