Inforum Help Documentation Release 1.08 Inforum Feb 22, 2021 CONTENTS 1 An Introduction to Inforum 3 1.1 An Introduction to G7 ..........................................3 1.2 G7: New for 2020............................................4 1.3 G7: New for 2019............................................4 1.4 G7: New for 2018............................................4 1.5 G7: New for 2017............................................5 1.6 G7: New for 2016............................................6 1.7 G7: New for 2015............................................7 1.8 G7: New for 2014............................................9 1.9 G7: New for 2013............................................ 10 1.10 G7: New for 2012............................................ 12 1.11 G7: New for 2011............................................ 14 1.12 G7: New for 2010............................................ 15 1.13 G7: New for 2009............................................ 15 1.14 G7: New for 2008............................................ 16 1.15 G7: New for 2007............................................ 17 2 G7 Users’ Guide 19 2.1 Getting Started.............................................. 19 2.1.1 What is G7?........................................... 19 2.1.2 Installation........................................... 20 2.1.3 Starting G7 ........................................... 22 2.1.4 Looking at a Series in a Data Bank............................... 23 2.1.5 The G7 Editor.......................................... 25 2.1.6 The G7 Command Reference.................................. 26 2.1.7 The 11 Basic G7 Commands.................................. 27 2.1.8 Conventions........................................... 29 2.1.9 Basic Regression........................................ 29 2.1.10 Command Files and the G7 Editor............................... 30 2.1.11 Saving Results......................................... 31 2.1.12 Setting Graph Styles...................................... 32 2.1.13 Command Files Within Command Files............................ 34 2.1.14 Setting the Properties of the Results Area........................... 34 2.2 Data Banks................................................ 34 2.2.1 Assigned Data Banks...................................... 34 2.2.2 The Workspace Bank: Making, Compressing, and Splicing Banks.............. 37 2.3 G7 Commands and Scripts........................................ 38 2.3.1 Dates and Frequencies..................................... 38 2.3.2 Forming Variables....................................... 40 2.3.3 G7 Functions.......................................... 42 i 2.3.4 Command Files, Groups, and Do Loops............................ 46 2.3.5 Flow Control.......................................... 51 2.3.6 User-specified Error Handling................................. 53 2.3.7 Strings in G7 .......................................... 54 2.3.8 Variables and Arguments in G7 ................................. 56 2.3.9 Reading Data Into G7 ...................................... 60 2.3.10 Writing ASCII Data From G7 ................................. 62 2.3.11 How To Read and Write in Excel Format with G7 ....................... 64 2.3.12 Examples For Using the XL Commands............................ 76 2.3.13 Writing Data To Lotus WK1.................................. 78 2.3.14 Making Tables......................................... 79 2.3.15 Drawing Graphs......................................... 80 2.3.16 Miscellaneous Commands and Other Information....................... 85 2.4 Regression in G7 ............................................. 87 2.4.1 Ordinary Regression...................................... 87 2.4.2 Soft Constraints......................................... 91 2.4.3 Distributed Lags........................................ 92 2.4.4 Regression Tests........................................ 92 2.4.5 Hildreth-Lu Technique for Autocorrelation Correction.................... 93 2.4.6 ARIMA Techniques....................................... 93 2.4.7 Seemingly Unrelated Regressions............................... 94 2.4.8 Common-Coefficient, Panel-Data, or Pooled Regressions................... 94 2.4.9 Non-linear Regression..................................... 95 2.4.10 2SLS and 3SLS......................................... 97 2.5 Modeling with G7 ............................................ 98 2.5.1 Building a Model........................................ 98 2.5.2 Running a Model - Deterministic Simulation......................... 100 2.5.3 Optimizing a Model....................................... 103 2.5.4 Stochastic Simulation...................................... 104 2.5.5 Graphing Model Results.................................... 104 2.5.6 Tabulating Model Results or Data............................... 105 2.5.7 Model Building......................................... 108 2.5.8 Running an InterDyme Model in G7 .............................. 109 2.6 Vectors And Matrices.......................................... 111 2.6.1 Working with Vam Files in G7 ................................. 111 2.6.2 The Vam Configuration File.................................. 112 2.6.3 Creating, Assigning, Setting Defaults, and Closing a Vam File................ 113 2.6.4 Input of Time Series into Vam Files.............................. 114 2.6.5 Input of Vectors into Vam Files................................. 115 2.6.6 Input of Matrices to Vam Files................................. 118 2.6.7 Display of Vam File Data.................................... 120 2.6.8 Vector Calculations....................................... 121 2.6.9 Matrix Calculations in VAM files................................ 122 2.6.10 Groups of Sector Numbers................................... 124 2.6.11 The Resector Command.................................... 125 2.6.12 Linear Interpolation of Vectors and Matrices.......................... 127 2.6.13 Moving Vectors and Matrices by Indexing........................... 128 2.6.14 Methods of Scaling....................................... 129 2.6.15 The Scale Command...................................... 131 2.6.16 The Ctrl Command....................................... 131 2.6.17 Methods of Balancing Matrices................................. 132 2.6.18 Matrix Balancing by the Ordinary RAS Method........................ 132 2.6.19 Balancing Matrices with Uncertain Totals........................... 133 2.6.20 Balancing Entire Input-Output Tables............................. 134 ii 2.6.21 Balancing Matrices with Externally Imposed Preconditions.................. 134 2.6.22 The Coef, Flow, Getsum, Load, and Store Commands..................... 136 2.6.23 Writing Vam File Data to ASCII Files............................. 136 2.6.24 Titles for Vam Files....................................... 137 2.6.25 Regressions on Industry Data.................................. 137 2.6.26 Vam2Vam – Selective Copying From One Vam File to Another................ 139 2.6.27 VamToG – Creating a G7 bank From Series in a Vam File................... 140 2.7 Other G7 Documentation........................................ 140 3 G7 Reference Manual 141 3.1 G7 Commands: Symbols........................................ 141 3.2 G7 Commands: A............................................ 141 3.3 G7 Commands: B............................................ 144 3.4 G7 Commands: C............................................ 145 3.5 G7 Commands: D............................................ 148 3.6 G7 Commands: E............................................ 151 3.7 G7 Commands: F............................................ 152 3.8 G7 Commands: G............................................ 157 3.9 G7 Commands: H............................................ 160 3.10 G7 Commands: I............................................. 162 3.11 G7 Commands: L............................................ 166 3.12 G7 Commands: M............................................ 171 3.13 G7 Commands: N............................................ 177 3.14 G7 Commands: P............................................ 179 3.15 G7 Commands: Q............................................ 182 3.16 G7 Commands: R............................................ 183 3.17 G7 Commands: S............................................ 188 3.18 G7 Commands: T............................................ 194 3.19 G7 Commands: U............................................ 197 3.20 G7 Commands: V............................................ 197 3.21 G7 Commands: W............................................ 203 3.22 G7 Commands: X............................................ 204 3.23 G7 Commands: Y............................................ 217 3.24 G7 Commands: Z............................................ 218 4 G7 Tutorial 219 4.1 G7 Tutorial................................................ 219 4.2 The G7 Main Window and Some Basic G7 Commands......................... 220 4.3 The G7 Command Box and Button Bar................................. 224 4.4 More on the f Command......................................... 225 4.5 Running G7 Commands in Batch (Add files).............................. 225 4.6 Using the G7 Editor........................................... 226 4.7 Using Compare to Make Tables..................................... 227 4.8 Where to Go to Learn More....................................... 231 5 Compare Manual 233 5.1 Introduction to Compare ......................................... 233 5.2 Preparing the Compare Stub File.................................... 233 5.3 Choosing