Selecting a Math Function Call . .............................................................................................................................. 174

Selecting a Parameter Function Call ...................................................................................................................... 174

The Excel Control Dialog ........................................................................................................................................ 174

Entering a File Name .............................................................................................................................................. 175

Organizing Excel sheets . ......................................................................................................................................... 175

Setting the Vertical Scale ....................................................................................................................................... 176

Trace Descriptors ................................................................................................................................................... 176

Multiple Inputs and Outputs . ................................................................................................................................. 176

Examples ................................................................................................................................................................ 177

Simple Excel Example 1 .................................................................................................................................................... 1 77

Simple Excel Example 2 .................................................................................................................................................... 1 79

Exponential Decay Time Constant Excel Parameter (Excel Example 1) . ........................................................................... 1 81

Gated Parameter Using Excel (Excel Example 2) . ............................................................................................................. 1 82

How Does this Work? ....................................................................................................................................................... 1 83

Correlation Excel Waveform Function (Excel Example 3) . ................................................................................................ 1 83

Multiple Traces on One Grid (Excel Example 4)................................................................................................................ 1 84

Using a Surface Plot (Excel Example 5) ............................................................................................................................ 1 86

Writing VB Scripts .................................................................................................................................................. 186

Types of Scripts in VBS ..................................................................................................................................................... 1 86

Loading and Saving VBScripts .......................................................................................................................................... 1 87

The default parameter function script: explanatory notes .............................................................................................. 1 90

Scripting with VBScript . .................................................................................................................................................... 1 91

Variable Types . ................................................................................................................................................................. 1 91

Variable Names ...................................................................................................................................................... 191

Arithmetic Operators ............................................................................................................................................. 192

Results of Calculations ..................................................................................................................................................... 1 93

Order of Calculations ....................................................................................................................................................... 1 93

VBS Controls . .......................................................................................................................................................... 194

IF . . . Then . . . Else . . . End If ........................................................................................................................................... 1 94

Summary of If . . . . Then . . . . Else . ................................................................................................................................... 1 96

Select Case ....................................................................................................................................................................... 1 96

Summary of Select Case . . . . End Select .......................................................................................................................... 1 97

Do . . . Loop ...................................................................................................................................................................... 1 97

While . . . Wend . ............................................................................................................................................................... 1 98

For . . . Next ...................................................................................................................................................................... 1 98

VBS keywords and functions . ................................................................................................................................. 199

Other VBS Words . ............................................................................................................................................................. 2 00

Functions . ............................................................................................................................................................... 200

Hints and Tips for VBScripting . ............................................................................................................................... 201

Errors . ..................................................................................................................................................................... 202

Error Handling ........................................................................................................................................................ 203

Speed of Execution ................................................................................................................................................ 204

Scripting Ideas . ....................................................................................................................................................... 205

Example Waveform Script . ..................................................................................................................................... 205

Example Parameter Scripts .................................................................................................................................... 205

Debugging Scripts................................................................................................................................................... 205

Horizontal Control Variables . ................................................................................................................................. 206

Vertical Control Variables ...................................................................................................................................... 206

List of Variables Available to Scripts ...................................................................................................................... 206

Communicating with Excel from a VBScript........................................................................................................... 207

Calling MATLAB from the Instrument .................................................................................................................... 208

ERIES