1. Excel Tutorials (MS Excel 2003)
Excel Basics
Data Analysis
Solver
XLSim
Tornado Diagram

2. Excel Basics

3. Excel tutorial: Excel Information
Excel training offered by University Computing Service:
Excel handbooks available in JBS Computer Lab
On-Line excel tutorials:
Book available from JBS library
B.V. Liengme, A Guide to Microsoft Excel for Scientists and Engineers, Arnold Publisher, London 1997.

4. Excel tutorial: Some tips
Separate data, model (containing many formulas), and results
Ensure that you document and organize your models properly so that others can easily understand your model and repeat your experiments in the future
Use absolute and relative references but not use any numbers in formulas
Ensure the model is scalable so that you can modify it easily
Validate your models carefully
Use Excel building functions such as SUMPRODUCT
Use DATA TABLE which allows you to repeatedly evaluate a particular formula within the model while systematically varying one or two input cells on which the formula depends

5. Excel tutorial: Some basic Excel functions
FILLDOWN for editing efficiency
RELATIVE and ABSOLUTE REFERENCE for creating formulas
IF for logical computations
SUM, MAX, MIN for computations
SUMPRODUCT for scaling-free calculations
RAND, RANDBETWEEN for simulation
DATA TABLE for parametric calculation/simulation
HLOOPUP, VLOOKUP for sampling

6. Excel tutorial: Data Table
Create a table with values of the parameter in one column, say A2:A101
and copy the value of the output in B1
Select/highlight the whole table A1:B101
Invoke DataData Table from Excel menu and you get a dialogue box
Select column input cell, and click the input parameter cell, and then
click OK. You get the whole data table
WARNING: In order for Data Table to work, ensure that option Automatic in ToolsOptionsCalculation is ticked.
You could have a Data Table without a parameter in simulation or a Data Table with two parameters in a data table matrix. In the former, you need to choose an empty cell for the column input cell and in the latter, you need to correctly choose cells for both column input cell and row input cell.

7. Excel Data Analysis

8. Excel tutorial: Install Analysis ToolPak
Open Excel
Go to ToolsAdd-Ins, tick Analysis ToolPak, and then click OK
Data Analysis will appear in your Tools menu
You may need the computer installation CD to finish this task

9. Excel tutorial: Create a histogram (frequency table)
Open Excel with your data
Create bins, say, 0, 2500, 5000, ..., 7500, ... arranged in a column
Go to ToolsData Analysishistogram. You get a dialogue window
In Input Range: Select all data area. To highlight or select a whole rectangular area (control-shift and right-arrow to populate the row, control-shift and down-arrow to populate the column)
In Bin Range: Select the bin range
Output options: Select new workbook and chart output for charts too
Click OK

10. Excel Solver

11. Excel tutorial: Install Solver Open Excel Install Solver:
Tools->Add-Ins->Solver Add-In->OK
You will see Solver in Tools menu

12. Solver- design and build models
Excel tutorial:
Solver- design and build models
Arrange data
Allocate Change Cell
Allocate Target Cell
Allocate Constraint Cells
Assign proper tags
Add proper comments
Add proper colours

13. Excel tutorial: Link to Solver Go to Tools->Solver Set Target Cell
Equal To
By Changing Cells
Subject to the Constraints: Add, Change, Delete
Set Solver Options

14. Solver Options and Solution Reports
Excel tutorial:
Solver Options and Solution Reports
Max Time
Iterations
Tolerance
Assume Linear Model
Use Automatic Scaling
Assume Non-Negative

15. Excel tutorial:
View Solver Reports
Answer
Sensitivity
Limits

16. Excel tutorial: Solver Enhancements
Insert names: Highlight the area and then insert name
SUMPRODUCT(row_variables, row_constraint_i)
Add comments and proper tags

17. Excel XLSim

18. Excel tutorial: Install XLSim
Download XLSim from or install XLSim from the CD of the book of Sam Savage: Decision Making with Insight
Installation is accomplished by running Setup.exe
Launch Excel
Open XLSim.xla from File menu of Excel
Select Tools  Add-Ins and then select XLSim. You should see Simulate on your Excel menu. If it does not, it won’t work
You may also need to (1) Copy XLSim.xla into Excel Library or MSOffice\Library directory (2) Copy SIM5016.DLL and SIM5032.DLL to Windows\System directory

19. Excel tutorial: Conduct simulation
Go to Simulate  Simulation (You are given an editing window)
Add outputs
Choose simulation size
Click OK
You get another worksheet called Statistic
Go to Simulate  Graphs
Choose Bin Size for histograms
Click histogram to generate a histogram
Click cumulative to generate a CD graph

20. Excel tutorial: Parametric simulation
Determine which parameter for your sensitivity analysis
Select a few values for your parameter and store them in your worksheet
Go to Simulate  Parameterized Sim
You get a new dialog window
Select your output cell and give a name
Select the number of trials
Select the parameter cell used in your model
Give a name for your parameter
Select a range of values for your parameter that you stored before
Save this parametric simulation in a cell

21. Excel tutorial: Parametric simulation
You can save and load parametric simulations
After creating or loading a parametric simulation, click OK for experiments
Go to Simulate  Common Graphs in order to plot either histograms or CD graphs in one diagram. You could have a choice of 3D histograms
By varying parameter values or changing ranges of parameter values, you can conduct and refine your parametric simulation experiments
For more detail, see Chapters 2 and 3 of Sam Savage,
Decision Making with Insight

22. Excel Tornado Diagrams

23. Experiment with Tornado Diagram
Excel tutorial:
Experiment with Tornado Diagram
We use Customer Manag.xls as an example and assume that you have already done your calculations in workbook “Sensitivity”. We want to test how the system output is sensitive to various inputs.
Open Customer Manag.xls
Move to workbook “Sensitivity”
Open Tornado.xls and you see “TM” tab in the Excel menu bar
Go to TMTornado Diagram and window “Tornado Dialog” pops up

24. Experiment with Tornado Diagram
Excel tutorial:
Experiment with Tornado Diagram
Move your curser to the box underneath “Data Range”
Select range A22:D25, which contains input parameters and the ranges of values in a pre-specified format. The first row of this matrix is for labels: Assumptions, Base, Low, High, each of the remaining rows are for a particular input parameter. For each row other than the first, the first column stores the parameter name, the second, third and fourth store its base, low and high values.
Move your curser to the box underneath “Result Cell”
Select P13, which stores the system output
Click “OK”
We are done!