TreePlan helps you build a decision tree diagram in
an Excel worksheet using dialog boxes.
Decision trees are useful for
analyzing sequential decision problems under uncertainty.
automatically includes formulas for summing cash flows to obtain outcome
values and for calculating rollback values for determining optimal
SensIt performs sensitivity analysis on your
Excel worksheet what-if model.
SensIt automates sensitivity analysis and
creates simple plots, spider charts, and tornado charts.
In a decision
situation, sensitivity analysis helps you determine which of your input
assumptions are critical so that you know where to focus your effort for
gathering more information or reducing uncertainty.
RiskSim provides random number generator functions
as inputs for your Excel worksheet model, automates Monte Carlo
simulation, and creates charts.
RiskSim automates the simulation by
trying thousands of what-ifs consistent with your assessment of the
uncertainties and displays the results in both histogram and cumulative
TreePlan ToolKit is the bundle of
all three add-ins: TreePlan, SensIt, and RiskSim.
WhatIf ToolKit is the bundle of
SensIt and RiskSim for analyzing a spreadsheet what-if model.
Better Histogram is a free add-in
for creating a better histogram from data on a worksheet.