Vol. 1 Issue 1

Spotlight
Our Latest Software Release
Upcoming Healthcare Trainings
Tech Tip - Sensitivity Analysis on Tables

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Welcome to our first Newsletter!


Please enjoy our first issue of The Tree Files - our new monthly newsletter.

Each monthly newsletter will be filled with tips, hints, special offers and insight to help you make the most out of your TreeAge Pro software license. The monthly production of "The Tree Files" will be full of useful information submitted from our team at TreeAge Software. So please spend some time looking around this newsletter and explore the different sections; tech tips, training, partners, monthly survey, customer stories, company news, and info on new
features and product releases.

Most importantly, be sure to give us feedback.

We welcome your suggestions about this newsletter, as well as any thoughts on ways in which we could make improvements to our software.

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Sincerely,

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Director, Marketing & Sales
Our Latest Software Release


TreeAge Pro 2006 -- Release 1.0 is now available!

The new release was available to our users on August 30th 2006 and includes many new features including changes in the following areas:

> Custom payoff names
> Variable categories
> Monte Carlo EVPI
> Monte Carlo scatterplot
> Changes to the Excel module
> Markov details report
> Tracker variables

Note: You must have an active license or maintenance agreement in order to access the features and improvements in the new release.


To see a full list of this changes please click here...


To Download the latest release, please click here...





Upcoming Healthcare Trainings
There is still room in our upcoming training programs - Register Now!

> Boston, MA - October 18-19
> Paris, France - October 18-19
> Copenhagen, Denmark - October 28 - Advanced
> Copenhagen, Denmark - Nov. 1-2
> Pittsburgh, PA - Nov. 9-10
> Barcelona, Spain - Dec. 4-5
> Sydney, Australia - Jan 15-16, 2007

To Register please visit our main training page at:

Standard Healthcare Training
or
Advanced Healthcare Training





Tech Tip - Sensitivity Analysis on Tables
Sensitivity analysis works with variables in TreeAge Pro, not tables. If the probabilities or other values in a TreeAge Pro table are uncertain, however, relatively minor adjustments can be made to allow for sensitivity analysis. The most simplistic approach, is to find every reference to the table (e.g., "tProb") and multiply by a variable (e.g., "mult_tProb") having a default definition = 1. Sensitivity analysis can be performed on the multiplier over a percentage range (e.g., from 50% to 150%). This implementation may not be flexible enough for most tables.


Varying the value column


A better approach to sensitivity analysis on tables is to add additional columns of values to the table, describing the range of parameter values for each index/row. The sensitivity analysis is then performed on a variable used to select a value column (and even interpolate between columns). Note the syntax used to reference tables with multiple value columns: myTable[ row ; col ]


How it works


In addition to two standard columns for indexes (e.g., time or age) and basecase values, two more columns are added for low and high parameter values, respectively. The "column" variable has a default definition = 1, referencing the first value column during basecase analysis. During sensitivity analysis, the "column" variable is varied from 2 to 3, over 1 interval. This results in two recalculations, using the low column and then the high column. If more intervals are desired, the table can be set to interpolate between missing rows and columns (or more columns added). Setting intervals = 2 would also analyze values halfway between the low and high columns (i.e., column = 2.5). Additional columns could also be used.



A simple example is shown in the figure below:






Whats New? - TreeAge Support Website
TreeAge Software has redesigned the support area of the company's website. The new support page includes login functionality that presents personalized support options.

These options allow you to:

> View your product license and expiration date.
> Update your customer information.
> Download the most current software available for your license.
> Renew your license.
> Access the Knowledge Base/Helpdesk system.

Login using your email and serial number. Please note that the email in the system is established when the software is first authorized and registered. If you have trouble logging in, contact support@treeage.com




Don't want to wait for next year's features?


Sign up for notification of candidate/beta releases by sending an e-mail to: beta-news@treeage.com




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