Table distributions allow you to specify the values that will be sampled along with the probability of sampling each value. This can be very useful for specifying characteristics within a heterogeneous cohort.

Table distributions require that sum of all probabilities be equal to 1 within a tolerance of 1/1,000,000,000. Earlier versions of TreeAge Pro allowed for a greater tolerance. The following instructions will help you identify and fix a probability sum error within the table.

- Identify the table causing the distribution error.
- In the Tables View, select the table.
- Click the copy button in the toolbar over the table data (not the table list) in the Tables View.
- Open a new Excel document.
- Paste the data into Excel.
- Create a sum field beneath the probability column.
- Adjust the number of decimal places for the column to see the error.
- Adjust the last row of the table by adding the required difference so that the sum is exactly 1.00000000000.
- Select all the table data in Excel including the column headings.
- Copy the data.
- In the TP Tables View, click the paste button in the toolbar over the table data (not the table list) in the Tables View.

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