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The normal system used to generate ranges is a gaussian system. This is represented by the property:

There are 2 applets based on this formula.

Authoring Notes

The first is applet is Helper 2.

Number of Items is the number of rows in the item entry list.

Title is the text that appears at the top of the applet.

Label 1 is the label for the entry field.

Label 2 is the label for the result field.

Decimals is the number of decimal places in the result.

Units is the units field, shown after the result.

There are then 3 items for each row of data.  following the format item # field name. Value is the entry value to generate the random numbers. Min result is the -3 standard deviation value for the random number generator. and Max result is the +3 standard deviation value for the random number generator. 99% of all random numbers will fall between these 2 values.

You do not need to have a row for every entry value. In the example above, the user can enter values between 5 and 10. Any entry for 6 through 9 will use the random generator as specified by the 5 entry. It is important that all rows have the value fields in ascending order.

<APPLET CODEBASE = "." CODE = "rps.rps_Helper2.class" NAME = "TestApplet" WIDTH = 350 HEIGHT = 100 HSPACE = 2 VSPACE = 2 ALIGN = middle>
<PARAM NAME = "numberOfItems" VALUE = "2">
<PARAM NAME = "title" VALUE = "Test">
<PARAM NAME = "label1" VALUE = "Source">
<PARAM NAME = "label2" VALUE = "Result">
<PARAM NAME = "decimals" VALUE = "2">
<PARAM NAME = "units" VALUE = "meters">
<PARAM NAME = "item0value" VALUE = "5">
<PARAM NAME = "item0minResult" VALUE = "10">
<PARAM NAME = "item0maxResult" VALUE = "50">
<PARAM NAME = "item1value" VALUE = "10">
<PARAM NAME = "item1minResult" VALUE = "20">
<PARAM NAME = "item1maxResult" VALUE = "90">
</APPLET>

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03 February, 2000 (c) Brian Yap All rights reserved.