HP 10413 Datasheet download pdf (Page 158)

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Importing from a frequency table

The import ( ) facility of the Inference aplet has a small weakness in that

it can’t import from paired columns defining a frequency table.

For example, suppose we use columns C1 and

C2 to define a frequency table, ensuring that it

is registered in the SYMB view as shown right.

If you now change to the NUM SETUP view of

the Inference aplet and try to use the import

facility you will find that you can import the

mean and standard deviation from either

column C1 or C2 but not from both at once.

What’s needed, of course, is a way to expand

the paired frequency table columns into a

single column listing all values. The program shown below will do this for

you. It is set up to take a frequency table defined in columns C8 and C9 and

convert them into a single column stored in column C0. The program uses

columns 8, 9 & 10 because there is seldom data in them.

To create it, go to the Program Catalog view and press the key.

Enter any name you want, such as ‘CCreate’. Now type in the code below.

We’ll now use this program to expand the

frequency table I built earlier. The first thing

we need to do is to move columns C1 and C2

to C8 and C9. Rather than re-typing, this can

be done in the HOME view as shown.

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HP 10413 Datasheet Page 158