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Data, A matrix – HP 48g Graphing Calculator User Manual

Page 274

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4. Enter the data. Use a separate row for each individual record and

a separate column for each variable within a record. For example,

a data set containing the height, weight, and age for each of 100

people, would be entered as 100 rows of three columns each.

5. Press

(

enter

!

when you’ve finished. The data matrix is now

temporarily stored in SDAT;. To confirm that you want it stored

there,

press

UK

; to cancel the

whole operation,

press CFlNCL;

to edit it further, press E

again.

To store the array in

i /i 1 /

in a different wariable:

21

1. Press (r^(STAT) - to open the

S I N G

S T A T I S T I C S

form. (Actually, you may use any of the STAT

application input forms.) You should see the current statistics

matrix partially displayed in the SDfiT field.

2. Press

(

nxt

1

CfiLC to bring up the stack.

3. Enter a name for the matrix onto level 1 (using the ’ delimiters),

and press fSTO).

4. Press OK to return to the SINGLE-VARIABLE STATISTICS

To

enter statistical

data

into

a matrix:

1. Press

matrix

)

to begin the MatrixWriter.

2.

Enter the data. Use a separate row for each individual record and

a separate column for each variable within a record. For example,
a data set containing the height, weight, and age for each of 100

people, would be entered as 100 rows of three columns each.

3. Press

(

enter

)

when you’ve finished entering the data.

4. Enter a name for the data matrix onto level 1 of the stack, and

press

fSTO

).

T ? cJasfns'aiT s siidrLi. :i’e «-nn'eni .staiisUcs iriEfri'::

1. Press (f^fSTAT 1 OK to open the S

INGLE-

VAR I

ABLE

STATUBTICS

form. (Actually, you may use any of the STAT

application input forms.)

2.

Optional: If there is already data in the

2DATT

field either delete

it (press

(

del

)

lm

\ ) or save the data by storing it in a variable

first and then deleding it.

3. With the highlight on the

¿DATs

field, press

CHuO:::J

and use the

arrow keys to highlight the matrix you wish to make the current

statistics matrix.

21-2 Statistics and Data Analysis

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