Texas Instruments TITANIUM TI-89 - Manual (Page 125)

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18. Return to the current session of the
Data/Matrix Editor .
Press O D ¸ ¸
19. Enter a title for column 3. Define
column 3’s header as the values
predicted by the MedMed line.
To enter a title, the cursor must highlight
the title cell at the very top of the column.
† lets you define a header from
anywhere in a column. When the cursor is
on a header cell, pressing
† is not
required.
Press B B C C 2 ™ MED j
¸ † Y1 c j C1 d ¸
20. Enter a title for column 4. Define
column 4’s header as the residuals
(difference between observed and
predicted values) for MedMed.
Press B C 2 ™ RESID j ¸
j C2
| j C3 ¸
21. Enter a title for column 5. Define
column 5’s header as the values
predicted by the LinReg line.
Press B C C 2 ™ LIN j ¸
† Y2 c j C1 d ¸
Steps and keystrokes Display