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Appendix A: Functions and Instructions 487
8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 487 of 132
QuartReg
MATH/Statistics/Regressions menu
QuartReg
list1
,
list2
[
,
[
list3
] [
,
list4
,
list5
]
]
Calculates the quartic polynomial regression
and updates the system statistics variables.
All the lists must have equal dimensions
except for
list5
.
list1
represents xlist.
list2
represents ylist.
list3
represents frequency.
list4
represents category codes.
list5
represents category include list.
Note:
list1
through
list4
must be a variable
name or c1–c99 (columns in the last data
variable shown in the Data/Matrix Editor).
list5
does not have to be a variable name and
cannot be c1–c99.
In function graphing mode:
{
ë
2,
ë
1,0,1,2,3,4,5,6}
!
L1
¸
{
ë
2
ë
1 0
...
}
{
4,3,
1
,2,4,2,
1
,4,6
}
!
L2
¸
{4 3 1
...
}
QuartReg L
1
,L2
¸
Done
S
h
owStat
¸
¸
Regeq(x)"y1(x)
¸
Done
NewP
l
ot
1
,
1
,L
1
,L2
¸
Done
¥%
R
4
P
q
()
MATH/Angle menu
R
4
P
q
(
xExpression
,
yExpression
)
⇒
expression
R
4
P
q
(
xList
,
yList
)
⇒
list
R
4
P
q
(
xMatrix
,
yMatrix
)
⇒
matrix
Returns the equivalent
q
-coordinate of the
(
x,y
) pair arguments.
Note: The result is returned as either a
degree or radian angle, according to the
current angle mode.
In Degree angle mode:
R8Pq(x,y)
¸
In Radian angle mode:
R4Pq(3,2)
¸
R4Pq([3,-4,2],[0,pà4,1.5])
¸
R
4
Pr()
MATH/Angle menu
R
4
Pr (
xExpression
,
yExpression
)
⇒
expression
R
4
Pr (
xList
,
yList
)
⇒
list
R
4
Pr (
xMatrix
,
yMatrix
)
⇒
matrix
Returns the equivalent
r
-coordinate of the
(
x,y
) pair arguments.
In Radian angle mode:
R4Pr(3,2)
¸
R4Pr(x,y)
¸
R4Pr([3,-4,2],[0,pà4,1.5])
¸