468 Appendix A: Functions and Instructions
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 468 of 132
MedMed MATH/Statistics/Regressions menu
MedMed list1, list2[, [list3] [, list4, list5]]
Calculates the median-median line and
updates all 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:
{0,1,2,3,4,5,6}!L1 ¸ {0 1 2 ...
}
{0,2,3,4,3,4,6}!L2 ¸ {0 2 3 ...
Me
d
Me
d
L
1
,L2
¸
Done
S
h
owStat
¸
¸
Regeq
(
x
)
!y
1(
x
)
¸
Done
NewP
l
ot
1
,
1
,L
1
,L2
¸
Done
¥%
mid() MATH/String menu
mid(sourceString, start[, count]) ⇒ string
Returns count characters from character
string sourceString, beginning with character
number start.
If count is omitted or is greater than the
dimension of sourceString, returns all
characters from sourceString, beginning with
character number start.
count must be ‚ 0. If count = 0, returns an
empty string.
mid("Hello there",2) ¸
"e
ll
o t
h
ere"
mid("Hello there",7,3) ¸
"t
h
e"
mid("Hello there",1,5) ¸
"He
ll
o"
mid("Hello there",1,0) ¸
""
mid(sourceList, start [, count]) ⇒ list
Returns count elements from sourceList,
beginning with element number start.
If count is omitted or is greater than the
dimension of sourceList, returns all elements
from sourceList, beginning with element
number start.
count must be ‚ 0. If count = 0, returns an
empty list.
mid({9,8,7,6},3) ¸{7 6}
mid({9,8,7,6},2,2) ¸{8 7}
mid({9,8,7,6},1,2) ¸{9 8}
mid({9,8,7,6},1,0) ¸{}
mid(sourceStringList, start[, count]) ⇒ list
Returns count strings from the list of strings
sourceStringList, beginning with element
number start.
mid({"A","B","C","D"},2,2) ¸
{"B" "C"}