Texas Instruments TI-89 Titanium User Manual page 814

LinReg
MATH/Statistics/Regressions menu
[
list1 list2
LinReg ,
Calculates the linear regression and updates all the
system statistics variables.
All the lists must have equal dimensions except for
.
list5
represents xlist.
list1
represents ylist.
list2
represents frequency.
list3
represents category codes.
list4
represents category include list.
list5
Note:
list1
c1–c99 (columns in the last data variable shown in
the Data/Matrix Editor).
variable name and cannot be c1–c99.
@list()
MATH/List menu
⇒
( list1 ) list
list
Returns a list containing the differences between
consecutive elements in
subtracted from the next element of
resulting list is always one element shorter than the
original
list1
list4mat()
MATH/List menu
list elementsPerRow
list4mat( [,
Returns a matrix filled row-by-row with the elements
from .
list
elementsPerRow
elements per row. Default is the number of elements
in (one row).
list
If does not fill the resulting matrix, zeros are
list
added.
ln() @
2 x key
) ⇒
expression1
ln(
) ⇒
list1 list
ln(
Returns the natural logarithm of the argument.
For a list, returns the natural logarithms of the
elements.
Appendix A: Functions and Instructions
]
list3 list4 list5
, [ ] [, , ]
through must be a variable name or
list4
does not have to be a
list5
. Each element of
list1
list1
.
]) ⇒
matrix
, if included, specifies the number of
H
x key
expression
In function graphing mode:
{0,1,2,3,4,5,6}! L1 ¸
{0,2,3,4,3,4,6}! L2 ¸
LinReg L1,L2 ¸
ShowStat ¸
¸
Regeq(x)"y1(x) ¸
NewPlot 1,1,L1,L2 ¸
¥ %
@list({20,30,45,70}) ¸
is
list1
. The
list4mat({1,2,3}) ¸
list4mat({1,2,3,4,5},2) ¸
ln(2.0) ¸
If complex format mode is
ln({ë 3,1.2,5}) ¸
If complex format mode is
ln({ë 3,1.2,5}) ¸
{ln(3) + pø
{0 1 2
{0 2 3
{10,15,25}
[1 2 3]



.693
:
REAL
Error: Non-real result
:
RECTANGULAR
i .182 ... ln(5)}
... }
... }
Done
Done
Done

1 2

3 4

5 0
...
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