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840 Appendix A: Functions and Instructions
Logistic MATH/Statistics/Regressions menu
Logistic
list1
,
list2
[ , [
iterations
] , [
list3
] [,
list4
,
list5
] ]
Calculates the logistic regression 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.
iterations
specifies the maximum number of times
a solution will be attempted. If omitted, 64 is
used. Typically, larger values result in better
accuracy but longer execution times, and vice
versa.
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:
{1,2,3,4,5,6}!L1 ¸ {1 2 3 …}
{1,1.3,2.5,3.5,4.5,4.8}
!L2
¸
{1 1.3 2.5 …}
Logistic L1,L2
¸ Done
ShowStat
¸
¸
regeq(x)
!y1(x) ¸ Done
NewPlot 1,1,L1,L2
¸ Done
¥%
„9
Loop CATALOG
Loop
block
EndLoop
Repeatedly executes the statements in
block
. Note
that the loop will be executed endlessly, unless a
Goto or Exit instruction is executed within
block
.
block
is a sequence of statements separated with
the “:” character.
Program segment:
©
:1
! i
:Loop
: Rand(6)
! die1
: Rand(6)
! die2
: If die1=6 and die2=6
: Goto End
: i+1
! i
:EndLoop
:Lbl End
:Disp "The number of rolls is", i
©