Casio CFX-9800G-w Owners Manual - Page 71

Eider, Eeditaerseyes

Page 71 highlights

MPowerRegmssion The power regression formula is defined as y = A-x2 (Iny=lnA+ Blnx). • To input data for power regression Input data using the same procedures as described for linear regression on page 104. • To delete data Delete data using the same procedures as described for linear regression on page 104. The following shows the difference between linear regression results and power regression results. Linear Regression Power Regression Ex £Inx Ex2 E(Inx)2 Ey Elny Ey2 E(Iny)2 Exy £Inxdny •To Enter the Regression Mode with Data Storage Highlight the REG icon on the Main Menu and then press El. Press E(SET) to make the set up display appear. Next, use the procedure on page 24 to specify the type of regression you want to perform. I LINrI33-hEIMM • EIDER Use the procedure on page 23 specify STO for the statistical data (S-data). H06- Press EMI, and the paired-variable statistical.menu appears on the display. *This is the display that appears after you select linear (LIN) regression. -RUN / LIN-REG S-data :STO S7graph:NON8-plot :ORANGE G-type :REC/CON Angle . :Dea DisplaSP:Nrml - 1: 1FFICIIEREP IDEEJECIE The following are the operations that are available from the functioridisplay at the bottom of the screen. Press the function key below the operation you want to perform. E(DT) Inputs data E(EDIT) Displays an edit function menu E(,) Po (DEV) Inputs comma between x- and y-data Statistical menu E(E) Sum data menu E(REG) Regression/estimated value menu •Ex2, £x, n, Ey2, Ey, and Exy data are stored in their own memory area, and so they do not use value memories. • To input data The following input procedures can be used to input data for linear, logarithmic, exponential, and power regression. Example 1 To input the data 10/20, 20/30, 20/30, 40/50 Before actually beginning data input, use the following sequence to delete any statistical data stored in memory. E(EDIT)a(ERS)E(YES) 10E(,)20E(DT) 20E(,)30E(DT)E(DT) 40E(,)50E(DT) Example 2 To input the data 10/20, 20/30, 20/30, 20/30, 20/30, 20/30, 40/50 10E(,)201:1(DT) 20E(,)30(=IMSE(DT) 40O(,)50 Fr Note that you can input multiple data pairs by entering the data, pressing and then entering the number of data pairs. • To edit data To change, delete, insert, or clear data, press E(EDIT) to display the edit function menu and then perform the same procedures as those described for single-variable data on • pages 99 to 101. -107-

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MPowerRegmssion
The
power
regression
formula
is
defined
as
y
=
A
-x
2
(Iny=lnA+
Blnx).
To
input
data
for
power
regression
Input
data
using
the
same
procedures
as
described
for
linear
regression
on
page
104.
To
delete
data
Delete
data
using
the
same
procedures
as
described
for
linear
regression
on
page
104.
The
following
shows
the
difference
between
linear
regression
results
and
power
regres-
sion
results.
Linear
Regression
Power
Regression
Ex
£Inx
Ex
2
E(Inx)
2
Ey
Elny
Ey
2
E(Iny)
2
Exy
£Inxdny
•To
Enter
the
Regression
Mode
with
Data
Storage
Highlight
the
REG
icon
on
the
Main
Menu
and
then
press
El.
Press
E(SET)
to
make
the
set
up
display
appear.
Next,
use
the
procedure
on
page
24
to
specify
the
type
of
regression
you
want
to
perform.
I
LIN
rI
33
-
hEIMM
EIDER
Use
the
procedure
on
page
23
specify
STO
for
the
statistical
data
(S
-data).
Press
EMI,
and
the
paired
-variable
statistical.menu
appears
on
the
display.
*This
is
the
display
that
appears
after
you
select
linear
(LIN)
regression.
IDEEJECIE
The
following
are
the
operations
that
are
available
from
the
functioridisplay
at
the
bottom
of
the
screen.
Press
the
function
key
below
the
operation
you
want
to
perform.
E(DT)
Inputs
data
E(EDIT)
Displays
an
edit
function
menu
E(,)
Inputs
comma
between
x-
and
y
-data
Po
(DEV)
Statistical
menu
E(E)
Sum
data
menu
E(REG)
Regression/estimated
value
menu
-RUN
/
LIN-REG
S
-data
:STO
S7graph:NON-
8-plot
:ORANGE
G
-type
:REC/CON
Angle
.
:Dea
DisplaSP:Nrml
-
1:
1FFICIIEREP
•Ex
2
,
£x,
n,
Ey
2
,
Ey,
and
Exy
data
are
stored
in
their
own
memory
area,
and
so
they
do
not
use
value
memories.
To
input
data
The
following
input
procedures
can
be
used
to
input
data
for
linear,
logarithmic,
exponential,
and
power
regression.
To
input
the
data
10/20,
20/30, 20/30,
40/50
Before
actually
beginning
data
input,
use
the
following
sequence
to
delete
any
statistical
data
stored
in
memory.
E(EDIT)a(ERS)E(YES)
10E(,)20E(DT)
20E(,)30E(DT)E(DT)
40E(,)50E(DT)
Example
1
Example
2
To
input
the
data
10/20,
20/30,
20/30, 20/30, 20/30,
20/30,
40/50
10E(,)201:1(DT)
20E(,)30(=IMSE(DT)
40O(,)50
Fr
Note
that
you
can
input
multiple
data
pairs
by
entering
the
data,
pressing
and
then
entering
the
number
of
data
pairs.
To
edit
data
To
change,
delete,
insert,
or
clear
data,
press
E(EDIT)
to
display
the
edit
function
menu
and
then
perform
the
same
procedures
as
those
described
for
single
-variable
data
on
pages
99
to
101.
H06-
-107-