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E-122
Calculation formula used for each command
A = – B
(
)
– C
(
)
n
Σy
n
Σx
n
Σx
2
B =
S
xx
.
S
x
2
x
2
– (S
xx
2
)
2
S
xy
.
S
x
2
x
2
– S
x
2
y
.
S
xx
2
C =
S
xx
.
S
x
2
x
2
– (S
xx
2
)
2
S
x
2
y
.
S
xx
– S
xy
.
S
xx
2
(
Σx
)
2
Sxx
=
Σx
2
–
n
Sxy
=
Σxy
–
n
(
Σx
.
Σy
)
Sxx
2
=
Σx
3
–
n
(
Σx
.
Σx
2
)
Sx
2
x
2
=
Σx
4
–
n
(
Σx
2
)
2
Sx
2
y
=
Σx
2
y
–
n
(
Σx
2
.
Σy
)
m
1
=
2C
– B +
B
2
– 4C
(
A
– y
)
m
2
=
2C
– B –
B
2
– 4C
(
A
– y
)
n = A + Bx + Cx
2
Reg Sub-menu (17(S-MENU)7(Reg))
Select this
When you want to obtain this:
menu item:
1A Regression coefficient constant term A
2B
Linear coefficient B of the regression
coefficients
3C
Quadratic coefficient C of the regression
coefficients
4m1 Estimated value of x1
5m2 Estimated value of x2
6n Estimated value of y