172
CHAPTER 7
for US
2. Regression
• Regression curves are selected from the [D REG] menu in the statistic mode.
• Check the menu contents.
Press
D
to display the primary screen of the REG menu. There are two
other screens that can be accessed by moving the cursor pointer to the submenu
side (the right half of the screen displaying “01 Med_Med”, etc.) and pressing
Å
≥
Å
≥
.
Primary screen
Secondary screen
Third screen
Function name
Description
Regression formula Parameter
01 Med_Med
Finds the regression curve
using the median-median
method.
02 Rg_ax+b
Finds the regression curve
using the linear equation
(linear regression-1).
03 Rg_a+bx
Finds the regression curve
using the linear equation
(linear regression-2).
04 Rg_x
2
Finds the regression curve
using the second degree
polynomial (quadratic
regression).
05 Rg_x
3
Finds the regression curve
using the third degree
polynomial (cubic regres-
sion).
06 Rg_x
4
Finds the regression curve
using the fourth degree
polynomial (quartic regres-
sion).
y=ax+b
a,b
y=ax+b
a, b, r, r
2
y=a+bx
a, b, r, r
2
y=ax
2
+bx+c
a, b, c, R
2
y=ax
3
+bx
2
+cx+d
a, b, c, d, R
2
y=ax
4
+bx
3
+cx
2
+dx+e a, b, c, d, e, R
2
EL-9650-(07)En (157-177)
8/1/00, 9:06 AM
172
Summary of Contents for EL-9650
Page 10: ...viii ...
Page 46: ...36 CHAPTER 1 ...
Page 230: ...220 CHAPTER 9 ...
Page 268: ...258 CHAPTER 12 ...
Page 349: ...339 APPENDIX When coordinate system is Rect param or polar ...
Page 350: ...340 APPENDIX When coordinate system is Seq F STYLE2 E STYLE1 ...
Page 352: ...342 APPENDIX ...
Page 353: ...343 APPENDIX on Program screen ...
Page 354: ...344 APPENDIX ...
Page 355: ...345 APPENDIX ...
Page 356: ...346 APPENDIX ...
Page 357: ...347 APPENDIX ...
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