File Exchange
Try Origin for Free
The Origin Forum
Home
|
Profile
|
Register
|
Active Topics
|
Members
|
Search
|
FAQ
|
Send File to Tech support
All Forums
Origin中文论坛
Origin 中文论坛 (Chinese Origin Forum)
FAQ:拟合时如何处理偏离点?
Note:
You must be registered in order to post a reply.
To register,
click here
. Registration is FREE!
Screensize:
640 x 480
800 x 600
1024 x 768
1280 x 1024
UserName:
Password:
Anti-Spam Code:
Format Mode:
Basic
Help
Prompt
Format:
Font
Andale Mono
Arial
Arial Black
Book Antiqua
Century Gothic
Comic Sans MS
Courier New
Georgia
Impact
Lucida Console
Script MT Bold
Stencil
Tahoma
Times New Roman
Trebuchet MS
Verdana
Size
1
2
3
4
5
6
Color
Black
Red
Yellow
Pink
Green
Orange
Purple
Blue
Beige
Brown
Teal
Navy
Maroon
LimeGreen
Message:
* HTML is OFF
*
Forum Code
is ON
Smilies
Check here to include your profile signature.
T O P I C R E V I E W
yuki_wu
Posted - 05/17/2016 : 03:22:45 AM
Q:用户进行曲线拟合时,如何处理明显偏离趋势的数据点呢?
A:用户屏蔽(Mask)或者对数据点加权重:
1.若需屏蔽某数据点,可执行:
i.单击选择曲线,当曲线被激活后,单击选择偏离趋势的数据点;
ii.右键选择
Mask
,数据点变为红色即表明数据点被屏蔽;
iii.在执行拟合操作时,该屏蔽点即会被忽略。
2.若需为数据增加权重,可执行:
i.在数据所在的worksheet增加一列,然后键入各数据点对应的权重;
ii.对于Linear Fit,可在选项卡
Input
的Y Error中选择权重值,然后在选项卡
Fit Control
中选择加权方式。
iii.对于Nonlinear Curve Fit,可在选项卡
Setting:Data Selection
中Input的y展开项中选择权重值和加权方式
关于加权方式的选择详细可参考:
http://www.originlab.com/doc/Origin-Help/FIt-with-Err-Weight
The Origin Forum
© 2020 Originlab Corporation
Snitz Forums 2000