The Origin Forum
File Exchange
Try Origin for Free
The Origin Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ | Send File to Tech support
Username:
 Password:
Save Password
Forgot your Password? | Admin Options

 All Forums
 Origin Forum
 Origin Forum
 http://www.originlab.com/www/helponline/Origin/en/		  New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic

berts

France
4 Posts
Posted - 05/27/2011 :  11:50:05 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Dear All!

I'm trying to use the Geometric SD described here:
http://www.originlab.com/www/helponline/Origin/en/UserGuide/The_DescStats_1_Dialog_Box.html
2 questions:
1. Is the definition right? Wikipedia says that it has to be exp{std(ln x_i)}, not exp{std(log x_i)}
2. How can I plot such SD on the log-log plot to show the error bars equaly big for most of my points (if I use yEr+-, I have huge bars in the low-range and small ones in the high range)

Thanks in adavance!
Elena

berts

France
4 Posts
Posted - 05/27/2011 :  11:59:26 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Well, the answer to the second question I have just found:
Col(GeoMean)*Col(GeoSD)-Col(GeoMean)
But the first one remains...
Go to Top of Page
  Previous Topic Topic Next Topic Lock Topic Edit Topic Delete Topic New Topic Reply to Topic
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
The Origin Forum © 2020 Originlab Corporation Go To Top Of Page
Snitz Forums 2000