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 Descending columns on a logarithmic scale
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Amdursky

2 Posts

Posted - 01/13/2016 :  04:34:56 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
Origin Ver.: OriginPro 2015
Operating System: Windows 7

I was making a column graph (with error bars), and wanted that the columns will start at y=1 (the location of the x-axis), and then some of the columns will go up (with the values of >1), and some of the columns will go down (with values <1, most of the values are 0<y<1). When the y-axis was on linear scale, I succeeded in doing it by going to the "Line and Ticks" of the bottom x-axis and set the Axis position at position 1, and make sure that in the "Grids" tab there is no tick at "Y=0". However, I want to show my results on a logarithmic scale, and when I've changed the y-axis to logarithmic scale, all of the columns started from the bottom of the graph, regardless to the position of the x-axis. All of the values are positive.
Can I make a column graph with a controllable location of the x-axis with a logarithmic y-scale?
Thanks!

Amdursky

2 Posts

Posted - 01/13/2016 :  11:31:53 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Here are couple of images to describe better my question.
This is the graph on a linear scale:

and this is what happens when I'm changing the y-scale to logarithmic:

Can I make the column with lower values of 1 to start from the Y=1 line toward the bottom of the graph
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snowli

USA
1385 Posts

Posted - 01/13/2016 :  11:55:04 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
Hello,

Sorry for the inconvenience.

This is a bug which we have fixed in latest Origin 2016 SR1. See corresponding row about ORG-14106.
https://originlab.jira.com/wiki/display/main/Origin+2016+SR1+Bug+Fixes

In Origin 2016, it's much easier to set baseline of column/bar plot.
You only need to go to Grids tab to set the Y= value. e.g. y=1.
https://originlab.jira.com/wiki/pages/viewpage.action?pageId=65503314


Thanks, Snow

Edited by - snowli on 01/13/2016 11:57:07 AM
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