Y-error on scatter plot

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Topic URL: https://my.originlab.com/forum/topic.asp?TOPIC_ID=18793
Printed on: 11/25/2024

Topic:

Topic author: mathiasigulu
Subject: Y-error on scatter plot
Posted on: 08/30/2013 6:15:35 PM
Message:

Hi, any body who can help?
Am using OriginLab 8.5, I would like to draw a scatter plot with y-error values, the problem is i have two different values of y-error and I would like the program to show both values. In the program I can only have one column for x, y and y-error. Anybody with any idea on how I can have both two y-error values displayed under one line?

Replies:

Reply author: Shirley_GZ
Replied on: 09/02/2013 01:41:24 AM
Message:

Hi,

I suppose there are four columns in current worksheet "Book1", and the 3rd and 4th are Y errors.

From GUI, right-click on col(3) and col(4) individually and select Set as: Y Error from context menu to set them as Y Error.

Then click on the Scatter button to plot them as a Scatter plot with two Y error bars.

By Script:

plotxy (1,2:4); //Plot col(2) and col(4) as three curves
set Book1_C -o Book1_B; //Set 3rd plot to Y error of 2nd plot
set Book1_D -o Book1_B; //Set 4th plot to Y error of 2nd plot

worksheet -t 3 3; //Set col(3) as Y error
worksheet -t 4 3; //Set col(4) as Y error
worksheet -s 1 0 4 0;  //Select col(1)~col(4)
run.section(plot,Scatter); //Run plot.ogs

Reply author: mathiasigulu
Replied on: 09/02/2013 03:11:50 AM
Message:

Hello Shirley
Thanks a lot, it works

Reply author: mathiasigulu
Replied on: 09/02/2013 05:01:25 AM
Message:

Hi Shirley and anybody interested
Your suggestion works, but i still dont have the final graph i wanted, box y-error are plotted on the same point as i wanted, but I would have like to have only each error bar line to be displayed on only one side of the mid point. Is this possible? To make it bit clear, the error line wont the same from both end. Please see attached file. See attached file for my idea

Reply author: Shirley_GZ
Replied on: 09/02/2013 10:37:56 PM
Message:

Hi,

You can select different direction for these two error bars in the Plot Details dialog(double-click on the graph to open this dialog), see the below screenshot:



Originlab Technical Service Team

Reply author: mathiasigulu
Replied on: 09/03/2013 01:53:18 AM
Message:

thanks a lot

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