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naetop
Japan
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 Posted - 11/10/2006 : 12:23:46 AM
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Origin Version (v7.5885):
Operating System:WinXP
Hi,
My worksheet is as follows.
A(X) B(Y) C(Y)
1. 1. 2.
2. 2. 4.
I would like to make 2 curves.
1st: x-axis=A(X), y-axis=B(Y)
2nd: x-axis=C(Y), y-axis=B(Y)
But I could not add 2nd curve after making 1st curve
in the Plot Setup.
This reason may be concerned with plot Designation
but I do not understand.
Could you tell me what is reason?
Best regards,
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larry_lan
China
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Posted - 11/10/2006 : 01:16:36 AM
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Hi:
In Origin, each worksheet column is tagged with a Plot Designation that tells Origin how to treat the data when plotting or performing analyses. Plot Designations are X, Y, Z, X Error (bar), etc. In your case, you should organize your data like:
A(x1) B(y1) C(x2) D(y2)
1...... 1...... 2...... 1
2...... 2...... 4...... 2
Just add a column D and copy column B to column D, then set column C as X column (right click the column and choose "Set As --> X"). And then highlight the entire worksheet and plot the curves.
Any more information about Plot Designation, please read the following section:
The Worksheet>Worksheet Columns (Data Sets)>Understanding Column Associations in the Worksheet
of Origin Help file
Larry
OriginLab Technical Services
Edited by - larry_lan on 11/10/2006 01:20:10 AM |
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greg
USA
1379 Posts |
Posted - 11/15/2006 : 12:56:03 PM
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The Plot Setup dialog is designed to plot data regardless of what the plot designation may be for a particular column.
The problem you are exoeriencing is a limitation. Specifically, you cannot plot a dataset more than once as a particular designation in a single graph layer. In your example, you tried to plot B as a Y column twice.
A solution that does not require a change in your worksheet is to use a two layer plot template such as Vertical Two Panel, Horizontal Two Panel or Double-Y.
For example, select Plot : Panel : Vertical Two Panel from the menu.
(Layer1 should be active in the bottom pane.)
Check B as your Y and A as your X and click Add.
Select Layer2 in the bottom pane.
Check B as your Y and C as your X and click Add.
Click OK.
You can re-arrange this graph to look like one layer by selecting :
Edit : Add & Arrange Layers
Choosing 1 row by 1 column
Accept default spacing
The Double-Y template does something similar with the added advantage that the X axes are linked.
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Add Graph