| T O P I C R E V I E W |
| sm_astro |
Posted - 10/17/2007 : 12:32:26 PM
Origin Version (Select Help-->About Origin):
Operating System: Windows ME 2000
I've data in the form:
x y
0.1 0.22
0.2 0.34
0.3 0.56
0.3 0.66
0.4 0.78
0.42 0.4
0.5 0.5
0.53 0.55
0.32 0.45
0.45 0.78
I'd like to bin in y in x and see the correlation, if any, graphically. I'm able to convert datasheet into a matrix using 2-d binning by selecting y, but how can i plot the binned data. |
| 1 L A T E S T R E P L I E S (Newest First) |
| easwar |
Posted - 10/17/2007 : 4:56:59 PM
Hi,
Once you bin to worksheet, you can make an Image Plot from the Plot menu with the matrix active. This basically plots each cell as a pixel/raster graph so one can visually see if there is correlation.
You may want to try version 8, which is available for demo download now. This version has a Scatter Matrix plot that can draw confidence ellipse and report R^2 value for linear fit, for every pair of column in a worksheet. That does not bin the data, but it can perhaps convey information on correlation that you are looking for. Version 8 also has other correlation tools.
You can download demo from:
http://originlab.com/index.aspx?s=12&lm=62
Easwar
OriginLab
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