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Bug in Histogram ?

 
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GWilliam



Joined: 18 Nov 2009
Posts: 60

PostPosted: Fri Jun 15, 2012 4:06 am    Post subject: Bug in Histogram ? Reply with quote

Hi David,

I downloaded the last beta yesterday and today I am creating an plot with an Histogram. Then, I would like to fit the histogram with a Gausian fit. To do that I first "copy histogram information as column" and paste it as new column.

The "Location" and "Value" column are then created but they are empty.
What is odd is that I ams still able made a (x,y) plot, or even fits, the "empty" content of this two column.

So it seems that the valuse are their and it can found it but they are not diplayed into the column.

Regard,
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GWilliam



Joined: 18 Nov 2009
Posts: 60

PostPosted: Fri Jun 15, 2012 4:21 am    Post subject: Reply with quote

Additional information :

If I save the file, close it and load it, I can see the value in the "Location" and "Value" column.
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David
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Joined: 25 Nov 2006
Posts: 1542
Location: Chapel Hill, NC

PostPosted: Fri Jun 15, 2012 9:38 am    Post subject: Reply with quote

Can't replicate it. Does this still happen, i.e. if you quit DataGraph and start it again does it still happen? If it still happens let me know (through e-mail) the steps you took. If it doesn't happen, can you open the Console application, filter based on DataGraph and tell me if there is an error message? A display issue can also be triggered by a confused state caused by some other issue. I try to catch all exceptions so that I can bring up a report sheet, but it is possible that there were some that I didn't catch and the system caught.

David
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David
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Joined: 25 Nov 2006
Posts: 1542
Location: Chapel Hill, NC

PostPosted: Fri Jun 15, 2012 12:27 pm    Post subject: Reply with quote

I added a different method to do this. There is now an option to append the histogram information as columns. This creates two "From Command" columns that are connected to the histogram command. Before that column could only extract values from the Fit command, but now I added a method to extract the "Location" and "Value" from the histogram command.

David
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David
Site Admin


Joined: 25 Nov 2006
Posts: 1542
Location: Chapel Hill, NC

PostPosted: Fri Jun 15, 2012 12:33 pm    Post subject: Reply with quote

And actually, the "Plot Action" command just got a new action - Bin. If you create the x locations you can use this column to compute the histogram. This way you don't have to construct a Histogram drawing command.

David
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