To plot the histogram from arrays

[aneps]

I have a Labview program which runs 'N' times. For each run it gives an array "Time". This is running inside a while loop and can be stopped mannualy when I finish the experiment. I want to plot the histogram of "Time" while running. I tried to connect the "Time" to the 'x' input of the general histogram in the Labview, but it was showing error. The error says the "source is an array of some elements and sink is double". How can I fix it? Or please tell me how can I plot the histogram it the data is in the form of arrays. 

[altenbach]

Please attach your code (make sure it contains some typical default data).

[aneps]

The files are attacted here... the first one "RAE.vi" is my original program. It has some drives which may not be shown when open in any other computer because these are the drives of specific cards I use (CAEN cards). In this, you can see a "Time" array. This is the array which I want to input to a histrogram and display while running.

I have attached another file "Read". The "Read" may be replaced with the missing drive. This creates random data, which can imitate the drive.

[aneps]

I have attached the files in the reply... Thank you...

[GerdW]

Hi aneps,

did you ever had a look at the Mathematics->Probability function palette? There are ready-to-use functions which provide histograms:

[altenbach]

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@aneps wrote:

The files are attacted here... the first one "RAE.vi" is my original program. It has some drives which may not be shown when open in any other computer because these are the drives of specific cards I use (CAEN cards). In this, you can see a "Time" array. This is the array which I want to input to a histrogram and display while running.

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What is the typical range of times in the array? If it is just 0..10 as in your example, all you need a very simple code. No histogram subVI needed.

[suchand]

Hi

I have a question regarding obtianing histogram.

I have X-Y data which is repeated for say 200 times. So for each X value there are 200 Y values. I would like to plot histogram of Y values for a particular X. It would be great if some of you could help.

Thanks

Suchand

[ericthemantis]

Hi Suchand,

We have documentation on the National Instruments website that can help you with creating your histogram. Here are links to some of those resources-

Histogram VI Help Page -  http://zone.ni.com/reference/en-XX/help/371361H-01/gmath/histogram_discrete/

Using the Create Histogram Express VI - http://digital.ni.com/public.nsf/allkb/248CD14CD6C53D7986256D190058FD32

There are also some examples in LabVIEW that you could explore. You can reach the Statistics Examples by opening LabVIEW, opening the help tab, and selecting “Find Examples…”. Then, with “Task” selected under the “Browse according to:”, open the folders Analysis, Signal Processing and Mathematics>>Probability and Statistics”.

These should help you getting started with creating histograms in LabVIEW.

Regards,

Eric H.

[suchand]

Dear Erich

Thanks. I have already made it by finding out the index of array elements and creating histogram for each element.

suchand