Data from the same source appears differently when plotted in MatLab or LabView

[Mozglubov]

Ok, here is another attempt at attaching everything.  It is all zipped now, so should no longer be verboten in any manner...

The MatLab scripts should be fairly straightforward, but to not really have to do anything with them just use the PlotScript script.  It has the sampling rate (at least the sampling rate I am 99% sure we were using unless there is something going on in the inner workings between the Front Panel and the actual execution of the data acquisition where the sampling rate ceases to be accurate) already included, and will plot channel 37 (the mechanical switch data) in 20 second increments.

I did not include the LabView vi's, since I'm not really sure what sub-vi's they depend on and where on these computer systems to find all those said vi's.  If anyone thinks they would still be useful, however, I can try attaching them to another message.

[smercurio_fc]

The "LoadData" function in the "PlotScript" file is undefined. Probably a user function.

It would help to know what the format of the file is. Since you indicated that the LabVIEW code is saving the data can you at least post this part of it?

[TCPlomp]

Without any actual code (just the read part and any calculetions you do).
The data looks like some multiplexed item to me.
Could you give the code that has written this data as well?

Ton

[Mozglubov]

Crap, you're right, I knew I was forgetting something... it really isn't a complicated function, but it just makes things go smoothly.

I'm sorry, but the format of which file?  I have attached the LabView code, although, like I said, it has been handed down through several people so is a bit of a mess.

I had to attach the MatLab function as a .txt file since .m was apparently not a valid extension for attachments... you should be able to just change it back to .m and it should work.

[TCPlomp]

I get the same data as you do:

But why the difficult data-reading in Matlab?
If I am correct you can read easily 2D binarie data into Matlab with a simple Read function. A paramater B indicated that the file is Little Endian binary (opposed to 'b', big endian binay), you only have to skip the 8f5 header (just like I did).

Are you sure your .bin to .mat converter is OK? Your LabVIEWreduced1 picture shows strange steps in the data, it looks like it has mixed some interleaved with block data.

Ton

[Mozglubov]

Well, to be honest, I didn't really know what I was doing in terms of what the contents of the .bin file were.  I asked some of the previous people who had worked with the LabView as well as searching about on the internet for a solution.  I never did seem to manage to get  a .bin to .mat converter working, so I followed someone's advice and dumped it into a comma-deliminated file format since I knew MatLab could read that.  When I tried to just read the binary with MatLab, it kept telling me the data was either the wrong format or corrupt.  Do you know of a good .bin to .mat converter?  I was never able to find one.

[TCPlomp]

Here's the data + reading code:

[Mozglubov]

I was just wondering if you could attach the vi for the code reading... I am following along trying to recreate it, but there are a couple wires that I'm not quite sure where they are pointing.

[TCPlomp]

Here you go (8.5)

Ton

[Mozglubov]

Thanks!