Write to spreadsheet only if filename is different
Dear all,
I am trying to write some codes but to no avail. Basically, i have a filename coming in at every time interval (say 2 sec). I have build a small array as an example.
The filenames in the array are repetitive and i do not want to write the data to the spreadsheet if the filename is the same.
Bascially, i need to write the header and array only for 1st c:\1.txt file and subequent c:\1.txt data (3 more) i only want to write the array only (no header) and append it to spreadsheet.
That is to say for c:\1.txt file, it will consist of 1 header and 4 sets of array.
Then the process repeats again till a newfilename (c:\2.txt) is encountered.
c:\2.txt will also consist of 1 header and 4 sets of data.
Can anyone help out on this?
Solved!
Go to Solution.
Attachments:
snip.png 9 KB
Untitled 2.vi 11 KB
The shift register will only work if the last filename matches. If you want to make sure it was not used before, you need to compare with all previous filenames that were used.
See code snippet below:
Message Edited by Ray.R on 04-15-2010 08:27 AM
Attachments:
writeSprdShtCdtnl.png 34 KB
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Write to spreadsheet file.vi is storing data in one row only.
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I am using build array function to put together a number of strings and build an array of strings. The build array is in a while loop. A new line is added to the array every loop. I am using write to spread sheet function to save the spreadsheet to a file with xls extension. For some reason, a carriage return is inserted within the array. The array has 9 columns and a carriage return is put after the fourth column. I have not added this carriage return. Does anyone know why write to spreadsheet might automatically add a carriage return and how to remove it?
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Go to Solution.Hi,
I took your posted VI and compiled it to an exe. I do not see the carriage return problem you are describing?
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You're asking the very same question that I've been wondering about because I don't have the time info. I've found an example that have both info, temperature and time in two colums in one file..it uses two Index Array for time and temp, use the bundle feature, display the plot in an XY graph. So, that was an easy one, but apparently my case is different.
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Trying to write to spreadsheet...
I am trying to use a Tektronix TDS 420A oscillscope with LabVIEW to write
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wiring error. Any ideas or help would be grealty appreciated.Reverse engineer the process of creating graph and the error will be
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>
> I am trying to use a Tektronix TDS 420A
oscillscope with LabVIEW to write
> to a spreadsheet file that will be opened using Excel. I have tried wire
> the graph output to the Write to Spreadsheet.vi, but it keeps giving me a
> wiring error. Any ideas or help would be grealty appreciated.
>
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