Histogram Generator

[jkurtw]

I recently had to crank through a lot of data and generate reports on it - specifically histograms. The attached code generates PNG files of all the data you throw at it. You can then use these PDFs in reports or throw them into a PDF. I will also attach my Apple Automator script that will take all the PNGs and put them in a PDF file.

All this code was developed specific to my use case, but feel free to tweak it as needed.

Here are some notes that might help you:

• Required format for input data is a tab delimited file with a unique histogram in each column (the column header will be put in the histogram as the title)
  • See example file attached 802.11ag 2442MHz 6Mbps.txt
• Data files should have the desired precision already set (if you want 1 decimal place, don't put more in your data set. The Histogrammer will match the bins to the number of decimals you have - it is a frequency chart really not a histogram. You can easily change this in the code if you want)
• Column headers marked with '*' (asterisk) in their title will be skipped
• Column headers can also contain the X-axis label, separated from the title with a comma. For example "My Data Set, dB" in the tab delimited file would generate a histogram with the title "My Data Set" and "dB" on the X axis.
• Code is currently set to pull in 100 rows
  • Create histogram.vi inside the code has the number of rows hardcoded to 100 - change it if you have a larger data set
• The VI can be pointed at a single data file or a top level folder containing more folders with data files... like this
  • My Data Set (folder)
    • Channel A (folder)
      • Test 1.txt (tab delimited data file)
      • Test 2.txt
    • Channel B (folder)
      • Test 1.txt
      • Test 2.txt
    • Channel C (folder)
      • Test 1.txt
      • Test 2.txt
• The data files name ("Test 1" from above) will be used as a subtitle on the histogram

[Rahul711]

Hi,

JKURT,

how to join  LabVIEW Real-Time Developers Group. and add a friend.