Reading text files sequentially

[jnaumann]

Hi Everyone,

I have a number of text files with sampled data which were taken at  set intervals. I have written a small, simple Vi to calculate the RMS from these files individually. Ideally what I would like to be able to do is plot how the RMS changes over time, in other words run the VI for each file and plot on a graph. Does anyone have any ideas if/how this may be done.

Thanks in advance

Jack

[MikeS81]

Hi Jack,

if you already have the code to do it for one file, then you can simply expand it with a for loop. Connect an array with all your files to it and plot the result to a chart or graph.

Mike

[jnaumann]

Thanks for idea of creating a loop and adding to an array. Is there any way of the programming the VI to automatically process each data file in sequence since I have too many files to open manually. Each file is time stamped if that is of any help.

Thanks once again.

Jack

[MikeS81 · Accepted solution]

Hi Jack,

you can get an array of all your files if you use the "List Folder" function.

See the attached image as an idea.

Hope it helps.

Mike

[jnaumann]

Thanks Mike - Thats perfect.