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Telling Igor to skip an empty data file

Sun, 05/05/2019 - 01:27 pm

I am reading into Igor a directory of delimited text files. They are the result of a web scrape and may be empty, i.e. a 0 KB file. My code gets a list of all of these files and then (in a for-loop) loads the data in each using LoadWave. I get a "no data was found in file" error if there's an empty file in the directory. I searched the help and couldn't figure out how to get Igor to skip empty files. Any tips appreciated!

hrodstein

You can use GetRTError to clear the error from LoadWave.

A cleaner approach is to use GetFileFolderInfo to test the number of bytes in the file.

May 5, 2019 at 08:44 pm - Permalink

sjr51

Thanks Howard. For anyone reading this with the same issue:

I added a line to my for-loop to do GetFileFolderInfo (this creates a variable called V_logEOF, which has the number of bytes). I then used an if statement to test whether V_logEOF > 0 before loading the file.

May 6, 2019 at 12:03 pm - Permalink