Loads an IQRaedataER object from CSV and ATR file
An IQRaedataER dataset that previously has been generated and exported with export_IQRaedataER can be loaded with this function. The function will look for the "filename".atr file and if it exists it will import the needed attributes. If it does not exist an error will be shown and the user is told to consider the IQRaedataER function. ":::" in character strings is replaced by " ".
Filename of CSV file for an IQRaedataER object. The file "filename".atr needs to exist as well.
An IQRaedataER object