Hello,
the file based voltage source searches the dataset file in the Qucs home directory. As in projects all files are normally structured in a directory hierarchy it would be very desirable to have the search being able to search relatively to the actual x.sch file location. Then giving the file name y.dat for the dataset file of a file based voltage source (or whatever file based source) would be quite easy.
At the moment I have to state the absolute path, which for me is a no go. (see attachment).
Hello,
I've just verified with Qucs 0.0.19 on Linux and the File based voltage source behaves as you expect to: if you select a file which resides in the project directory, only the filename is shown, without the full path.
Did you create a project to hold all the Qucs files? It should be a directory ending in "_prj" but I do not see such a directory name in the file path for the VFile component you are using.