Scalars stored in sequences in single timestep optimisation

[joroeder]

If an optimisation with one timestep is performed, the outputlib stores the scalars of the results in the dict of the sequences.

So, I guess in outputlib.processing.results(om), the following condition must be somehow adapted:

https://github.com/oemof/oemof/blob/8640ea712da8db4227979d06ed12aedfab9c7c66/oemof/outputlib/processing.py#L131

If there is a scalar, at 2 and more timesteps, there will be a NaN at the second timestep at all scalars without the need of knowing the attributes name. This must be replaced. Any ideas?

[uvchik]

I am not sure if this is still valid. I tried to reproduce it but maybe I did not got the idea.

@joroeder Could you check and add an example or better a failing test?

[p-snft]

I will move this to v0.5.1. If it's not triaged when that version is about to be released, I'd consider this bug not existing.