Can't query experiments about cytoflow

[kristjaneerik]

Could you list all the columns in the underlying dataframe, e.g. by doing

print(ex.data.columns)

There are two things going on here. The error message you are seeing is due to a bug.

                raise util.CytoflowError("Tried to sanitize column name {1} to "
                                         "{2} but it already existed in the "
                                         " DataFrame."
                                         .format(name, new_name))

should read

                raise util.CytoflowError("Tried to sanitize column name {0} to "
                                         "{1} but it already existed in the "
                                         " DataFrame."
                                         .format(name, new_name))

But this piece of code is triggered by another issue, which is that two columns seem to be "sanitizing" to the same name. E.g. if you have a column "DNA positive" and then try to add a filter with the name "DNA_positive", they are distinct, but end up being sanitized to the same thing.

[AlFontal]

Hi @kristjaneerik!

Thanks, you were right, I messed up the channel naming when instantiating the experiment and two different channels had the same name. After fixing that, I can query now without issues. However, I think that:

• We should fix the issue with the .format indexes that you specified, do you want to open a PR?
• Maybe there should be a check at experiment definition that makes sure no two channels share the same name (or resolve to the same name after 'sanization'?)

[bpteague]

• We should fix the issue with the .format indexes that you specified, do you want to open a PR?

Yep, that's a bug. I'll fix it.

• Maybe there should be a check at experiment definition that makes sure no two channels share the same name (or resolve to the same name after 'sanization'?)

Agreed. I'll add a test and a fix.

[bpteague]

Fixed in fa4f593