Empty line in dataframe

[tkoskela]

My LEXCI benchmarks produce an odd empty line in my data frame

The raw perflog only has 8 lines with %tasks=1 so I'm not sure where this is coming from. I also get it in the csv export. Not a blocker since I filter it away anyways, but maybe worth having a look at.

[pineapple-cat]

Hmm... Is there any more information you can provide to help us replicate this issue? Assuming you're not transforming the data in some way, maybe this is caused by a newer version of something or other?

I just tried to process your preflog on the current version of the main branch and both my dataframe and csv export look fine. Here's what I get after adding num_tasks, median_value, and median_unit to extra columns and sorting the dataframe by num_tasks:

[tkoskela]

I've got
Streamlit, version 1.38.0
Python 3.12.3
pandas Version: 2.2.2

This config definitely reproduces it on my side

{
"title":"Test"
"x_axis":{
"value":"num_tasks"
"units":{
"custom":NULL
}
"sort":"ascending"
}
"y_axis":{
"value":"median_value"
"units":{
"column":"mean_unit"
}
"scaling":{
"custom":NULL
}
}
"filters":{
"and":[]
"or":[]
}
"series":[]
"column_types":{
"num_tasks":"int"
"median_value":"float"
"mean_unit":"str"
}
"extra_columns_to_csv":[]
}

[pineapple-cat]

It must be version sorcery then; the config above doesn't reproduce your empty dataframe line for me with Streamlit v1.30.0, Python v3.8.10, and pandas v1.5.3 (though no graph is generated due to a row / unique x-axis value mismatch). We'll have to look for the culprit later.

[ilectra]

I get some different wacky behaviour with Streamlit 1.38.0, which disappears with version 1.30.0 : when I import a config in the GUI, the config on the right is correctly updated, but the axis options on the left are not, therefore the plotting fails. This is weird, because the rest of the fields (filters and series) are correctly filled, and the dataframe columns corresponding to the axis are there.
I will fix the Streamlit version for now, but we need to keep this in mind....