Daniel Huppmann comments

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                                            Daniel Huppmann

`filter()` fails when using non-ascii characters like `\xa0`

For the issue reported by @GamzeUnlu95, we figured out bilaterally that this was caused by not-so-fresh (and incompatible) versions of pandas and xarray. For the `\xa0` issue, this was a...

Implement default values for the data-operation functions

Update: there is now a `fillna` option, but this not work with pint.Quantity instances.

df.aggregate_region() when inconsistent index (e.g. years)

I'm wondering what a reason could be that a variable is reported for a smaller set of years than the weights which are used to aggregate it...? I don't think...

Aggregation tests

Thanks @znicholls - though I didn't just remove all aggregation tests, most of them were just refactored (and ordered so that it's all tests for `[check_]aggregate()`, then `[check_]aggregate_region()`, then `check_internal_consistency()`,...

Aggregate variables with different units

Thanks @pjuergens for raising this issue! You are trying to do something that's going beyond the intent of the aggregation-function. But you actually found a nice workaround using standard pyam...

Adding a `IamSlice` feature

I like your idea about a boolean mask, but I would not how to implement it... On the second idea about allowing `df[df.slice()]`, that sounds great and easily doable...

Adding a `IamSlice` feature

Closed via #637

`as_pandas()` returns bigger-than-necessary dataframes

this has actually been fixed in `line_plot()` but the issue persists in `stack_plot()`, `bar_plot()` and `pie_plot()`...

Adding scenario counts to boxplots

Great suggestion, this could be a really useful feature. I did a quick search and this post seems to describe exactly what is needed https://www.python-graph-gallery.com/38-show-number-of-observation-on-boxplot Looks like a 10-minute-task to...

Parse data from datetime-args and list of values

fyi @jh-RLI @christian-rli @henhuy