Improve deciles for ratio curves

[Damonamajor]

We were not getting a ratio value for the 1st decile once excluded sales were removed from the spreadsheet.

My initial assumption was that we had too few sales in the 1st decile grouping, but I don't think that's right. My next hunch is that it involves NA sales which calculate NA ratios. I'm still investigating this slightly.

Pretty sure it was in this line
median(desk_review_sale_ratio) which doesn't remove NA values.

However, this standardizes all the ratio calculations to remove the sales which res-val include in their exclusion list including the map, ratio stats, and the ratio curve.

I asked when the requestor wanted the file and they said by EOD tomorrow.

[wrridgeway]

Thank you for catching this issue @Damonamajor ! I've got some minor suggestions below for consistency, but make sure to test any of them after committing.

[Damonamajor]

@ccao-jardine updated outputs are here if you want to look at them for Bremen
O:\CCAODATA\recurring-data-requests\provisional-ratio-curves\output\2026

[ccao-jardine]

Hmm, can we get some extra QC of the "Ratio Deciles" and "All Parcels" sheets in the excel file?

In "All Parcels", sorted to Price Decile = 1, I'm seeing prices that don't seem appropriate for this bin (note I've added some formatting for readability):

In "Ratio Deciles" I'm seeing overlapping price ranges:

The png has what appear to be appropriate ranges, but I'm nervous that its bins disagree with the bins in the excel file:

[ccao-jardine]

My comment above looks resolved, thanks!