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Replace source of link to CCAO class dict in intro vignette #45

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Dec 6, 2024
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Replace source of link to CCAO class dict in intro vignette #45

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d54e4e0
Replace source of link to CCAO class dict
jeancochrane Dec 4, 2024
69a7691
Update Chicago data portal ward boundaries URL in mapping vignette
jeancochrane Dec 5, 2024
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2 changes: 1 addition & 1 deletion vignettes/introduction.Rmd
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Expand Up @@ -77,7 +77,7 @@ print(bill)
|-------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| **`year`** | Tax year of the bill. Note that bills are paid in arrears, so a 2021 bill is paid in 2022 | Must be >= 2006 |
| **`pin`** | Property Index Number of the property. This is the unique identifier of each parcel in Cook County | |
| **`class`** | The 3-digit Assessor minor class code. This identifies the property type/structure | See [class dictionary](https://github.com/ccao-data/ccao/blob/master/data-raw/class_dict.csv) |
| **`class`** | The 3-digit Assessor minor class code. This identifies the property type/structure | See [class dictionary](https://github.com/ccao-data/data-architecture/blob/master/dbt/seeds/ccao/ccao.class_dict.csv) |
| **`tax_code`** | The 5-digit tax code. Each tax code identifies the unique combination of taxing districts that a PIN is within. Note that the first 2 digits of `tax_code` are the Assessor township code | |
| **`av`** | Assessed value of the property. By default, this is the finalized AV *after all appeals have been completed*. See [optional arguments](#optional-arguments) below for more details | Must be >= 0 |
| **`eav`** | The `av` multiplied by the state equalization factor | Must be >= 0 |
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7 changes: 3 additions & 4 deletions vignettes/mapping.Rmd
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Expand Up @@ -218,10 +218,9 @@ Sometimes you may need to create a map of a non-taxing area like a ward, judicia
To demonstrate such a case, we can use Chicago Ward 48. The first thing we need to do is find a boundary of Ward 48. Fortunately, the ward boundaries are available on the [Chicago Data Portal](https://data.cityofchicago.org/Facilities-Geographic-Boundaries/Boundaries-Wards-2015-2023-/sp34-6z76).

```{r, message=FALSE, warning=FALSE, results='hide'}
ward_bound <- st_read(paste0(
"https://data.cityofchicago.org/api/geospatial/",
"sp34-6z76?method=export&format=GeoJSON"
)) %>%
ward_bound <- st_read(
"https://data.cityofchicago.org/resource/k9yb-bpqx.geojson"
) %>%
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@jeancochrane jeancochrane Dec 5, 2024 •
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Unrelated change I noticed while running tests on CI: It seems like the old URL no longer works. You can confirm this by visiting the non-export version of the URL, which returns no data: https://data.cityofchicago.org/api/geospatial/sp34-6z76

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praise: Nice catch!

filter(ward == "48")
```

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