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Update 04-measures-functions.md

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Iñigo Medina 2018-04-13 12:04:50 +02:00 committed by GitHub
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docs/reference/04-measures-functions.md
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@ -63,7 +63,7 @@ value | the raw or normalized measure
Add a measure to an empty numeric column based on polygons in your table
```SQL
```sql
UPDATE tablename
SET local_male_population = OBS_GetUSCensusMeasure(the_geom, 'Male Population')
```
@ -94,7 +94,7 @@ value | the raw or normalized measure
Add a measure to an empty numeric column based on point locations in your table
```SQL
```sql
UPDATE tablename
SET median_home_value_sqft = OBS_GetMeasure(the_geom, 'us.zillow.AllHomes_MedianValuePerSqft')
```
@ -125,7 +125,7 @@ value | the raw or normalized measure
Add a measure to an empty column based on polygons in your table
```SQL
```sql
UPDATE tablename
SET household_count = OBS_GetMeasure(the_geom, 'us.census.acs.B11001001')
```
@ -159,7 +159,7 @@ value | the raw measure associated with `geom_ref`
Add a measure to an empty column based on county geoids in your table
```SQL
```sql
UPDATE tablename
SET household_count = OBS_GetMeasureById(geoid_column, 'us.census.acs.B11001001', 'us.census.tiger.county')
```
@ -191,7 +191,7 @@ value | a text based category found at the supplied point
Add the Category to an empty column text column based on point locations in your table
```SQL
```sql
UPDATE tablename
SET segmentation = OBS_GetCategory(the_geom, 'us.census.spielman_singleton_segments.X55')
```
@ -288,7 +288,7 @@ data, using a boundary relevant for the geometry provided and latest timespan.
Limit to only the most recent column most relevant to the extent & density of
input geometries in `tablename`.
```SQL
```sql
SELECT OBS_GetMeta(
ST_SetSRID(ST_Extent(the_geom), 4326),
'[{"numer_id": "us.census.acs.B01003001"}]',
@ -300,7 +300,7 @@ SELECT OBS_GetMeta(
Obtain metadata that can augment with one additional column of US population
data, using census tract boundaries.
```SQL
```sql
SELECT OBS_GetMeta(
ST_SetSRID(ST_Extent(the_geom), 4326),
'[{"numer_id": "us.census.acs.B01003001", "geom_id": "us.census.tiger.census_tract"}]',
@ -312,7 +312,7 @@ SELECT OBS_GetMeta(
Obtain metadata that can augment with two additional columns, one for total
population and one for male population.
```SQL
```sql
SELECT OBS_GetMeta(
ST_SetSRID(ST_Extent(the_geom), 4326),
'[{"numer_id": "us.census.acs.B01003001"}, {"numer_id": "us.census.acs.B01001002"}]',
@ -360,7 +360,7 @@ errors | A text array with all possible errors
Validate metadata with two additional columns of US census data; using a boundary relevant for the geometry provided and the latest timespan. Limited to the most recent column, and the most relevant, based on the extent and density of input geometries in `tablename`.
```SQL
```sql
SELECT OBS_MetadataValidation(
ST_SetSRID(ST_Extent(the_geom), 4326),
ST_GeometryType(the_geom),
@ -408,7 +408,7 @@ array.
Obtain population densities for every geometry in a table, keyed by cartodb_id:
```SQL
```sql
WITH meta AS (
SELECT OBS_GetMeta(
ST_SetSRID(ST_Extent(the_geom), 4326),
@ -423,7 +423,7 @@ FROM OBS_GetData((SELECT ARRAY_AGG((the_geom, cartodb_id)::geomval) FROM tablena
Update a table with a blank numeric column called `pop_density` with population
densities:
```SQL
```sql
WITH meta AS (
SELECT OBS_GetMeta(
ST_SetSRID(ST_Extent(the_geom), 4326),
@ -444,7 +444,7 @@ Update a table with two measurements at once, population density and household
density. The table should already have a Numeric column `pop_density` and
`household_density`.
```SQL
```sql
WITH meta AS (
SELECT OBS_GetMeta(
ST_SetSRID(ST_Extent(the_geom),4326),
@ -507,7 +507,7 @@ array.
Obtain population densities for every row of a table with FIPS code county IDs
(USA).
```SQL
```sql
WITH meta AS (
SELECT OBS_GetMeta(
ST_SetSRID(ST_Extent(the_geom), 4326),
@ -522,7 +522,7 @@ Update a table with population densities for every FIPS code county ID (USA).
This table has a blank column called `pop_density` and fips codes stored in a
column `fips`.
```SQL
```sql
WITH meta AS (
SELECT OBS_GetMeta(
ST_SetSRID(ST_Extent(the_geom), 4326),