Dear All,
I was a little confused.
Attached are the extracts from 2001 / 2011 shapefiles as snippet.
I think censuscode in 2011 shapefile = Census 2011 code for a District.
I further think DT_CEN_CD in 2011 OR 2011 shapefiles = Census 2001
code for a District.
I would like to confirm this.
Best,
Ashim
----8<-----snippet---->8-----
> st_read("Census_2011/2011_Dist.shp") %>% filter(DISTRICT=="Ahmadnagar")
Reading layer `2011_Dist' from data source
`/home/ashim/Documents/my-workspace/space-to-verify-state-census-codes-from-districts-shapefile/maps/Districts/Census_2011/2011_Dist.shp'
using driver `ESRI Shapefile'
Simple feature collection with 641 features and 5 fields
Geometry type: MULTIPOLYGON
Dimension: XY
Bounding box: xmin: 68.18625 ymin: 6.755953 xmax: 97.41529 ymax: 37.07827
CRS: 4326
Simple feature collection with 1 feature and 5 fields
Geometry type: MULTIPOLYGON
Dimension: XY
Bounding box: xmin: 73.62021 ymin: 18.33075 xmax: 75.58884 ymax: 19.98771
CRS: 4326
DISTRICT ST_NM ST_CEN_CD DT_CEN_CD censuscode
1 Ahmadnagar Maharashtra 27 26 522
geometry
1 MULTIPOLYGON (((74.67333 19...
> st_read("Census_2001/2001_Dist.shp") %>% filter(DISTRICT=="Ahmadnagar")
Reading layer `2001_Dist' from data source
`/home/ashim/Documents/my-workspace/space-to-verify-state-census-codes-from-districts-shapefile/maps/Districts/Census_2001/2001_Dist.shp'
using driver `ESRI Shapefile'
Simple feature collection with 594 features and 4 fields
Geometry type: MULTIPOLYGON
Dimension: XY
Bounding box: xmin: 68.18625 ymin: 6.755953 xmax: 97.41529 ymax: 37.07827
CRS: 4326
Simple feature collection with 1 feature and 4 fields
Geometry type: MULTIPOLYGON
Dimension: XY
Bounding box: xmin: 73.62021 ymin: 18.33075 xmax: 75.58884 ymax: 19.98771
CRS: 4326
ST_NM ST_CEN_CD DT_CEN_CD DISTRICT geometry
1 Maharashtra 27 26 Ahmadnagar MULTIPOLYGON (((74.67333 19...
>
On Wed, Dec 8, 2021 at 11:18 AM Ashim Kapoor <[email protected]> wrote:
>
> Deall All,
>
> I am working with the Districts shapefile using R.
>
> The file is located here:
>
> https://github.com/datameet/maps/tree/master/Districts
>
> Here are some records from this shapefile:
>
> > districts.map.with.crs %>% head
> Simple feature collection with 6 features and 5 fields
> Geometry type: MULTIPOLYGON
> Dimension: XY
> Bounding box: xmin: 71.60734 ymin: 18.33075 xmax: 93.20723 ymax: 27.40883
> CRS: EPSG:4326
> district st_nm st_cen_cd dt_cen_cd censuscode
> 1 Adilabad Andhra Pradesh 28 1 532
> 2 Agra Uttar Pradesh 9 15 146
> 3 Ahmadabad Gujarat 24 7 474
> 4 Ahmadnagar Maharashtra 27 26 522
> 5 Aizawl Mizoram 15 3 283
> 6 Ajmer Rajasthan 8 21 119
> SHAPE
> 1 MULTIPOLYGON (((78.84972 19...
> 2 MULTIPOLYGON (((78.19803 27...
> 3 MULTIPOLYGON (((72.03456 23...
> 4 MULTIPOLYGON (((74.67333 19...
> 5 MULTIPOLYGON (((92.98749 24...
> 6 MULTIPOLYGON (((74.89253 26...
> >
>
> I have a question:
>
> In the Districts shapefile:
>
> st_cen_cd is the 2011 census code for States.
> dt_cen_cd is the 2011 census code for Districts.
> censuscode is the 2001 census code for Districts.
>
> Is the above correct? Especially the censuscode. Is it the 2001 census
> code for a District? Is this mentioned somewhere ?
>
> Many thanks,
> Ashim
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