Excellent suggestions Professors! I really appreciated it. This is what I
am using:
library(data.table)
> library(rgdal)
> library(colourschemes)
> library(RColorBrewer)
> library(maptools)
> library(maps)
> library(ggmap)
> library(classInt)
max_change is my csv file while shapes is my spatial
Dear Anthony,
Thanks again for your reply. The following worked for merge:
merged_data <- merge(shapes_fips,max_change,by="FIPS",all.x=T, all.y=F)
However, I think I am doing something wrong - as I have 3109 FIPS code in
my original data but when I merge with the shapes
file SpatialPolygonsDat
Corey Sparks utsa.edu> writes:
>
> Joining data the way you're doing it is dangerous, Roger Bivand and others
> describes a standard way to do this process here:
>
http://r-sig-geo.2731867.n2.nabble.com/Merging-shapefiles-and-csv-td7586839.html
Quite right - the chunks Corey is referring to ar
Joining data the way you're doing it is dangerous, Roger Bivand and others
describes a standard way to do this process here:
http://r-sig-geo.2731867.n2.nabble.com/Merging-shapefiles-and-csv-td7586839.html
And I do an example using US Census data here, using merge():
http://spatialdemography.org/w
so check the unique number of fips codes in the objects before and after
> merged_data <- merge(shapes_fips,max_change,by="FIPS",all.X=T, all.y=T)
also note that all.X should be all.x and you might want to use FALSE for
one or both of those
On Tue, May 5, 2015 at 11:40 AM, Shouro Dasgupta wro
Hello,
Thank you for your reply. My original data has 3109 FIPS codes. Is there a
way to merge only this data into the shapefiles? I hope I am clear.
Thank you also for the link, I am trying to do something like this:
https://gist.github.com/reubano/1281134.
Thanks again!
Sincerely,
Shouro
On
hi, after running each individual line of code above, check that the object
still has the expected number of records and unique county fips codes. it
looks like length( shapes$GEOID ) == 3233 but nrow( merged_data ) == 3109.
the way for you to debug this is for you to go through line by line after
I am trying to plot data by FIPS code using county shapes files.
library(data.table)
> library(rgdal)
> library(colourschemes)
> library(RColorBrewer)
> library(maptools)
> library(maps)
> library(ggmap)
I have data by FIPS code which looks like this:
>
>
> dput(head(max_change))
> structure(lis
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