spData | Datasets for spatial analysis | Map library
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Datasets for spatial analysis.
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install.packages("spDataLarge", repos = "https://nowosad.github.io/drat/", type = "source")
Community Discussions
Trending Discussions on spData
QUESTION
I'm trying to install the package brms
in R so that I can rename the parameters returned from the function stan
(from the rstan
package). When I try install.package("brms", dependencies=TRUE)
, I get the (partial) output pasted at the end of this post (it's too long to paste the whole thing). At the end of the output, you can see that I get a series of "dependency errors", which makes sense because the very first error is not a dependency error, but rather a compilation error that says:
ANSWER
Answered 2022-Apr-16 at 17:24Start with
QUESTION
is there a way I can pass stored procedure data in DatabaseSource.
Any other way I can load data from stored procedures in ML.net?
...ANSWER
Answered 2022-Mar-09 at 19:30You should be able to as long as you can express it in your query.
https://docs.microsoft.com/dotnet/machine-learning/how-to-guides/load-data-ml-net
One other way to do it would be to execute a query with your stored procedure and map the results to an IEnumerable
. Then, load the IEnumerable into an IDataView
.
QUESTION
I am working with the world
and worldbank_df
datasets in the spData
package in R
, and am needing to subset my data and graph my results. I am selecting the columns "continents" and "urban_pop," dropping all NA values, grouping by continent, and summarizing the mean urban population of all continents. However, when I go to graph the results using the geom_sf
call, I am getting an error:
Error in FUN(X[[i]], ...) : object 'mean_urban_pop' not found
I need to graph this data in a world map, but it's not working for me because the geom
coordinates are not being transferred over to my new dataset.
How can I get these results graphed?
Note: The below coordinate system projected is the one that I must use.
Here is my code:
...ANSWER
Answered 2022-Feb-22 at 22:28It looks like the issue is with the use of summarise()
instead of mutate()
; when you use summarise()
you only keep the variable of interest, e.g.
QUESTION
Is it possible to include more than one tm_compass()
on a map created by tmap
?
I know it's probably unlikely that you'd need to, but say you wanted to show off the different compass types. Using nz
from the spData
package I tried adding each new compass as an additional layer, but it seems only the first one is included on the map.
ANSWER
Answered 2022-Jan-31 at 17:45Interesting question. As you point out, in normal use it is unlikely that one would need to display multiple compasses for the same map and that is probably why the default behavior of the tmap
library does not handle this case.
That said, it is still possible to add all five tmap
compasses to the same map using some workarounds! So, please find below the general "strategy":
Building 5 maps, each with one of the
tmap
compasses. Then convert these maps into 'grob' objects using thetmap::tmap_grob()
function to extract the compasses with the help of thegetGrob()
function from thebase R
librarygrid
.Visualizing the compasses (without and with labels) using the
cowplot
libraryBuilding the final map with the five compasses using the
cowplot
library
NB: when running the reprex just below, don't worry about the rendering of the different plots that will be displayed in your plotting device
(as the rendering depends on the aspect ratio of the device); what matters is the rendering of the maps saved in the .png
files.
STEP 1 - EXTRACT EACH COMPASS TYPE FROM FIVE 'DUMMY' MAPS AS 'GROB' OBJECTS
QUESTION
I want to load in the map data, which is found in spData
.
- I tried to install the package:
ANSWER
Answered 2022-Jan-30 at 19:15This is probably because you have a version or raster
that is ahead of the version of terra
that it requires, caused by a temporary glitch at CRAN with the binary versions for Windows. The easiest way around this problem is to install the development version of terra
, and then reinstall raster
:
QUESTION
I am trying to trim the white space from a ggplot map plot that was created using geom_sf()
. I have found multiple resources discussing removing white space when saving a plot using ggsave()
. I am hoping to remove the white space without having to save it, though.
Removing white space using ggsave()
- R ggplot, remove white margins in ggsave/ggplot
Please find below a reproducible example:
...ANSWER
Answered 2022-Jan-12 at 19:14Can share more about what you're trying to accomplish? You say you want to remove whitespace, but you also want the plot to be at the bottom left of whitespace. What is your ultimate goal here? Let me know if I missed something.
I believe the whitespace is added outside of your ggplot based on your graphic device and ggplot margins. You can control the ggplot margins in theme()
(like in this question/answer). You could remove the whitespace by defining your graphic device to the same dimensions as your ggplot object.
If you wanted to place the plot at the bottom left of whitespace, you could define your graphic device space and then plot within that area with one of your favorite plot layout tools. For example:
QUESTION
I am trying to use the exact_extract()
function of the exactextractr::
package to give me the percent area of a polygon covered by each class of a classified raster. However, I am getting a cryptic error message "Error in .num_expected_args(fun) : 'list' object cannot be coerced to type 'double'." The error seems to be saying that all of the coverage fraction values are stored in a list, and the summarization routine is trying to convert it to a double-precision datatype. The only thing I can think of is that perhaps this is a bug in the exact_extract()
function. Any guidance would be much appreciated. Below is my reproducible example to illustrate the issue:
ANSWER
Answered 2022-Jan-07 at 23:52It turns out that I am just an idiot. exact_extract()
expects the functions to be quoted because they are run internally and not taken from the external functions. This solved the issue entirely:
QUESTION
I would like to change the color of a shared color to a different color, let's say red. So far, I am plotting the German federal state Bavaria and touching Austrian states. I get the data from https://gadm.org/download_country.html -
Germany Level 2 - https://biogeo.ucdavis.edu/data/gadm3.6/Rsf/gadm36_DEU_2_sf.rds
Germany Level 1 - https://biogeo.ucdavis.edu/data/gadm3.6/Rsf/gadm36_DEU_1_sf.rds
Austria Level 2 - https://biogeo.ucdavis.edu/data/gadm3.6/Rsf/gadm36_AUT_2_sf.rds
Austria Level 1 - https://biogeo.ucdavis.edu/data/gadm3.6/Rsf/gadm36_AUT_1_sf.rds
...ANSWER
Answered 2021-Dec-14 at 13:46Drawing a shared border is kind of tricky in context of {sf}
> 1.0, as it uses the s2 dependency for spherical operations, and the s2 library introduced a new concept of semi-closed polygons (which was not there in the GEOS years).
See https://r-spatial.github.io/s2/reference/s2_options.html#model for more information.
Anyhow, consider this piece of code, built on {giscoR}
package to access EU NUTS regions, and sf::st_intersection()
to find the shared border. Note the use of model = "closed"
(i.e. all polygons contain their entire boundaries) which may not be immediately obvious, and is necessary for the code to work as intended.
QUESTION
Using the 'baltimore' housing data from SpData, I want to model the presence of a patio as the response variable, with house price as the explanatory variable. I also want to include weights in my model by housing area.
My code:
...ANSWER
Answered 2021-Dec-06 at 14:37If you make the weights sum to 1, the model converges.
QUESTION
I've run into an issue where R INLA isn't computing the fitted marginal values. I first had it with my own dataset, and have been able to reproduce it following an example from this book. I suspect there must be some configuration I need to change, or maybe INLA isn't working well with something under the hood? Anyways here is the code:
...ANSWER
Answered 2021-Nov-21 at 00:16The developers intentionally disabled computing the marginals to make the model faster.
To enable it, you can add these to the inla
arguments:
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