I just tried your code with acs 2.0 and choroplethr 3.5.1 under R-3.3.0
alpha and got a result rather than an error...
Are you using a different version of anything?
Best,
Uwe Ligges
On 28.03.2016 22:49, arilamst...@gmail.com wrote:
Unfortunately I am still getting the same error:
install.packages(c("choroplethr", "acs"))
library(acs)
api.key.install("f8b2a6df01479981aef39577b3c4466f5a4c8274")
detach("package:acs", unload=TRUE)
library(choroplethr)
get_state_demographics()
Error in (function (classes, fdef, mtable) :
unable to find an inherited method for function ‘geography’
for signature ‘"matrix"’
Someone suggested that I import the acs class in my NAMESPACE. But even
after adding:
importClassesFrom(acs,acs)
I get the same error.
On Sun, Mar 27, 2016 at 11:52 AM, Uwe Ligges
<lig...@statistik.tu-dortmund.de
<mailto:lig...@statistik.tu-dortmund.de>> wrote:
Has this been resolved now?
I cannot reproduce the problem as I get:
> library(choroplethr)
>
> ?get_state_demographics
starting httpd help server ... done
>
> get_state_demographics()
Error in (function (classes, fdef, mtable) :
unable to find an inherited method for function ‘geography’ for
signature ‘"logical"’
In addition: Warning message:
In acs::acs.fetch(geography = state_geo, table.number = "B03002", :
'key' required to access Census API site for download;
See http://www.census.gov/developers/ to request a key
and/or use 'key=' (or run 'api.key.install()') to avoid this error.
Best,
Uwe Ligges
On 25.03.2016 21 <tel:25.03.2016%2021>:55, arilamst...@gmail.com
<mailto:arilamst...@gmail.com> wrote:
Recently the functionality in the choroplethr
<https://cran.r-project.org/web/packages/choroplethr/index.html>
package
that depends on the acs
<https://cran.r-project.org/web/packages/acs/index.html> package has
stopped working. I've been able to narrow down the cause, but
cannot figure
out how to fix it. Any help would be appreciated. To reproduce
the error
you can type:
install.packages("choroplethr")
library(choroplethr)
?get_state_demographics
get_state_demographics()
Error in (function (classes, fdef, mtable) :
unable to find an inherited method for function ‘geography’ for
signature
"matrix"’
(Note: you will need to set a census API key for this example to
"work".
See here
<https://cran.r-project.org/web/packages/choroplethr/vignettes/e-mapping-us-census-data.html>
for instructions).
I believe that this error was introduced by version 2.0 of the
acs package,
which was just released. I suspect that choroplethr is either
not importing
something that it should be importing, or acs is not exporting
something
that it should be exporting. For example, the problem can be
fixed by
simply loading the acs package first:
library(acs)
get_state_demographics()
<valid result>
The acs package uses both S3 and S4, which I do not have much
experience
with. I have been reading Hadley's excellent chapter on Namespaces
<http://r-pkgs.had.co.nz/namespace.html>, and tweaked various import
directives in the choroplethr package (the actual code that
crashes is here
<https://github.com/arilamstein/choroplethr/blob/master/R/get_state_demograhpics.R#L42>).
But I am still not sure how to fix this problem.. Any help would be
appreciated.
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