Erro !res[[1]] : invalid argument type: shapefile using “sp” e “rgdal”

General
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1

I'm trying to save a shapefile format with detection rates using the "sp" and "rgdal" packages, but the following error occurs:

Erro !res[[1]] : invalid argument type

The plot was created, but the shapefile was not saved

I did updates of the packages, but the error remain

Reproductive example

library(rgdal)
library(sp)
library(camtrapR)

Long<-c(-53.59390711, -53.58148303)
Lat<-c(-4.633924739, -4.6340598)
df1<-data.frame(Long,Lat)
df1$Station<-NA
df1[df1$Long=="-53.59390711",]$Station<-"w"
df1[df1$Long=="-53.58148303",]$Station<-"z"

Station<-c("w","w","w","w","w","w","w","w","w","w","z","z","z","z","z","z","z","z","z","z")
Species<-c("a","a","a","b","b","b","c","c","c","c","a","b","b","b","b","b","c","c","c","c")
df2<-data.frame(Station, Species)

#no plot

detectionMaps(CTtable=df1,recordTable=df2,Xcol="Long",Ycol="Lat",stationCol="Station",speciesCol="Species",speciesToShow="a",richnessPlot=FALSE,speciesPlots=FALSE,
writeShapefile=TRUE,shapefileDirectory=tempdir(),shapefileName="sp_a", shapefileProjection="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_def")

#The shapefile should be created in this directory: C:\Users\...\AppData\Local\Temp\

#with plot

detectionMaps(CTtable=df1,recordTable=df2,Xcol="Long",Ycol="Lat",stationCol="Station",speciesCol="Species",speciesToShow="a",richnessPlot=T,speciesPlots=T,
writeShapefile=TRUE,shapefileDirectory=tempdir(),shapefileName="sp_a", shapefileProjection="+proj=longlat +ellps=WGS84 +datum=WGS84+no_def")
2

Hi @Milton,
I just ran your code and it worked fine on my Windows 10 machine with R-4.0.2

Maybe the arguments to detectionMaps are being truncated on the right-hand side of the
input screen; try indenting them on separate lines like this:

detectionMaps(CTtable=df1,
              recordTable=df2,
              Xcol="Long",
              Ycol="Lat",
              stationCol="Station",
              speciesCol="Species",
              speciesToShow="a",
              richnessPlot=FALSE,
              speciesPlots=FALSE,
              writeShapefile=TRUE,
              shapefileDirectory=tempdir(),
              shapefileName="sp_a", 
              shapefileProjection="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_def")

The output shape files were written to tempdir() which on my machine was

tempdir()
# [1] "C:\\Users\\david\\AppData\\Local\\Temp\\RtmpiESLrZ"

Your subdirectory name will be different but with this pattern: Rtmpxxxxxx

Edit: Thanks for providing such an excellent Reproducible Example!
HTH

3

Hi @DavoWW,

Thanks a lot for your help.
But, the error remain, I don't know...it seems that the sp package was not working well in my Rstudio, when running library (sp) it is look like the package wasn't loaded...

Best

4

Also, check that all your packages are updated to the latest versions in case the arguments have changed.

5

I tried the updates the "sp", but the R showed errors

"package ‘sp’ successfully unpacked and MD5 sums checked
Error in unpackPkgZip(foundpkgs[okp, 2L], foundpkgs[okp, 1L], lib, libs_only, :
ERROR: failed to lock directory ‘C:\Users\Miltinho\Documents\R\win-library\3.6’ for modifying
Try removing ‘C:\Users\Miltinho\Documents\R\win-library\3.6/00LOCK’"

6

@DavoWW,

I removed the file that was suggested by R.
The error was fixed, but, the shape file wasn't created.

I will broke my head to fix.
Thank you for your attention.

7

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