[GRASS-stats] Cannot read raster or vector maps from GRASS within R

[Veronica Andreo]

Thanks Roger!
I just tried that and was about to write again saying "dismiss my previous
email" but you were faster! :)

El mié., 23 oct. 2019 a las 14:36, Roger Bivand (<Roger.Bivand at nhh.no>)
escribió:

> On Wed, 23 Oct 2019, Veronica Andreo wrote:
>
> > Hi
> >
> > I'm trying to read raster and vector maps from GRASS (located in my
> > grassdata) into R as I used to do until last month, but I'm getting the
> > following error:
> >
> >> library(rgrass7)
> > Loading required package: XML
> > GRASS GIS interface loaded with GRASS version: GRASS 7.8.1dev (2019)
> > and location: nc_basic_spm_grass7
> >> use_sf()
> >> v <- readVECT(roadsmajor)
> > Error in doGRASS(cmd, flags = flags, ..., parameters = parameters,
> echoCmd
> > = echoCmd,  :
> >  object 'roadsmajor' not found
>
> v <- readVECT("roadsmajor")
> # maybe - it isn't an object in the R workspace
>
> Roger
>
> >> execGRASS("g.list", parameters=list(type="vector"))
> > hospitals
> > nc_state
> > points_of_interest
> > railroads
> > roadsmajor <-- it is there
> > schools
> >
> > I tested with grass76 and 78 in case it could be some python issue (76 is
> > python 2 and 78 is python 3), but I'm getting the same error with both
> > GRASS versions.
> >
> > Has anything changed since september? This worked at the opengeohub
> summer
> > school.
> >
> > I paste the session info below. Thanks in advance for any help :)
> >
> > Vero
> >
> >
> > ---
> > sessionInfo()
> > R version 3.6.1 (2019-07-05)
> > Platform: x86_64-redhat-linux-gnu (64-bit)
> > Running under: Fedora 30 (Thirty)
> >
> > Matrix products: default
> > BLAS/LAPACK: /usr/lib64/R/lib/libRblas.so
> >
> > locale:
> > [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
> > [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
> > [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
> > [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
> > [9] LC_ADDRESS=C               LC_TELEPHONE=C
> > [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
> >
> > attached base packages:
> > [1] stats     graphics  grDevices utils     datasets  methods   base
> >
> > other attached packages:
> > [1] rgrass7_0.2-1 XML_3.98-1.20
> >
> > loaded via a namespace (and not attached):
> > [1] tidyselect_0.2.5   purrr_0.3.2        reshape2_1.4.3     sf_0.8-0
> >
> > [5] splines_3.6.1      lattice_0.20-38    colorspace_1.4-1
> > generics_0.0.2
> > [9] stars_0.3-1        stats4_3.6.1       survival_2.44-1.1
> > prodlim_2018.04.18
> > [13] rlang_0.4.0        ModelMetrics_1.2.2 e1071_1.7-2
> pillar_1.4.2
> >
> > [17] glue_1.3.1         withr_2.1.2        DBI_1.0.0
> foreach_1.4.7
> >
> > [21] plyr_1.8.4         lava_1.6.6         stringr_1.4.0
> > timeDate_3043.102
> > [25] munsell_0.5.0      gtable_0.3.0       recipes_0.1.7
> > codetools_0.2-16
> > [29] caret_6.0-84       parallel_3.6.1     class_7.3-15       Rcpp_1.0.2
> >
> > [33] KernSmooth_2.23-15 scales_1.0.0       classInt_0.4-1     ipred_0.9-9
> >
> > [37] abind_1.4-5        ggplot2_3.2.1      stringi_1.4.3      dplyr_0.8.3
> >
> > [41] grid_3.6.1         tools_3.6.1        magrittr_1.5
> > lazyeval_0.2.2
> > [45] tibble_2.1.3       crayon_1.3.4       pkgconfig_2.0.3
> MASS_7.3-51.4
> >
> > [49] Matrix_1.2-17      data.table_1.12.2  lubridate_1.7.4    gower_0.2.1
> >
> > [53] assertthat_0.2.1   iterators_1.0.12   R6_2.4.0
>  rpart_4.1-15
> >
> > [57] units_0.6-4        nnet_7.3-12        nlme_3.1-140
> > compiler_3.6.1
> >
>
> --
> Roger Bivand
> Department of Economics, Norwegian School of Economics,
> Helleveien 30, N-5045 Bergen, Norway.
> voice: +47 55 95 93 55; e-mail: Roger.Bivand at nhh.no
> https://orcid.org/0000-0003-2392-6140
> https://scholar.google.no/citations?user=AWeghB0AAAAJ&hl=en
>
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