[R] Plotting world maps with locations.

Sat Feb 13 13:44:37 CET 2021

Awesome, thanks! I will make corrections and see if it will work.

On Sat, Feb 13, 2021 at 6:04 AM David Winsemius <dwinsemius using comcast.net>
wrote:

>
>
> Sent from my iPhone
>
> > On Feb 12, 2021, at 9:01 PM, David Winsemius <dwinsemius using comcast.net>
> wrote:
> >
> > 
> >
> > Sent from my iPhone
> >
> >> On Feb 12, 2021, at 1:35 PM, Jibrin Alhassan <
> jibrin.alhassan using unn.edu.ng> wrote:
> >>
> >> Hello Romanus,
> >> You are to post only the code and the error messages and not all the
> >> information from your terminal in R session.
> >
> > That’s not actually the best practice for rhelp questions. More info is
> better than less. What’s missing, however, is the data.
> >
> > —
> > David
> >>
> >>> On Fri, Feb 12, 2021, 4:35 PM Romanus Ejike <
> romanusejike1971 using gmail.com>
> >>> wrote:
> >>>
> >>> Please, I need help from anyone that can solve this problem.
> >>> I wanted to plot a world map with locations and names of the locations
> but
> >>> could not. The codes I have tried are as shown below.
> >>> ugwoke using ugwoke-HP-ENVY-Laptop-13-aq0xxx:~/Desktop$ R
> >>>
> >>> R version 4.0.3 (2020-10-10) -- "Bunny-Wunnies Freak Out"
> >>> Copyright (C) 2020 The R Foundation for Statistical Computing
> >>> Platform: x86_64-pc-linux-gnu (64-bit)
> >>>
> >>> R is free software and comes with ABSOLUTELY NO WARRANTY.
> >>> You are welcome to redistribute it under certain conditions.
> >>> Type 'license()' or 'licence()' for distribution details.
> >>>
> >>> Natural language support but running in an English locale
> >>>
> >>> R is a collaborative project with many contributors.
> >>> Type 'contributors()' for more information and
> >>> 'citation()' on how to cite R or R packages in publications.
> >>>
> >>> Type 'demo()' for some demos, 'help()' for on-line help, or
> >>> 'help.start()' for an HTML browser interface to help.
> >>> Type 'q()' to quit R.
> >>>
> >>>> NMdata <-
> >>>
> >>>
> read.table("NM1989.txt",col.names=c("SNAME","FNAME","NMTYPE","LAT","LON","ALTI"))
> Here the file is named NMdata.
>
> >>>> library(ggplot2)
> >>>> library(sf)
> >>> Linking to GEOS 3.9.0, GDAL 3.2.0, PROJ 7.2.0
> >>>> library(rnaturalearth)
> >>>> library(rnaturalearthdata)
> >>>> world <- ne_countries(scale = "medium", returnclass = "sf")
> >>>> ggplot(data = world) + geom_sf() + labs( x = "Longitude", y =
> "Latitude")
> >>> + coord_sf(xlim = c(-180.00, 180.00), ylim = c(-90.00, 90.00), expand =
> >>> FALSE) + ggtitle("World map") + points(NMdata$LON,Nmdata$LAT,col =
> "red",
> >>> cex = 0.01)
> >>> Error in xy.coords(x, y) : object 'Nmdata' not found
>
> But the error says Nmdata not found. SPELLING!!!!
>
> —
> David
> >>>> ggplot(data = world) + geom_sf() + labs( x = "Longitude", y =
> "Latitude")
> >>> + coord_sf(xlim = c(-180.00, 180.00), ylim = c(-90.00, 90.00), expand =
> >>> FALSE) + ggtitle("World map") + points(NMdata$LON,NMdata$LAT,col =
> "red",
> >>> cex = 0.01)
> >>> Error in plot.xy(xy.coords(x, y), type = type, ...) :
> >>> plot.new has not been called yet
> >>> In addition: Warning messages:
> >>> 1: In xy.coords(x, y) : NAs introduced by coercion
> >>> 2: In xy.coords(x, y) : NAs introduced by coercion
> >>> 3: In (function (display = "", width, height, pointsize, gamma, bg,  :
> >>> locale not supported by Xlib: some X ops will operate in C locale
> >>> 4: In (function (display = "", width, height, pointsize, gamma, bg,  :
> >>> X cannot set locale modifiers
> >>>> ggplot(data = world) + geom_sf() + labs( x = "Longitude", y =
> "Latitude")
> >>> + coord_sf(xlim = c(-180.00, 180.00), ylim = c(-90.00, 90.00), expand =
> >>> FALSE) + ggtitle("World map") + points(NMdata$LON,NMdata$LAT,col =
> "red",
> >>> cex = 0.01, pch = 20)
> >>> Error in plot.xy(xy.coords(x, y), type = type, ...) :
> >>> plot.new has not been called yet
> >>> In addition: Warning messages:
> >>> 1: In xy.coords(x, y) : NAs introduced by coercion
> >>> 2: In xy.coords(x, y) : NAs introduced by coercion.
> >>> I have also tried the codes below but it did not show the locations.
> >>> ugwoke using ugwoke-HP-ENVY-Laptop-13-aq0xxx:~/Desktop$ R
> >>>
> >>> R version 4.0.3 (2020-10-10) -- "Bunny-Wunnies Freak Out"
> >>> Copyright (C) 2020 The R Foundation for Statistical Computing
> >>> Platform: x86_64-pc-linux-gnu (64-bit)
> >>>
> >>> R is free software and comes with ABSOLUTELY NO WARRANTY.
> >>> You are welcome to redistribute it under certain conditions.
> >>> Type 'license()' or 'licence()' for distribution details.
> >>>
> >>> Natural language support but running in an English locale
> >>>
> >>> R is a collaborative project with many contributors.
> >>> Type 'contributors()' for more information and
> >>> 'citation()' on how to cite R or R packages in publications.
> >>>
> >>> Type 'demo()' for some demos, 'help()' for on-line help, or
> >>> 'help.start()' for an HTML browser interface to help.
> >>> Type 'q()' to quit R.
> >>>
> >>>> library("ggplot2")
> >>>> library(sf)
> >>> Linking to GEOS 3.9.0, GDAL 3.2.0, PROJ 7.2.0
> >>>> library("rnaturalearth")
> >>>> library("rnaturalearthdata")
> >>>> theme_set(theme_bw())
> >>>> world <- ne_countries(scale = "medium", returnclass = "sf")
> >>>> class(world)
> >>> [1] "sf"         "data.frame"
> >>>> ggplot(data = world) + geom_sf() + labs( x = "Longitude", y =
> "Latitude")
> >>> +
> >>> + + ggtitle("World map") + coord_sf(crs = "+proj=laea +lat_0=52
> +lon_0=10
> >>> +x_0=4321000 +y_0=3210000 +ellps=GRS80 +units=m +no_defs ")
> >>> Error in +ggtitle("World map") : invalid argument to unary operator
> >>>> ggplot(data = world) + geom_sf() + labs( x = "Longitude", y =
> "Latitude")
> >>> + ggtitle("World map") + coord_sf(crs = "+proj=laea + lat_0=52 +
> lon_0=10 +
> >>> x_0=4321000 + y_0=3210000 + ellps=GRS80 + units=m + no_defs ")
> >>> Warning messages:
> >>> 1: In (function (display = "", width, height, pointsize, gamma, bg,  :
> >>> locale not supported by Xlib: some X ops will operate in C locale
> >>> 2: In (function (display = "", width, height, pointsize, gamma, bg,  :
> >>> X cannot set locale modifiers.
> >>> I really appreciate any help rendered. Thanks
> >>>
> >>>       [[alternative HTML version deleted]]
> >>>
> >>> ______________________________________________
> >>> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> >>> https://stat.ethz.ch/mailman/listinfo/r-help
> >>> PLEASE do read the posting guide
> >>> http://www.R-project.org/posting-guide.html
> >>> and provide commented, minimal, self-contained, reproducible code.
> >>>
> >>
> >>   [[alternative HTML version deleted]]
> >>
> >> ______________________________________________
> >> R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> >> https://stat.ethz.ch/mailman/listinfo/r-help
> >> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> >> and provide commented, minimal, self-contained, reproducible code.
> >
> > ______________________________________________
> > R-help using r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
>

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