Displaying 20 results from an estimated 9000 matches similar to: "legend position"
2011 Sep 21
1
raster plot is empty
Dear R-help,
I have a problem plotting maps using the raster package when I use R
on my workplace server, but not when I use my own desktop. I suspect
the server version must be missing something and was wondering if
anyone would have any ideas.
The problem occurs after
library(raster)
f <- system.file("external/test.grd", package="raster")
r <- raster(f)
plot(f)
On
2017 Nov 22
2
How to produce rainfall maps
Fwiw the engine behind geom_raster needs explicit observation-per-row form
for input (with no structural normalization), so conversion to points is
perfectly proper here, albeit confusing in context. (It's closer to what
graphics devices actually use ultimately, but the expansion is laid out
very early in ggplot2 because there's no standard for intermediate forms.)
Cheers, Mike
On Wed,
2012 Jun 20
1
Edges and Rasters
Hi everyone!
I would like to draw a line surrounding my raster, with i want it in black,
and i don't know if its possible to change the colour.
A simple example is:
r <- raster(nrow=30, ncol=30, xmn=0)
r[]<-NA
r[393:409]<-99
r[423:439]<-99
r[453:455]<-99
r[456:460]<-30
r[461:469]<-99
r[483:499]<-99
r[513:529]<-99
plot(r,col=terrain.colors(100))
plot( edge(r,
2011 Jul 13
3
adding text to spplot
hi all,
I have a plot to which i would like to add text labels. And i cant find a way...here is the code :
enaD2<-idw(D2~1, loca=dva, newdata=grd)
pts = list("sp.points", dva, pch = 20, cex=1.5, col = "darkred
spplot(enaD2, "var1.pred",sp.layout=pts, main = "globina 60 cm", sub="D2",
2011 May 23
3
Get contour of a map
Hello everybody,
I search a function which returns the contour of map with levels like contourLines, but I would like this function return the border of the map too, because the function contourLines cannot consider the corner of the map and it is not adapted to fill polygon after that.
Thanks in advance
Pierre Bruyer
2012 Mar 19
1
plot method for rasters and layout
Hi list,
I thought I was used to layouts, but today I am facing a problem I cannot
overcome :
On my R installation (Windows 7 Pro, SP1, R version 2.13.0, daily update of
packages), I am not able to put raster plots in user defined layouts :
> layout.matrix<-matrix(c(1,2,3,4,5,5),2,3)
> layout(mat=layout.matrix)
> layout.show(5)
works fine, I get the correct frames in
2017 Nov 23
0
How to produce rainfall maps
Thank you Sarah and Mike for your explanations.
My final objective is to produce maps (png image or any kind of extension I can import in LaTeX) where rainfall data are interpolated, using the Inverse Distance method or Kriging.
My input file (pointfile.csv in the reported example) reports the station code, lat and long of the meteorological station and the rainfall value (which might be the
2010 Mar 25
4
3 levelplots and 1 colorbar
I want to create a simple plot containing three levelplots with one colorbar.
I used the "Three levelplots" code below, but the third levelplot is drawn
smaller than the first two. However, if I try the "Two levelplots" code below
it works well. Can anybody tell me how could I draw three levelplots (of the
same size) with one colorbar.
Thanks in advance, Joaquin
### Three
2013 Sep 16
1
Patch: fix segfault from empty raster
Hi,
A colleague recently came across an R crash, which I can boil down to
the following, running under Rgui on Windows 7:
library(ggplot2)
ggplot(data.frame(x=1, y=1, z=4.7), aes(x, y, z=z)) + stat_summary2d()
This reliably causes a segmentation fault. sessionInfo() below.
What's happening is that (for reasons which I'll discuss with the
ggplot2 developers) the 'colorbar'
2018 Jun 01
1
rasterize SpatialPolygon object using a RasterBrick object
I am trying to rasterize a SpatialPolygon object by a RasterBrick object.
The documentation of the raster::rasterize function explicitly says this is
allowed. Here's what I am doing
# load the raster package
library("raster")
# create a raster brick object using the example from the brick
function documentation
b <- brick(system.file("external/rlogo.grd",
2009 Sep 10
1
sppolot: fill below minimum legend value
In the plot below, there are some grid cells that have values below 10, which
is the lowest "cut" value I have specified. Is there a way, without
adjusting the number of cuts, to tell R to fill in those cells with the
lowest possible color (in this case greeen)? There is a white "hole" in the
image about a quarter of the way in from the left side, this is what I would
like to
2013 Jun 23
1
Fault geology xyz to raster
Hi,
I have a 3-d geology problem. I have an xyz fault data set. I am able to
view the data set in R using plot3-d but cannot create a raster from it. I
need to create a raster and export so that it can be read in arcscene. Can
anybody help?
Thanks
--
Shane
[[alternative HTML version deleted]]
2012 May 10
2
converting raster image
Dear R users,
I was wondering how I can convert a raster image (that made R through interpolation) into an ascii or csv format?
this is the last line of my command
p <- interpolate(r, tpsfit)
So p is my raster file which I want to convert into ascii or csv
Many thanks
Regards
Mintewab
2012 Apr 05
2
random sample from list
random selection of cells in raster based on distance from xy locations
Hi,
I am trying to sample a raster for random cells that occur within a
specific distance of point locations. I have successfully found multiple
ways of doing this but have memory issues with very large datasets. To
overcome this problem I am working with lists. I am now stuck on how to
randomlly sample the correct elements
2013 Jan 29
2
Netcdf and Raster Package Questions, Need .asc File for GIS
Hello R-Group,
I am new working with netcdf files and the raster package in R.I am
trying to read in a netcdf file using the package "ncdf".I am able to
get the lat, lon and parameter I need and can plot using
fill.contour.Ultimately, I am trying to create a .asc file to reafd into
GIS.I am using the package "raster" to read the parameter.When I read in
with
2006 Apr 18
4
how to change legend size in a figure
Dear All,
I am producing a figure with many curves on it. How do I make the legends for all those curves smaller so that it can fit the figure itself? The commands I used for ploting are:
plot(x1,y1,col=1,lty=1)
lines(x2,y2,col=2,lty=2)
...
legend(0.3,0.4,c("name1","name2",...),col=1:20,lty=1:20)
Any tips for making the legend fit the figure will very welcome! Thanks!
Best,
2014 Jun 10
2
Como controlar la altura de "colorkey" en levelplot de RatserVis
Hola miembros de la lista,
Estoy utilizando la función levelplot del paquete rasterVis para graficar
un raster y quiero controlar la altura de la referencia de color (colorkey)
del mapa, pero cuando cambio valores en el argumento "height" no parece
provocar cambios. Alguna idea de por qué no está funcionando?
> cobertura
class : RasterLayer
dimensions : 780, 1296, 1010880
2007 Nov 30
2
using color coded colorbars for bar plots
Hello R Fundi,
The poetic title of this post is a request for help in regard to a
"simple" plotting question.
I have displayed the mean observations of a series variables using
barplot(). On the same figure I have colored the bars to represent the
Standard deviation of each variable using color.scale(). Now I wish to
add a graduated colorbar (legend) that corresponds to the colors
2006 Dec 01
1
memory problem
hi to all,
frustated for this error, to day i buy a 1 GB memory
slot for my laptop
now it have 1,28GB instead the old 512, but i've the
same error :-(
damn!damn!....how can i do?
repeat for a little area (about 20X20 km and res=20m)
it work fine!
have you any suggestion?
is ther a method for look if this error depend from my
ram or other....?
thanks foe any suggestion!
i need your help.
2004 Nov 26
1
Multi-figure plotting
Dear R-ians,
I have a question concerning plotting different plots on one figure. I
have written a script to plot an image, a legend (based on different
rectangles) and a timeseries plot on one figure.
In my R-lagnuage it looks like this (without arguments that are not
usefull for my question):
#---> I first define the functions
image.data<-function(...){
....
#-->Plot the