Displaying 20 results from an estimated 1000 matches similar to: "Superimposing vector polygons over raster grid in a plot"
2011 Mar 05
3
Change panel background color in spplot()
Hi!
How does one change the background color of the map-panel in spplot()?
Example:
library(sp)
data(meuse.grid)
gridded(meuse.grid) = ~x+y
spplot(meuse.grid, "part.a")
How would I get another background-color for the map-panel (but not for
the whole plot) here?
Thank you!
Marcel
2012 Jan 27
1
Overimposing one map in ssplot onto another
Hello!
I have 2 maps - both created in ssplot and both identical in terms of
outline. Is there any way to superimpose Map1 (which has black borders
between Canadian provinces) onto Map2 (which is also a map of Canada)?
Thanks a lot for your hints!
Dimitri
### A. Reading in Canada data at the province and then at the county level:
library(raster)
getData('ISO3') # Canada's code is
2007 Oct 08
1
do not plot polygon boundaries with spplot {sp}
Hi,
Is there a simple way to suppress the plotting of polygon boundaries with
spplot() ?
# simple list of 12 colors
cols <- brewer.pal(12, "Paired")
# plot pile of polygons, with 12 classes:
spplot(x, zcol='class2', col.regions=cols, scales=list(draw=T), xlab="Easting
(m)", ylab="Northing (m)")
... seems to work well. However the polygon boundaries
2007 Sep 05
1
geotiff or tiff files with world files
Hi,
I have a matrix of data which i can vizualize as an image - for example. I would like to save this image as a geotiff file or at a tiff file with a world file which holds the projection of my data (ultimately the data represent a map of some sort). I know i can save the data as an ESRI grid, but i am not interested in that.
I wonder if anybody knows about any code which will help me do
2013 Apr 26
1
How to export graph value in R
Dear exports,I have created a hypsometric curve (area-elevation curve) for my watershed by using simple command hypsometric(X,main="Hypsometric Curve", xlab="Relative Area above Elevation, (a/A)", ylab="Relative Elevation, (h/H)", col="blue")It plots the hypsometric curve in "RGraphics window", My question is how can I export values which is used
2011 Aug 22
1
looping with paste
Dear list,
I have a spacialPolygonDataFrame where variables were unnecessarily imported as factors. So I am trying to unfactor variables from spatialPolygonDataFrame at data with a loop
for (i in (1:length(names( spatialPolygonDataFrame)))){
command<-paste("spatialPolygonDataFrame$names(spatialPolygonDataFrame at data[",i,"])<-as.character(
2010 Dec 14
1
lattice fun: multiple themes in panels with spplot()
I have some geospatial data where two layers are thematic and the third is a
percentage, so the maps need to have different themes.
thumbDf <- as( stack( thumb), "SpatialGridDataFrame")
names(thumbDf at data) <- c("pri", "sec", "pct")
thumbDf at data$pri <- factor(thumbDf at data$pri, levels=c(0:8), labels= names(
peelClasses))
thumbDf at
2005 May 26
1
PAN: Need Help for Multiple Imputation Package
Hello all. I am trying to run PAN, multilevel
multiple imputation program, in R to impute missing
data in a longitudinal dataset. I could successfully
run the multiple imputation when I only imputed one
variable. However, when I tried to impute a
time-varying covariate as well as a response variable,
I received an error message, “Error: subscript out of
bounds.” Can anyone tell if my commands
2006 Apr 19
1
comparing execition time: R vs matlab linear algebra...
Greetings:
We are evaluating the performance of R matrix algebra es as we port a
MATLAB R14 script into R.
The MATLAB code basically evaluates the AX=B system on sparse matrices
that result in output matrices of 100 to 1,000,000 rows/columns.
Our R prototype script uses spase base matrices and the methods qr() and
qr.coeff().
The following statements are called inside a doubly-nested loop:
G
2014 May 05
3
Mapa de quantiles con spplot
Hola, no me funciona:
Te contesto lo mismo que le contesté a otro compañero de la lista, espero ser más claro.
Les comparto la carpeta con la capa y los datos que estoy usando.
https://www.dropbox.com/s/umy0evt3qm1wr4d/dissolve.zip
Esto es lo que estoy haciendo:
library(rgdal)
library(maptools)
library(sp)
library(classInt)
library(RColorBrewer)
zm <- readOGR(?.?, ?zmdis?)
data <-
2014 May 03
2
Mapa de quantiles con spplot
Hola,
Intento representar en un mapa participaciones porcentuales de los sectores económicos y no logro hacerlo con spplot.
He intentado con spplot(zm, c(?part88?, ?part93?), cuts=4, col.regions=brewer.pal(4, ?Set3?))
Lo pude hacer utilizando el base graphics de R, definiendo:
> plotvar88 <- zm$part88
> nclr <- 8
> plotclr <- brewer.pal(nclr, "PuOr")
> plotclr
2010 Oct 19
2
Tif image to 8bit colour matrix.
Dear listers,
I have a collection of tif images that I would like to convert, in R, to a
matrix containing the values of the 8bit colour. Ideally, I would like a matrix
for each of the colour channels (red, blue and green). I have 'googled' and
searched the help list but have yet to find a solution and hope that someone can
point me in the right direction.
I currently use
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",
2014 May 06
3
Mapa de quantiles con spplot
Hola,
El problema con la propuesta de Olivier es que los intervalos son
diferentes para cada variable.
La forma sencilla y rápida es:
spplot(zm["part88"], col.regions=plotclr, at=class$brks)
Pero para que quede más elegante hay que dar algunos pasos más:
## Intervalos en forma character
op <- options(digits=4)
tab <- print(class)
options(op)
intChar <- names(tab)
## Indice
2011 May 06
1
How to alter circle size
Hello all,
I'm trying to create a heatmap using 2 matrices I have: z and v. Both
matrices represent different correlations for the same independent
variables. The problem I have is that I wish to have the values from matrix
z to be represented by color intensity while having the values from matrix v
to be represented by circle size. I currently have the following in front of
me and an unsure
2014 Mar 12
3
Sobreponer dos mapas
Hola,
Estoy tratando de sobreponer un mapa sobre otro, uno que sirva de ?background? y otro con datos. Mi primer intento lo hice usando el paquete PBSmapping.
Aquí lo que hice:
library(PBSmapping)
estados <- importShapefile(?Entidades_2013.shp") #Aquí cargamos las entidades federativas (32 entidades)
zonas <- importShapefile(?zm.shp?) #Aquí cargamos las zonas metropolitanas del país
2011 Dec 03
1
side-by-side map with different geographies using spplot
Hello,
I want to create side-by-side maps of similar attribute data in two
different cities using a single legend.
To simply display side-by-side census block group boundary
(non-thematic) maps for Minneapolis & Cleveland I do the following:
library(rgdal)
library(sp)
Minneapolis=readOGR("../Minneapolis/Census/2010/Census_BlockGroup_GEO/","tl_2010_27053_bg10")
2011 Mar 04
2
make an own (different) color legend with spplot()
Hi!
Is there a way to manually costumize the color legend in an spplot() -
especially where to draw ticks and labels for the ticks?
The reason I'm asking: Usually spplot() automatically divides the data
into fitting slices and makes a color legend (also automatically).
I want to assign the slices myself and have a fixed scale instead of an
automatic/dynamic scale.
I think what I want
2010 Feb 08
1
Color intervals in image.plot function
Hi,
The script below is my current coding in order to produce a contour plot of temperature across altitude and time. In my case,?time,altitude and temperature?are represented by x, y and z variables.
##############################################
Brazilan.Pallete <- colorRampPalette(c("blue","green","yellow","red"))
image.plot(x, y, z, col =
2014 Feb 06
2
Consulta spplot
Buenas tardes,
Estoy probando a leer archivos netcdf (como raster stack) y crear
animaciones de datos de modelos climáticos y estaba utilizando para
generar las imágenes spplot(). Estás imágenes tienes superpuestas
varias capas de imagenes, el mdt de base, nubosidad, precipitación y
nieve. Mi pregunta es la siguiente,¿es posible visualizar la leyenda
de cada una de las capas?
Actualmente solo