search for: colorkey

Dear R-ers, I'm not sure if this is a missing feature, a support request, or stupidity on my part, but nevertheless, its a question. Is it possible to add titles to colorkey legends? As far as I can tell, there is a command to do it for normal "key" legends, but not for "colorkeys". eg it works for a normal key, created through auto.key xyplot(decrease ~ treatment, OrchardSprays, groups = rowpos, type = "a", auto.key = lis...

A recent paper on visualisation (in Neuron, a leading neuroscience journal) surveyed how well previous articles in this journal labelled their graphs (e.g. axis labelling and describing their error bars). Of particular interest is that (only) 40% of plots labelled what their colorkey was showing (variable and units). The paper is at http://dx.doi.org/10.1016/j.neuron.2012.05.001 R is not yet that prominent (compared to matlab) in Neuroscience, so I doubt many of the graphs were generated by levelplot() and friends. However, how can the colorkey be labelled? I notice that thi...

R does a great job with the fine details regarding plots. e.g in the following: library(lattice) y <- -4:4/10 xyplot(y~1, las=1) the y axis is labelled with numbers -0.4, -0.2, 0.0, 0.2, 0.4 with the numbers aligned on the decimal point. How do I get the same behaviour in the colorkey of a levelplot? e.g. levelplot(matrix(y,3,3)) the numbers in the colorkey seem left-aligned, and because of the minus sign, the numbers now do not align on the decimal point. Likewise when the number of digits changes: levelplot(matrix(4:12,3,3)) Thanks, Stephen

Dear R'ers, I've scanned available documentation and the web, but I can't seem to figure out where I've gone wrong in adding numbers to scale the colorkey in levelplot (Lattice package). For example, levelplot(z, contour=T, labels=T, cuts=10, region=T,... colorkey=list(T, space="bottom", at=seq(0,2000,length=20), labels=list(as.character(seq(0,2000,length=20)))) ) I...

When using a wireframe, I need to move the colorkey from the "right" position (default0 towards the plot. I have also needed to adjust the height and used the code colorkey=list(T,space='right',height=.5) I have looked at documents (within levelplot) but cannot find a way to move the colorkey other than right, left, bottom and t...

I'm a new user of levelplot, and are not familiar with the terminology very well. Is the bar alongside the levelplot indicating color or shade call "colorkey"? I have to adjust the size of its label, but couldn't make it so far. This is how I did: levelplot(z~x*y, grid, at=seq(0,1,by=0.1), colorkey=list(labels=list(cex=2))) But I got error message "Error in draw.colorkey(x$colorkey) : Object "at" not found". I tried to...

I am drawing level plots but I would like to specify the range of the colorkey, I am not having any success figuring this out so any help would be greatly appreciated! Here is an example of what I am trying to do: disp<-1 x <- seq(1, 10,by=1) y <- seq(1,10,by=1) g <- expand.grid(x = x, y = y) g$z <- 1/exp((abs(g$x-5)+abs(g$y-5))*disp) g$z<-g$z/sum(g$z)...

...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 levelplots ### frame <- matrix(rnorm(16*48), nrow=16) p <-levelplot(frame, colorkey=FALSE) print(p, position=c(0,0,1/3,1), more=TRUE) p <-levelplot(frame, colorkey=FALSE) print(p, position=c(1/3,0,2/3,1), more=TRUE) p <-levelplot(frame, colorkey=TRUE) print(p, position=c(2/3,0,3/3,1), more=FALSE) ### Two levelplots ### frame <- matrix(rnorm(16*48), nrow=16) p <-leve...

I am using the lattice packge for its levelplot and contourplot. Is it possible to adjust the line thickness of the 'box' and tickmarks in these plots? Thanks for the attention, Matt Sundling

...e loop. Unfortunately, this did not work. Any suggestions? As you can see from the provided example, there is another problem with such animations: You do not see any difference in the plots (because only the "height" changes). Is there any possibility to keep a fixed scale for the colorkey (fixed labels and also fixed colors) and to see the different heights of the function from the colors (e.g. the first plot should be mainly gray (as it is the "lowest"), the last one mainly white (as it is the "highest")). Thanks very much! marius Here is a complete min...

...2M","5M") really visible on the rest of the key. I want each gap (no matter its numerical range) to occupy one evenly-spaced "block" on the color key, so they're all readable by the user. I want it to display value on a logarithmic scale (0,1,10,100,1000,...). The colorkey only seems to support linear scales (0,2,4,6,8,10,...), at least by default, and I don't see any options in the help to change that default. Does levelplot support this? Or am I destined to draw the colorkey manually (very painfully using polygon calls and user coordinates)? Or are there...

...l size presented in 3 columns and 2 rows. I've tried to approach it two ways. The first way leads to this question: Is there any way to concatenate levelplots from a factor vertically as opposed to horizontally? I'd like to pair the levelplots by factor.2 on top of each other with the colorkey at thebottom, resulting in 3 columns of paired levelplots. I can only get 3 rows of paired levelplots. Here is some mock code to illustrate the point: start = expand.grid(1:10,1:14) start2 = rbind(start,start,start,start,start,start) z = rnorm(840) factor.1 = c(rep("A", 280), rep(&quot...

Hi, I use the levelplot function of the lattice library with the option col.regions=gray(200:400/400) in order to get a "color-grid" of 201 different gray colors (actually if you look at the vector, some consecutive colors are the same). In order to make the colors in the colorkey as "smooth/continuous" as possible I use the maximal number which is possible for the "cuts"-options, i.e. I use cuts=200 (the standard for col.regions is 100 colors between green and red, so the maximal number for cuts is 99. A higher number for "cuts" starts th...

...r(x^2, y^2, "+"))) grid <- expand.grid(x=x, y=y) grid$z <- cos(r^2) * exp(-r/(pi^3)) my.levs <- seq(-1,1,by=0.1) my.cols <- grey(0:length(my.levs)/length(my.levs)) levelplot(z~x*y, grid, at=my.levs, scales=list(log="e"), xlab="", ylab="",colorkey = list(space = 'top'),col.regions = my.cols) # is there a way to add a marginal histogram above the colorkey? histogram(~z, grid, breaks=my.levs,col=my.cols,xlab='',ylab='', scales = list(draw = FALSE), par.settings = list(axis.line = list(col = "transparent&quo...

Hi! Im sorry to bother you but I cant fix this. I use the lattice function levelplot and I want the colorkey at the bottom, how do I get it there? I have tried changing colorkey.space and changing in legend but I cant get it right, plz help btw I'd like to speceify strings to appear at the tick marks and also there I fail any thoughts? cheers Ernst

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 (nrow, ncol, ncell) resolution : 30, 30 (x, y) extent : 530156.6, 5690...

...t;nouveau_drm.h" + +#include "nouveau_bo.h" +#include "nouveau_connector.h" +#include "nouveau_display.h" +#include "nvreg.h" + + +struct nouveau_plane { + struct drm_plane base; + bool flip; + struct nouveau_bo *cur; + + struct { + struct drm_property *colorkey; + struct drm_property *contrast; + struct drm_property *brightness; + struct drm_property *hue; + struct drm_property *saturation; + struct drm_property *iturbt_709; + } props; + + int colorkey; + int contrast; + int brightness; + int hue; + int saturation; + int iturbt_709; +}; + +static uin...

...0644 --- a/drivers/gpu/drm/nouveau/dispnv04/overlay.c +++ b/drivers/gpu/drm/nouveau/dispnv04/overlay.c @@ -46,7 +46,6 @@ struct nouveau_plane { struct drm_property *brightness; struct drm_property *hue; struct drm_property *saturation; - struct drm_property *iturbt_709; } props; int colorkey; @@ -54,7 +53,7 @@ struct nouveau_plane { int brightness; int hue; int saturation; - int iturbt_709; + enum drm_color_encoding color_encoding; void (*set_params)(struct nouveau_plane *); }; @@ -166,7 +165,7 @@ nv10_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, if (fb-&gt...

Hi, all. I made the main figure of levelplot upside down by transposing and proper indexing; upper left corner is the biginning of matrix. However, I can't figure out how I can upside down the vertical colorkey right side of the main figure. Any help will be greatly appreciated. Minho

How to add units (e.g. "cm") to the color key of a lattice levelplot? The plots looks fantastic, but it would be nice to indicate somewhere near the end of the color key that the values associated with its colors are in centimeters or some other physical units. The only thing I find is the possibility to specify the labels so that one explicitly includes the units. That leaves