Questions tagged [geom-raster]

52 questions
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R : ggplot - use geom_raster with facet_wrap

Consider these 3 variables : A [100*1], B [100*1], and M [100*1]. Variable M has 7 classes. For each class, I would like to plot a raster like : ggplot(data = test, aes(x = factor(A), y = factor(B), fill = M)) + xlab("A") + ylab("B") + …
Basilique
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Sequence plot with ggplot2 and geom_raster

I want to create a sequence plot like here (first figure, b)): http://traminer.unige.ch/preview-visualizing.shtml But I want to use ggplot2 for this. I "melted" the data for this purpose because I don't like the wide-format. Now I plotted the…
TobiSonne
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R ggplot geom_raster increase row height to avoid overlapping of points

Hi ggplot and R experts, A newbie here. I have a usecase where I am using geom_raster for better optimisation. Here is the reproducible R script: require(ggplot2) library(ggrepel) # Create the data frame. sales_data <- data.frame( emp_name =…
Om Sao
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geom_raster does not plot all values

I have an odd behavior in geom_raster. It does not plot place tiles in all the values for some reason. It should plot 1015 non-zero values in color, but I only get a few tiles. If you filter out the non-zero values with dat <- subset(dat, w!=0) then…
shai
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geom_raster not rendering as expected

I have previously asked a related question (Status by duration bar visualisation), but I am now having trouble with the graph actually rendering... Here is the code to replicate what I currently have: testData <- structure(list(result =…
Froom2
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Using geom_raster function returns invalid 'type' (list) of argument

I am trying to plot a matrix data into d*d grid using R. So I used geom_raster function. I have data with three variables: row and col specify the location for each data point, and w is the data I wish to plot using geom_raster. I simulate the three…
Paul
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Why is geom_raster being smoothed out in a knitr doc?

I am plotting a matrix with geom_raster in ggplot. If I look at the plot myself in RStudio, it is unsmoothed: When I compile the knitr doc into a PDF, it gets smoothed somehow: Any idea what's happening? (Ignore the aspect ratio, I'd expect…
dfrankow
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