heatmap

问题 I am trying to create a data table whose cells are different colors based on the value in the cell. I can achieve this with the function addtable2plot from the plotrix package. The addtable2plot function lays a table on an already existing plot. The problem with that solution is that I don't want a plot, just the table. I've also looked at the heatmap functions. The problem there is that some of the values in my table are character, and the heatmap functions, from what I can tell, only accept

问题 I want to make a heatmap in ggplot2. My toy data and code is: set.seed(12345) dat <- data.frame( Row = rep(x = LETTERS[1:5], times = 10) , Col = rep(x = LETTERS[1:10], each = 5) , Y = rnorm(n = 50, mean = 0, sd = 1) ) library(ggplot2) p <- ggplot(data = dat, aes(x = Row, y = Col)) + geom_tile(aes(fill = Y), colour = "white") + scale_fill_gradient(low = "white", high = "steelblue") p I want to have color scheme for ranged values like this: -3 <= Y < -2 ---> Dark Blue -2 <= Y < -1 ---> Blue -1

问题 I have the following data: a , b , c , d , e , f 375, 52, 1892, http://example.com, ::1, 1308233412 341, 52, 1892, http://example.com, ::1, 1308233412 422, 52, 1892, http://example.com, ::1, 1308233417 478, 50, 1892, http://example.com, ::1, 1308233418 58, 481, 1892, http://example.com, ::1, 1308233432 69, 481, 1892, http://example.com, ::1, 1308233432 487, 49, 1892, http://example.com, ::1, 1308233432 a = position y b = position x c = screen resolution (browser) d = host e = ip f = timestamp

问题 I'm new to R and i want to generate a one row heatmap from my data using heatmap.2 as reported in "Widespread dynamic DNA methylation in response to biotic stress", Figure 3C (Dowen et al., 2012). The following is a link to the article: pnas.org/content/109/32/E2183/1 My effective data is just a column with values between -1 and 1: deltaMeth -1 -1 -0.9 -0.8 -0.2 0.3 0.6 0.7 0.8 1 My goal is to create a heatmap similar to the reported by (Dowen et al., 2012) using my dataset. Thanks. 回答1: You

问题 This question already has answers here : Generating a PNG with matplotlib when DISPLAY is undefined (12 answers) Closed 3 years ago . I am using ubuntu 14.04 server and I capturing some depth data from my infrared camera. depth = get_depth() print np.shape(depth) The output is (480, 640). Basically it contains depth values in the form of (x,y) coordinates. I want to save this data as a heatmap in a jpeg picture, and then create a MJPEG video out of it. However, when I try to do import pylab

问题 Is it possible to generate a heatmap taking into consideration both the color and the transparency, with these two parameters given from two different matrices (matrix 1 defines color, matrix 2 defines alpha)? A little more information on what I'm after: I have successfully used R and the heatmap.2 function in the gplots package to generate heatmaps - in this case to visualize miRNA interactions. Here, what I want to show is the probability of a particular nucleotide along the typical 20-24

问题 i'm trying to plot an heatmap on a triangular surface, the coordinates and "heat values" are obtained with the methog shown on page staff.aist.go.jp/a.noda/programs/ternary/ternary-en.html. so, i process the data and obtain a data file in the form: x y val where x and y are values between 0 and 1, and val is an integer representing the frequency i need to show. the data file is this: http://tinyurl.com/lqsqtvv and the plot script is this: #!/usr/bin/gnuplot reset set terminal pngcairo size

问题 I want to use heatmap.2 in R to draw a heatmap. like this: library(gplots) heatmap.2(as.matrix(data), col=redgreen(75), scale="row", key=T, keysize=1.5,density.info="none", trace="none",cexCol=0.9, labRow=NA) However, when it running, an error like this happen: Error in setmid(d[[j]], type) : node stack overflow Can anyone give me some suggestions? 来源： https://stackoverflow.com/questions/16475081/heatmap-2-node-stack-overflow

问题 I would like to create a stacked heatmap. basically i have sub categories, I would want to show in a Heatmap. After searching I figured it is not possible to do. So I am wondering if it is possible to create a stacked heatmap instead where sub categories would be stacked on top to make a category. A mixture of bar chart and heat map. Please see the fiddle .. As a an example I tried to attain the objective with multiple series. As you can notice if the series have same values they just sit on

问题 The sample script below is for creating four heat maps with the same color scale limit. I set it this way in order for me to differentiate the differences between each heat map; however, the difference is barely noticeable. The color is currently set in a general blue range (light to darker blue). What can I do to change it to maybe a hot/cold color scheme? cd C:\Users\Aiskya\Desktop\Subjects\total A = dlmread('avg_data.txt') cd C:\Users\Aiskya\Desktop\Subjects\total B = dlmread('avg_data.txt