Matlab histogram11/14/2023 ![]() ![]() However, as is already noted in this question hist(), and also histogram(), do not natively support the handling of multiple colours. You can check its property list, you need to set b.FaceColor = color Use the nowadays recommended histogram(). (On R2007b you need to do b = get(gcf), followed by set(b, 'Color', color)) Solution 2: Check its properties on where the CData-equivalent property is. N = hist(Y) bins the elements in vector Y into 10 equally spaced containers and returns the number of elements in each container as a row vector. This means that you cannot use the regular syntax to output a figure handle that way. In R2007b b = hist() indeed outputs a 1x11 double array, being the counts in each bin. Note that MATLAB expects values between 0 and 1, not 0 and 255. Tip: you can find RGB colour values easily using any number of colour pickers online, but Googling "color picker" will give you one at the top of Search, from which you can copy the RGB values. 10 = size(color,1)ī = bar( (edges(1:end-1)+edges(2:end))/2, h ) % plot the bar chartī.BarWidth = 1 % make the bars full width to look the same as 'histogram'ī.CData = color % color is a 10x3 array (columns are RGB, one row per bar)ī.FaceColor = 'flat' % Make 'bar' use the CData colours = histcounts(x,10) % calculate the histogram data. The general concept is the same you don't have that level of control with either hist (which is deprecated anyway) or histogram, so you have to plot it in two steps using histcounts and bar, because you do have that level of control on bar plots: x = randn(100,1)*10 % random example data ![]() However, you want to specify the colours according to the colorspec letter which changes things slightly. How to draw a colorful 1D histogram in matlab Generate a bell-curve histogram from Gaussian data.Ĭhange the color of the graph so that the bins are red and the edges of the bins are white.This is very nearly a duplicate of this question: By default, the graph color is controlled by the current colormap, which maps the bin color to the first color in the colormap. ![]() See the "Example" section for more information. If you want to change the color of the graph, you can set patch properties. The histogram is created with a patch graphics object. The histogram's y-axis shows the number of elements that fall within the groups therefore, the y-axis ranges from 0 to the greatest number of elements deposited in any bin. The histogram's x-axis reflects the range of values in Y. hist distributes the bins along the x-axis between the minimum and maximum values of Y.Īll elements in vector Y or in one column of matrix Y are grouped according to their numeric range. Without output arguments, hist produces a histogram plot of the output described above. You can use bar (xout,n) to plot the histogram. ![]() Returns vectors n and xout containing the frequency counts and the bin locations. Where nbins is a scalar, uses nbins number of bins. Note: use histc if it is more natural to specify bin edges instead of centers. For example, if x is a 5-element vector, hist distributes the elements of Y into five bins centered on the x-axis at the elements in x. Where x is a vector, returns the distribution of Y among length (x) bins with centers specified by x. Each column of n contains the results for the corresponding column of Y. If Y is an m-by- p matrix, hist treats the columns of Y as vectors and returns a 10-by- p matrix n. Hist (MATLAB Functions) MATLAB Function ReferenceĪ histogram shows the distribution of data values.īins the elements in vector Y into 10 equally spaced containers and returns the number of elements in each container as a row vector. ![]()
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