Tagged Questions

Tag for questions about building histograms in Mathematica. Apart from generating the graphics, and prettifying them, this also includes methods to extract their data.

784 views

Removing a histogram's vertical edges

Let's say I have a histogram: Histogram[RandomVariate[NormalDistribution[10, 2], 500]] How can I remove vertical lines inside the histogram and keep only the ...
2k views

How can I make a heatmap of a days in year?

I know Mathematica has a ListPlot for time series but does it have a function for visualizing a list of dates as a heat map like this: This idea is from D3, check it out here.
1k views

How do I plot a histogram with hatched shading?

I can plot an ordinary histogram with blue shading and black borders like this: T = RandomVariate[NormalDistribution[0, 1], 10000]; Histogram[T, 30] And I can ...
4k views

Problems specifying number of bins in Histogram

So I wanted to create a Histogram with a custom number of bins. Luckily there is a simple function for this in the form of Histogram[data, n] where n specifies the ...
1k views

Finding the best way to visualize rather complicated data

I have the following data ...
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How to find major color in a picture?

I want to find the major color (the color which appears most often) in a picture and do some analysis later. For example, if I have this picture: What I want to do is find out that gray, red, ...
3k views

Circular Plot and Circular Histogram

The spherical or circular data arises when we measure data in degree e.g wind direction, clock and compass etc. Then representation of such data we need to plot circular plot, circular histogram and ...
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How can I create facetted histograms?

I love Mathematica, and I would love to be able to use it for all of my data analysis tasks, but there is one type of analysis which I find almost trivial in R, and I have no idea how to approach in ...
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How can I tell mathematica to generate an histogram from nominal data?

If I write: Histogram[{1, 1, 1, 2, 2, 2}] I get a nice histogram chart but if I write ...
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Histogram3D with various colors and textures on cuboids' faces

I'm trying to produce an Histogram3D-like graph, but with a little more customization. In particular I want to manually specify the color of each cuboid and to print some information on the top faces....
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Make a density list plot/histogram from large, pre-binned data set?

I have a large data set consisting of $\mathcal{O}(10^9)$ two-dimensional points. In order to save memory and time I have pre-binned these into a uniform grid of $500 \times 500$ bins using Fortran. ...
622 views

Map of United States as a 3D histogram

By combining the state data from here and the extrusion code from here I have managed to make prisms of the various US states such as However, the extrusion method looses information about the ...
451 views

Color Histogram3D by Bin Location

I am using a Histogram3D plot to view the correlation of the R & G of an RGB image. Naturally, I want the bins to have a color corresponding to their $x$, $y$ (...
321 views

I am preparing some data for dissemination. I have a series of plots that look like so, using ListLinePlot: The background shading is just being added using ...
1k views

Trying to fit an unknown extreme distribution

First up, I'm quite new to Mathematica so any hints on better code would be greatly appreciated. I have some histogram frequency data from an unknown distribution that I'm trying to fit. Here's the ...
778 views

How to rebuild original data from a histogram?

I have data in the following form. I have a list of values and a list of frequencies that indicate how often each value has occurred. Example list of values: ...
1k views

ColorFunction in Histogram[]

Let's say I have a Histogram: Histogram[RandomVariate[NormalDistribution[10, 2], 500]] and I want the bars positioned to ...
337 views

Is there a way to make a bihistogram plot?

Is there a way of making a bihistogram plot in mathematica? There is a reference to it at http://mathworld.wolfram.com/Bihistogram.html but no suggestions as to how to do it.
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Rapidly binning 3D data

I have a set of data (about 20 million datapoints for my real data) of the form {x, y, z, m}. There are 3 spatial coordinates x, ...
961 views

Mathematica: Retrieving PlotRange from Histogram

I know that one can retrieve PlotRange of a plot by using AbsoluteOptions[plot,PlotRange] but that won't work on Histogram. Here an example: ...
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I'd like to modify this chart to relocate the z axis label so it's not over printing the values. ...
4k views

How do I display a histogram with normalized counts?

I have some data corresponding to real number distances: {200.04053, 200.232123, 156.3242,...}, and I would like to bin these values and display them as a histogram ...
126 views

How to generate a Log BarLegend for a DensityHistogram

I have a Log count histogram: DensityHistogram[myData, 100, {"Log", "Count"}, ColorFunction -> "Rainbow", ChartLegends -> Automatic] But ...
1k views

Log-log scale smooth histogram

How can I create a smooth histogram with a log-log scale? I can use Histogram[data, "Log", "LogCount"] to get a log-log histogram, or I can use ...
516 views

Polar histogram

I am developing an algorithm to generate a descriptor of a 2D object based on polar histogram. suppose that we have a datalist centered in {cx,cy}. I use 36 bins where I consider 12 angles and 3 ...
136 views

Bar chart scale in multi-chart visualisation

This is a rewording of a previous question which probably wasn't very well explained, and so didn't get any responses(!). I'm trying to create a chart which shows the smooth kernel distribution of ...
487 views

How to preserve clipping when exporting a framed histogram with font embedding?

I work with histograms and would like to export it to EPS format. I've noticed that my exported image loses the PlotRangeClipping option that I set up when I export the plot. This is true for at least ...
159 views

Scale SmoothHistogram curve to Histogram

Like in this question, I would like to display a histogram and a smooth histogram in the same plot. I believe the default “bin height specification” (or $\textit{hspec}$) for ...
451 views

Representative Smooth Kernel Distribution from Truncated Distribution

I am trying to produce a better distribution from a dataset that is bounded to be greater than 0. Here is an example distribution from the documentation that mimics the behavior of the actual dataset: ...
1k views

Calculate mean of values in bins

Problem description: I have a list of $\{x,y\}$ pairs. I'd like to divide $x$ into equal[*] bins, say $bx_1, bx_2, \ldots$, calculate $\left<y\right>$ for every bin and then plot the bin values ...
136 views

Issue with combining weighted data log histograms

I have a bit of a strange problem. I'd like to overlay 3 different logarithmic Histograms with two of them stacked and one separate [*]. Without weights the solution is simple: ...
339 views

Box plot combined with histogram and normal curve

Please forgive me if this is a relatively simple thing to do, but I'm relatively new to Mathematica and I've only recently started using it to visualise some statistics for my PhD work (I'm a linguist ...
377 views

Histogram of a very large dataset?

I have a very large dataset stored in a file (over 2GB). The file contains a tab-separated table of floating-point numbers. I want to do an Histogram of all the numbers in the table. But if I try to ...
672 views

Smooth/histogram a 2D set

I have a 2D dataset like this one: {{x1,y1}, {x2,y2},...} I need to smooth/histogram the data in such a way that binning is over the x-coordinate, while counting/...
916 views

Analyzing frequency of individual letters in a large body of text

There are interesting histograms about the English language: BarChart[Counts[StringTake[WordList[], 1]], ChartLabels -> Automatic] ...
379 views

Why doesn't FrameTicks work with Histogram?

An example: Histogram[RandomVariate[NormalDistribution[], 1000], PlotRangePadding -> 0, Frame -> True, FrameTicks -> {{{0, 0}}, {}}] I expected this ...
430 views

Histogram3D using sums instead of counts

I'm trying to create a 3d histogram/ matrix plot pair. My data is in the form {{TTR1,TBF1},{TTR2,TBF2},....} What I would like is to modify the Histogram3D so ...
3k views

Is there a way to output histogram x and y data without using the Histogram chart function?

I have a large list of data (3.2 million real numbers), and I would like to plot a histogram of it. The built-in Histogram function is very nice, but on my ...
1k views

density/histogram plot for date-time data

I have date and time data and want to plot its frequency histogram. Ideally I want to be able to customize the bin size (for example, every 5 minutes or a day). Anybody has this experience?
741 views

How can we create a histogram distribution from binning data?

HistogramDistribution takes a list of data points, creates a histogram from them, and returns this histogram in a form that can be used as a distribution. I ...
100 views

Histogram with the smaller bar in front

I am trying to visualise multiple data sets in one histogram. When using one or two datasets, the automatic transparency of the bars keeps everything relatively easy to see. When going to three or ...
91 views

Remove Tick Marks without removing Numbers on Paired Histogram

I have formatting problem that I can't figure out. I'm trying to remove the tick marks on a paired histogram without removing the numbers. The trick with other plots is to make the opacity of the ...
915 views

How to scale Histogram counts with the value of bin center?

I am analyzing some variates from a steeply falling power-law distribution (approximately with a power index -4) using Histogram[data, Automatic, "PDF"] While ...
602 views

Efficiently generating histograms with large numbers of bins

I'm trying to generate a histogram for a large data set with the following lines of code: ...
197 views

How to get data from DB into dataset with keys

I'm a Mathematica newbie and I have the following problem: I connect to a Oracle DB and read out a set of variables, further on I want to histogram some of the variables. A Dataset seems to be the ...
1k views

Problem displaying eps exported histograms in Word 2010

I am having problems displaying histograms exported as .eps in Word 2010. I don't have problems though displaying them in a specialized .eps viewer. (Postsript viewer from Rampant logic) I am writing ...
460 views

How can I plot histogram with the same number of values in every bin?

For example I have 100 values sample. I'd like to build histogram in which every bin contains, for example, 10 values. How can i do that? Thanks.
2k views

How to make a multi-peak histogram fitting

I got a multipeak histogram from my data and want to fit it using a Gaussian Distribution function. ...