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

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8
votes
3answers
529 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: ...
4
votes
1answer
321 views

How can I have an axis label automatically positioned below the X-axis?

I'm attempting to generate some histograms, and I'd like to automatically label the X-axis. However, Histogram[. . ., AxesLabel -> {"X", "Y"}] places the "X" ...
14
votes
6answers
1k views

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, ...
6
votes
3answers
263 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 ...
6
votes
1answer
219 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: ...
6
votes
3answers
368 views

AxesLabel in Histogram3D unreadable

I'd like to modify this chart to relocate the z axis label so it's not over printing the values. ...
7
votes
1answer
528 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: ...
5
votes
3answers
311 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 ...
20
votes
3answers
1k 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.
14
votes
4answers
550 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 ...
11
votes
1answer
1k views

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. ...
8
votes
2answers
806 views

ColorFunction in Histogram[]

Let's say I have a Histogram: Histogram[RandomVariate[NormalDistribution[10, 2], 500]] and I want the bars positioned to ...
14
votes
3answers
834 views

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 ...
11
votes
4answers
278 views

Background Shading in Histogram3D

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 ...
6
votes
3answers
813 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 ...
5
votes
2answers
248 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 ...
0
votes
1answer
165 views

Better way to plot multiple discrete PDFs?

I often find myself trying to plot multiple PDFs for my courses. I find the default tools available to me are lacking and/or cumbersome. After readings some suggestions here, I have come up with the ...
5
votes
1answer
230 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 ...
4
votes
2answers
479 views

Add two Histograms to calculate summed Mean and StandardDeviation

As a follow up to this question: Calculate mean and standard deviation from ImageHistogram I would like to add two histograms before calculating the mean and StDev. I would like to sum the numbers, ...
4
votes
2answers
2k views

Calculate mean and standard deviation from ImageHistogram

I am doing my PhD in Clinical Neuropsychology; I had someone helping me analyse images (.jpg pictures) in Mathematica, but it turns out this person made some really bad decisions, and well, now I have ...
2
votes
2answers
242 views

Misaligned DensityHistogram, DistributionAxes & PlotRange

data = RandomReal[NormalDistribution[0.5, 0.1], {10000, 2}]; DensityHistogram[data, PlotRange -> 1, Method -> {"DistributionAxes" -> "Histogram"}] The ...
1
vote
2answers
396 views

Probability density histogram with unequal bin widths

I am confused by output of Histogram and HistogramList for probability density ("PDF") when ...