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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6
votes
3answers
205 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 ...
3
votes
1answer
153 views

How do you make a 3D city population graphic?

I want to make a graphic that has the shape of a country, finds all the cities of that country, gets their coordinates and populations and turns that into a SmoothHistogram3D with the population being ...
2
votes
2answers
140 views

Cumulative histogram with log-log scale

How to do a cumulative histogram on Mathematica on a log-log scale? This question is pretty straightforward, but a search didn't help me at all. Keep in mind that all I have is a list of n numbers ...
0
votes
0answers
35 views

Setting chartlabels in a histogram

I have two data that I use to build the following histogram code: ...
3
votes
1answer
89 views
5
votes
1answer
94 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 ...
1
vote
1answer
113 views

Country density plot of lines (highways)

I love solution from question (histogram as well as distrubution) http://mathematica.stackexchange.com/questions/31948/show-density-plot-on-us-map#=. But both cases are a bit more difficult in my ...
0
votes
0answers
42 views

Comparing heavy tailed and non-heavy tailed distribution using Mathematica

I have data from a heavy tailed distribution (see picture 1) and a non-heavy tailed distribution (see picture 2) and want to compare it using a histogram on log-scale. However the picture 3 does not ...
3
votes
1answer
76 views

How to evaluate differential entropy from raw data?

I want to evaluate the differential entropy according to here $$h(X) = - \int f(x) \log{f(x)} dx$$ where $f$ is the probability density function. Lets create some test data (normal distribution): ...
1
vote
0answers
38 views

Sizing elements correctly in a DistributionChart with custom ChartElementFunction

This is a follow-up question to Histogram scale error when using DistributionChart; Weird output of DistributionChart is also related. I'd like to make a DistributionChart where the elements are ...
1
vote
1answer
85 views

Histogram from a list of matrices

I have a list of around 100 matrices, that looks like this ...
1
vote
0answers
35 views

Fill histogram with pattern [duplicate]

Is there a way to fill a histogram with a pattern such as hatched lines? I'm imagining something along the lines of ...
2
votes
1answer
125 views

Custom SmoothHistogram3D

I decided to make my own SmoothHistogram3D function because I wanted to be able to specify my own bin sizes and not rely on their distribution functions so taking a cue from this answer and bringing ...
4
votes
1answer
76 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: ...
3
votes
1answer
75 views

Binning of listplot [duplicate]

I have two arrays describing a 1-dimensional mass distribution. The first array, $x$, are the (un-sorted, and un-evenly distributed) x-coordinates; the second, $m$, the corresponding masses. I would ...
3
votes
2answers
174 views

Histogram with variable bin size [closed]

Suppose I have some dataset,e.g., Histogram[RandomVariate[PoissonDistribution[2], 10000], 10] which gives, $\hspace{2cm}$ How can I change the histogram such ...
3
votes
2answers
172 views

How to extract the probability density function from SmoothHistogram? [duplicate]

I have some data.I plot the histogram with SmoothHistogram in Mathematica. If the y-axis of the histogram is my p(x) function, I want to plot f(x)=(1/n)ln(p(x)) ...
5
votes
2answers
632 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 ...
11
votes
2answers
324 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 ...
3
votes
2answers
265 views

Multiple histograms grouped in a chart

I have this problem: I have three distributions and the relative histograms. But I would like to create an histogram in which the three columns of each single histogram for the same bin are put ...
2
votes
1answer
404 views

Histogram with a logarithmic scale for the y-axis

How can I get a histogram with a logarithmic scale only on the the y-axis? With ...
5
votes
1answer
404 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 ...
6
votes
3answers
382 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 ...
2
votes
1answer
138 views

Discontinue, then continue x-axis of 2D Histogram

I have the pictured Histogram. It was generated by the following lines: ...
1
vote
1answer
138 views

Get histogram of number of vertices per component of graph H

I have a huge graph with ~8k vertices and ~1k components. I want a histogram showing the number of vertices for each component. How do I do this? EDIT: I'm trying ubpdqn's approach, but not gettting ...
2
votes
1answer
107 views

Histogram scale error when using DistributionChart

I'm a novice Mathematica user that is having some problems using the HistogramDensity function in a DistributionChart. My observations are heavily skewed to one category and the height of the other ...
0
votes
0answers
71 views

Ticks don't display on Y-Axis of Histogram when using PlotRange

I have a histogram, if I create it without specifying the PlotRange it works fine and the ticks on the Y-Axis are displayed ...
0
votes
2answers
134 views

How to 'center' a Histogram

How can a generate a histogram so the peak of the distribution is at x=0? I want to center these histograms for comparison ...
1
vote
1answer
123 views

SmoothDensityHistogram with logarithmic density

Is there a simple way for making SmoothDensityHistogram plots have logarithmic scaling for the density? With DensityHistogram ...
0
votes
2answers
191 views

Histogram plot with descriptive statistics on the plot

I am wondering in Mathematica Can we generate histogram plot with descriptive statistics, such as mean, median, and skewness, attached to the plot ? For example, we may place all the statistics to ...
2
votes
2answers
263 views

Misaligned DensityHistogram, DistributionAxes & PlotRange

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

How to normalise a line in mathematica

I'm working on creating a line plot from a histogram, as in the following: ...
0
votes
1answer
179 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 ...
1
vote
2answers
177 views

Analyzing Betting (Keno) in Mathematica [closed]

Keno is a popular lottery game that is available with all of the larger casino softwares. The player is given a ticket with 70 numbers on it. He picks 1 to 11 numbers on the ticket. 20 winning numbers ...
4
votes
1answer
172 views

DensityHistogram label/display values in Mathematica 8

I'm trying to make a DensityHistogram in Mathematica 8 that overlays the histogram values for each location. What I want is for the value of each square to be ...
1
vote
1answer
264 views

Export data of a 3D histogram

I want to export the data of a three dimensional histogram in the format # x y z with a blank line between different lines, so that one can plot the ...
8
votes
3answers
563 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: ...
1
vote
1answer
162 views

Exporting SmoothHistogram plot data

My program produces a large data set, which is distributed by some unknown function. I've used SmoothHistogram to visualise it crudely as a probability distribution ...
2
votes
1answer
204 views

Making a histogram of a user defined random variable

Suppose I want to generate a histogram of $n$ trials a slightly complicated random variable in Mathematica. Is there an easy way to do this? For instance, to make a histogram of a normal variable one ...
3
votes
1answer
198 views

Making multiple sideways histograms/bell curves around temporal data

I don't quite remember what this type of plot is called, but here is the idea: I have some data which is indexed by time, and I want to look at the evolution of the distribution of that data as time ...
15
votes
4answers
672 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 ...
2
votes
1answer
72 views

How can I turn off generation of Dynamic elements by Histogram?

By default Histogram generates Graphics expression with embedded Dynamic constructs as can ...
0
votes
1answer
125 views

Understanding distribution chart

How to explain DistributionChart function in mathematica, For example: if I have ...
0
votes
1answer
100 views

Histogram For Non-Numerical Data

I have a non-numerical data, let say data = Table[RandomChoice[{0.2, 0.3, 0.25, 0.15, 0.1} -> {"A", "B", "C", "D", "E"}], {500}]; and i want to make a ...
1
vote
2answers
267 views

How to interpret an image histogram and plot histogram3D for an image?

I'm really finding many ambiguities in how I really should interpret the histogram of an RGB image? I could understand what the height denotes, but did not understand how the pixels get plotted on a ...
3
votes
3answers
500 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 ...
5
votes
1answer
460 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 ...
12
votes
2answers
321 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 $x$, $y$ ...
4
votes
2answers
540 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?