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Questions tagged [histogram]

A histogram is a graphical representation of the frequencies of a continuous variable. The variable is divided into bins and a bar is drawn for each bin, proportional to its frequency in the data.

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the metrics that can be used to characterize and further compare different histogram

There is a set of different data set, each of which corresponds to a histogram. Are there any metrics that can be used to characterize the shape of each histogram, and further compare different ...
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Clustering using histograms

I need to find clusters in a very large amount of data (>2M data points), and I was looking for ways to speed up the usual algorithms, i.e. k-Means, DBSCAN, ... Is there any major issue, especially ...
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If I can identify anomalies and outliers with a histogram, why should I perform clustering techniques? How are they different?

I am trying to find outliers in a set of data. When I did the exploratory analysis, the outliers are clearly spotted in the histograms. Is clustering better than histograms? Do they provide more ...
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Gaps in histogram for geometric distribution

I'm attempting an assignment in which we're supposed to write a function to simulate a geometric distribution with $p=0.03$. While plotting a histograms for about $100000$ simulations of the function, ...
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Wikipedia's Article on the Histogram [duplicate]

Wikipedia's nice article on the histogram contains the following sentence: "Using wider bins where the density of the underlying data points is low reduces noise due to sampling randomness; using ...
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how to scale the density plot for my histogram

I have the histogram plot and I'd like to overlap it with density line for the same data. Importantly, I don't want to turn histogram into density values, but want to keep N (numbers) on y axis. Is ...
80 views

How to plot a marginal histogram correctly? Why is my plot different to the one in a textbook?

Chapter 1 of "Machine Learning - A Probabilistic Perspective" by Kevin Patrick Murphy gives this figure (fig_1), and says this is a pairwise scatter plot on iris dataset. The diagonal plots the ...
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Sparkline type visualisation of demographics in papers (introducing new 'non-standard' visuals)

It seems typical to include only basic statistics on subject demographics within papers (i.e. mean, max and min). It seems to me that having a knowledge of the actual distribution would be provide ...
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how to calculate the difference between multiple distribution(or frequency list)

Here is the scenario: I have a dataset, which contains list of data points, each point has F features(i.e. float numbers) and a category(there are C categories). I want to compare the difference of ...
88 views

What does a p value histogram that is “normally” distributed mean?

Let's say I performed 100 tests and and want to correct for multiple comparisons. Before I do so, I plot the unaltered p values in a histogram to see what the distribution looks like. If the null ...