All Questions
Tagged with data-visualization distributions
120 questions
1
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Distributional visualization of small discrete values
I have barely under 40 small integer counts per measurement type from a study subject. The counts start from zero, and the distributions are highly positively skewed. See the annexed image. Without ...
- 43
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0
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26
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Bishop Gaussian Basis
In Pattern Recognition and Machine Learning by Christopher Bishop he says in Section 3.3.2 titled Predictive distribution
If we used localised basis functions such as Gaussians, then in regions away
...
- 11
2
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1
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46
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Plotting/modelling a histogram with large bins of small values
I'm wondering some best practices or approaches for data where, for example, as in the below image the low value bins are most common, but you are interested in the whole distribution.
Here is a ...
- 121
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3
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141
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How to work out the expected rate of success when there is a guaranteed success on the nth attempt?
I'm looking to work out how to find the expected success rate when given the rate of success but, also after n-1 failed attempts, there the success rate is 100% for the nth attempt.
Intuitively I ...
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45
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Effectively Visualizing P-value Distributions with Excessive 1.0 Values
I'm dealing with a discrete statistical test scenario where a significant portion of the P-values calculated are exactly 1.0, due to the nature of the test statistic not exceeding its observed value ...
- 143
2
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1
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3k
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How to interpret pairplots()
I have been working on a Classification problem. And I want to see how many features associate with the target variables.
Let me share an example. I got this pairplot using
...
- 367
2
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2
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79
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Are there any stat libraries that show normal distributions across values of the theta
I'm looking at the sensitivity of a hall-effect sensor and trying to characterize its abilities visually. Most sensor ranges or power ratios are dependent on the direction of the sensor and also a ...
- 235
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35
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When to put error bars on distribution density for an ordered categorical variable?
I have seen various articles putting error bars on distribution density of either ordered categorical variables or categorical variables.
$Q:$ When is it appropriate to put SE error bar on estimated ...
- 1,465
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149
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Compare CCDF of datasets with different sample size
I have 3 dataframes with the same structure (each dataframe includes a different type of tweet). Here are the columns of dataframes: id, ...
- 103
1
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2
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98
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How can I visualize the dataset with $n$ samples and $p$ variables to check whether it is from a specific and known distribution to check?
Background
The lecturer of statistical computing asked such a question in title. To be specific, the population distribution is
$$
f(x_1, \cdots, x_p) = \left(x_1^{p-1} + \cdots + x_p^{p-1}\right)I(0&...
- 43
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32
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Create a synthetic dataset from the measures of spread
I have certain measures of spread (p50, p66, p75, p80, p90, p95, p98, p99, p99.9, p99.99, p100, Median, Mean, Min, Max)as my attributes. Can I regenerate a data distribution from these?
Use case: I ...
- 1
0
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1
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496
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Help with interpreting a cumulative probability distribution graph in a journal paper
I am from the life sciences field (neuroscience research) and I am reading a journal paper about the formation of dendritic spines. In their experiments, they count the number of protrusions along ...
- 233
1
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1
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396
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Describing / fitting a highly skewed distribution
I've got a data set of 84,529 entries, each entry referring to the number of times a particular entry is cited in a database. This set is extremely skewed, ranging from entries with 0 citations to one ...
- 323
1
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2
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336
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Histogram vs Bar Graph [closed]
I have data for number of patients used to collect the data in a hospital for each day. I want to display them as a graphical representation of number of patients used to collect the data for each ...
- 13
2
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1
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85
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When is it favorable to not visualize univariate data using empirical CDFs?
A straightforward question: when is it "favorable" to interpret visualizations using, say, boxplots, histograms/density estimates, versus empirical cumulative density functions (ECDFs)?
I've ...
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3
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1
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3k
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3
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1
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2k
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Best way to plot a heavy tailed distribution?
Log-log seems more conventional to plot a probability distribution to look for evidence of a heavy tail. Why is this the case? For data with a heavier tail than an exponential distribution, wouldn't ...
user142054
1
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1
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64
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Distribution of the time delay between vaccination and death
So please first let me state that I'm absolutely pro vaccine and not trying to demonstrate anything here, I just thought that the VAERS (Vaccine Adverse Event Report System) data was an interesting ...
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2
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47
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Videogame market analysis
I'm looking if there is a name for what I'm trying to do.
TLDR: Market contains offers to exchange currency 1 for currency 2. I want to make a histogram showing total volumes of currency1 in specific ...
- 3
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0
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736
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Dimension Reduction for High Dimensional Probability Distributions
I have often seen dimension reduction techniques being performed on datasets, such as the famous Iris Flower dataset (below: common visualization techniques applied on a medical dataset):
However, I ...
1
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1
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148
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Best fit line with probability data
How do I best find a best fit line if my y data is probability functions rather than single points? Obviously, in every regression problem you can include uncertainty on the xs and ys, but I have a ...
- 11
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28
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Distribution of this degree distribution plot [duplicate]
I have plotted this distribution, representing the degree distribution of the amazon co-purchase network (2003) graph. Sadly, I do not know how to interpret this. Do you know which distribution this ...
4
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1
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1k
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How to visualize Dirichlet distribution (with more than 3 targets)?
I want to plot a Dirichlet distribution $\operatorname{Dir}(\alpha), \alpha=[\alpha_1, \alpha_2, \ldots,\alpha_n]$. However, when I google it, almost all of the results consider 3 targets ($n=3$), and ...
1
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1
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538
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Counting and percentages in EDA, analysis in binary classification
Let's asume we have a dataframe with 100 clients, 70 males and 30 females, where 10% of them buys the product and 90% doesn't.
Case 1: 7 males and 3 females buys the product = Same distributions
If ...
- 535
3
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1
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41
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Help on understanding these plots
I am very weak in the english language and I need to understand how I can describe my plots. It's the best way for me to learn, understand plots and memorize the phrases.
So my first question is, ...
- 33
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4
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420
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Web apps for visualization of probability distributions
I am looking for a tool to demonstrate how the shapes of some basic probability distributions (binomial, hypergeometric, Poisson, exponential and normal) change as a function of their parameters.
I ...
2
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0
answers
1k
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How should I label and interpret cumulative probability graphs
I've used R's empirical cumulative distribution function (ecdf) to generate a chart that shows the cumulative probability of some cost data. I want to know if the heading of the chart is correct or ...
- 239
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0
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26
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How to best display the distribution of a large dataset with many outliers? [duplicate]
I have a very large data set (~300'000 data points) and a subset of it (6000 data points), which shows the difference of travel time [in seconds] of agents before and after a road closure. I want to ...
- 113
1
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1
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423
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How to graph distribution of Order statistics?
Is there a software that can graph the pdfs and Cds of an arbitrary number of order statistics or is there some code such software?
How to do it?
I'm trying to understand the distribution of order ...
user262965
3
votes
1
answer
65
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Repeated binomial experiment with different settings, how to plot chances based on these settings?
I'm using R and have a dataset which contains data for a certain experiment which is tested multiple times in environments with different P values. The success or failure of the experiment is denoted ...
- 405
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0
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34
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Presenting the convergence of a set of distributions to a particular distribution graphically
This is not directly related to doing statistics, but rather presenting statistical data.
I have a set of values $$\{x_i\},{i\in I_t},$$
for each $t\in [0,1]$. Every set of values $\{x_i\}$ for a ...
- 237
3
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1
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198
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What is this distribution?
This is a plot of temperature against wind speed using R's weather data (nycflights13 package). The question asks what is the distribution of temperature as a function of windspeed? Honestly, I don't ...
- 215
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1
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145
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the metrics that can be used to characterize and further compare different histogram [closed]
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 ...
- 5,282
3
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1
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53
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Strobiloid representation
I am working with household income and I would like to replicate the following strobiloids generated by Chauvel (2013):
For what I understand here and from his explanation of the graph, he plots the ...
1
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1
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300
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How to best analyse distribution of distributions [closed]
How can one go by analyzing a distribution of distributions ?
An example of such a dataset is as given in this question :
What does "a distribution over distributions" mean?
Suppose ...
- 23
2
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1
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59
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Spindle-shaped distribution like a sea seal?
What probability distribution’s diagram is similar to the body shape of a Caspian Sea Seal? I mean a distribution which is rounded in the middle, and tapered at the both ends. Different distribution ...
7
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4
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12k
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How to visualize an evolution of a distribution in time?
Suppose you have a record of distribution for each day in some period. For example, some distribution which depends on a parameter which evolves over time. Suppose we have dozens or hundreds of days. ...
- 177
1
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1
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175
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Concise overview of prototypical distributions
[This question is mainly a reference request.]
I'm searching for a somehow concise and complete table of prototypical distributions that would allow a test person to easily choose which typical ...
2
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1
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38
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What interesting data manipulations can be done over 70x5 data points in a school context?
TL;DR: I am looking for ideas for a school assignment in basic statistics.
Context: My son (14 years old, French class 3ème, equivalent to 9th grade) got a group assignment in Mathematics.
They ...
- 281
9
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2
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6k
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What would be the output distribution of ReLu activation?
Suppose my data has a normal distribution and I am using an NN as a model, wherein I am applying ReLu, non-linearity to it. I am curious to know how the output distribution of the ReLu looks like?
...
- 673
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2
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2k
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Why use histogram to illustrated probability distribution
Forgive me I am a newbie of random variables. I saw a lot of course which introduce the Discrete Random Variables which always be illustrated with a histogram or ...
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3
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7k
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What does a Diagonal Gaussian Distribution look like in 3 dimensions?
I was able to find https://brilliant.org/wiki/multivariate-normal-distribution/ and I am aware the the diagonal gaussian distribution is a special case where the only entries are on the diagonal, ...
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0
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Can I use this distribution to model my data according to these plots?
I used the Anderson-Darling and the KS tests to decide whether my data and the distribution fitted on my data has the same distribution. Both tests rejects the null hypothesis.
However when I look at ...
- 33
1
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1
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86
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Characterize distribution of the output of probabilistic model
Dataset: each row is a patient. Categorical covariates $x$ (often with many categories) include patient information, one binary outcome variable indicating survival.
Background: I fitted a ...
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1
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272
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Naming Convention for distribution plots
I have come across a picture of a density plot that I understand visually and conceptually but I am confused by the terminology. It is referred to as simply a "Density Plot". Have a look:
Question: ...
- 857
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0
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binomial distribution "flower", ratios vs direct
I am working with a set of data that is very similar to the binomial distribution. It is closely simulated by a random binomial variable. In the real data, there is reason to believe there are ...
- 1,259
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2
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678
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How to compare the distributions of variables within clusters?
I used K-means to cluster 15k data points composed of 5 quantitative features scaled between 0 and 1.
I would like to compare the distributions of the features within each cluster, and also compare ...
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1
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1
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96
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Gamma distribution with error bands - correct?
I currently fitted a gamma distribution onto empirical degree centrality data. I have calculated the standard errors using Fisher information.
As I am just an economist, I am not entirely sure about ...
3
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1
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732
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Visually compare binomial and beta-binomial appropriateness in R
I'm trying to choose the best distribution family for generalized linear regression. My outcome is cross-sectional, over-dispersed proportion data (# of behaviors/20-22 possible behaviors). I used the ...
- 317
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0
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2k
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density plot of data from uniform distribution looking like normal distribution
I have generated random data from uniform distribution, runif(25, -1, 1)
I am trying to plot the density , so I used the plot function, ...
- 577