Questions tagged [data-visualization]

Constructing meaningful and useful graphical representations of data. (If your question is only about how to get particular software to produce a specific effect, then it is likely not on topic here.)

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13 views

Web based chart tool? [closed]

Several of the users in my organization avoid statistics software, so they use Excel instead. And use of pivot tables there makes it possible to calculate desciptive measures and tables. However, some ...
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7 views

Adjusting plot legend so it no longer covers the plot (matplotlib and pandas)

I have a dataframe with 2 columns: ID and Heart Rate The dataset is in long format and there exactly 50 recorded time intervals per patient (n=10) corresponding to 50 consecutive hours. I've created a ...
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Link prediction Using ARIMA model, how to do it?

I am trying to replicate this paper for predicting link on dynamic network Link prediction using time series of neighborhood-based node similarity scores Here i what i did, in each network snapshot i ...
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1answer
27 views

How to deal with standard deviation using percentage values [closed]

I have the following issue: I have calculated a mean value of customer engagement over a sample of 30 individuals. We present them with material to consume and calculate the engagement as (number of ...
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1answer
41 views

Build graph of transitive relationships in R [closed]

I am wondering given the type of directed graph A, how do I convert it into the type of directed graph B? Basically, in graph B, I want to ignore Node X and only retain the Node T. Conceptually, I am ...
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11 views

Data visualisation and exploration for count data

I have a fairly large data set with ~1000 observations about residents of an area. This is a dataset consisting of 15 variables, of various types (eg age, sex, income, years spent living in the area ...
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Interactive map beginner question [closed]

Hello all and happy Easter. I started this project of mine trying to create a database for history of architecture in Vietnam . The intention is to creat an interactive map where different circular ...
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18 views

Plotting series of pdfs and cdfs with different parameters [migrated]

I am hoping to reproduce something similar to this image in R. My goal is to plot a series of pdf and/or cdfs on the same graph of the Rayleigh and other distributions with different parameters. ...
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15 views

Single plot to illustrate two linear mixed effect model in R

I have been analysing my longitudinal data using linear mixed effect model, each person measured at 2 time points. Because my time is binary (first and second month), I have created a two dataset (...
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1answer
11 views

In which of the following scenarios is it appropriate to use line charts to display the data?

I am trying to understand when it is appropriate to use a line chart to display the data in a data set. It is my understanding that the x-variable should either be continuous, or should represent time....
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1answer
33 views

Which plot to check for heteroscedasticity in a multiple regression model

I have a linear model like: Reg.Model = lm(Y~X1+X2+X3, data=DF) If I want to check for the presence of heteroscedasticity using a plot, should I plot the residuals ...
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14 views

presenting granger causality results for non technical people

I've doing some time series analysis using granger-causality tests. In python with statsmodels the output is in the format below ...
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10 views

Plotting beta coefficients from different linear regression models R

Is it possible, in R, to plot selected beta coefficients from three different linear regression models in one graph? I would like to obtain something like this, but with only one of my predictors from ...
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1answer
19 views

How do I interpret this non-significant simple moderation analysis?

I've performed a simple moderation analysis (model 1) using PROCESS v3.5 . My Dependent Variable is Y, my Independent Variable is X, and my 'moderator' is M. All my variables are continuous. PROCESS ...
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1answer
17 views

How to Find out the Best Way to Encode Data in ML?

I have been thinking in this problem for quite a while, I cannot figure out a way of knowing, (based on the task) what will be the best data encoding I can do for training the model. Imagine I have a ...
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1answer
39 views

Plot for unbiasedness

I was reading a paper and the authors describe a plot which they used to determine whether their estimator was unbiased. This plot is described as follows (verbatim): To assess if the probabilities ...
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17 views

visualizing the change in value over a time from a starting point [closed]

I apologize for not knowing the proper name of this study. Let's say I have a series of dates and temperatures. I would like to create a chart that shows the change in temperature. ...
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2answers
37 views

How to have graphical vizualisation of this table in R?

Actually, I have this kind of table I want to summarize into a graphic in R (preferably with ggplot2). Where the first three columns are the possible combinations of three methods (where 0 is absence ...
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22 views

Alternative for boxplot with log-x scale

I am analyzing the behavior of a distribution with a logarithmic x-scale on a pretty large range. Initially, I thought using boxplots might be a good idea to understand how the data behaved, but now I ...
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9 views

Making a contour plot with variables divided into two categories

I'm trying to make a contour plot depicting the combined impact of two categories of parameters on the performance of an application. I want to show that the impact of the combined application and ...
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1answer
31 views

How to visualize distances?

I have a list of cities and the distance between each city. A -> B: 3km A -> C: 5km A -> D: 1km B -> C: 1km B -> D: 2km C -> D: 5km I would like ...
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22 views

What is the best way to visualise the comparison between these two data sets?

I have two data sets that I need to compare. One set is the number of holdings in my library by collection (e.g. Adult Fiction - 10k copies, Child Fiction - 5k copies etc.). My other data set is ...
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1answer
34 views

Question about the interpretation of boxplots in a chart [closed]

Can someone explain what these horizontal lines ( sort of boxplot?) against each condition represent? How is 1 a reference point? Thank you!
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11 views

How to organize raw data and derived statistics into appropriate data structures?

Let's assume I have conducted an experiment in which I am assessing the effects of some variables on a number of quantities. If, for instance, I am collecting information about a route between two ...
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3answers
100 views

How best to present paired Wilcoxon test [duplicate]

I created a survey to find out if people spent more time in their gardens in 2020 when compared to 2019. I did a paired sample Wilcoxon test to compare the two and found a significant difference but ...
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15 views

What plot should I use? (glm predicted vs actual)

I have made a linear regression model (using the glm function) to predict the number of medals a country will win based on GDP. I have the data for the actual number of medals won. I can't seem to ...
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1answer
40 views

How to plot a box plot that accounts for the effect of another factor?

I am analyzing the effect of sampling month (5 different months), sampling time (day/night) and sampling location (5 different sites) on the effect of species richness using a linear model in R. All ...
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1answer
25 views

Name of statistical animated visualization

What is the name of the kind of animatrd graph that show a development over a period of time - and the vertical bars change length and order. Fx country on y-axis, no of COVID-19 cases on x-axis, and ...
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16 views

How best to display skewed frequency data?

I am counting the number of eggs laid each day by some animals. Most days under my experimental conditions, individuals produce 0 eggs (194/307 observations). I do not want to leave these 0 days out ...
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19 views

Is there an MDS/embedding algorithm that is more suitable to the goal of clustering a graph

I am testing ideas on clustering a particular graph. After testing a set of graph clustering/community detection algorithms I thought about mapping the graph to a vector space and using vector space ...
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9 views

auto arima gives- inf results on dynamic graph, what should I do?

I am new in modelling timeseries using ARIMA Here I have a dynamic graph, of different times, in each snapshot of the graph i calculate the Adamic Adar similarity index, then I use each output as ...
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1answer
35 views

Visualise clusters and relationship with features; alternative to chord diagram

I've done some clustering, and now I want to visualise the relationships with some features. Ideally I want to create a chord diagram like the image below (source): The chord graph basically shows ...
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19 views

Discriminant analysis with only one independent variables in R

I have one categorical variable with 12 classes (t) and one independent continuous variable (x1). One of the classes of the categorical variable is the reference class. I want to apply discriminant ...
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R: lmer plot_model gives a “non-numeric binary operator” error

I am trying to plot the predictions for a linear mixed-effects model. The script worked well with glmer models but for some reason it gives me an error when trying to add additional features. The ...
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50 views

PCA when missing data are meaningful

I'd like to use Principal Components Analysis, or some other dimension reduction technique, to help visualise relationships in a multidimensional dataset. However, the dataset has missing values. I ...
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14 views

Can duplication of information be an acceptable practice when dealing with multi-level data visualisations?

In general, duplication of information without a justified reason is not considered good scientific practice. However, when it comes to representing a dataset in which there are several independent ...
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24 views

R: visualizing regression lines while controlling for covariates

I am working with R, where I have a linear regression model specified in the following way: mod = lm (data = dat, test_score ~ age + comprehension_score + IQ_score) ...
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5 views

Visualization of mclust ellipsoids

I am using Mclust in R on three-dimensional data to derive a number of clusters. I use defaults and select what is proposed my max BIC (in my case a 7-cluster solution with EVE structure). I would ...
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19 views

Visualizing distribution of sample proportions that takes into account of the sample proportion uncertainties

I have calculated several sample proportions in my dataset that stem from an unknown population distribution - likely a beta mixture. I would like to perform some exploratory analysis to visualize the ...
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1answer
22 views

Visualizing shared instances of p-values<alpha across large numbers of treatments

Assume a data table that presents the p-values of a large number of independent runs of a statistical hypothesis test. Each run represents a single test with two possible hypotheses (i.e., null and ...
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12 views

Reverse Cumulative Frequency explanation

I've been seeing a lot of Reverse Cumulative Frequency (RCMF) plots lately and trying to figure out how to understand the way reverse cumulative frequencies are calculated, and the interpretation of ...
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23 views

Graph of model predictions vs observed data when testing a hypothesis

I have used mixed models to test a hypothesis and have checked residuals for normality. I was planning to graph the observed data and present it with model outputs (coefficients, p-values). However, ...
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1answer
20 views

Bar and line graphs overlaying on same figure, containing groups, and by another group [closed]

I am attempting to create a figure that essentially has a bar graph corresponding to one group and a line graph for another group, but where there are two groups within each of the formerly described ...
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30 views

Unable to plot obtain realizations of Gamma distribution variant

I have the probability density function (pdf) for $\sigma^2 = 1/\phi$, where $\phi\sim \text{Gamma}(a, b)$. I am trying to simulate 1000 realizations of $\phi$ and then plot a histogram using the pdf ...
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24 views

2d data statistical significance

In my multiclass classification problem, I have several clusters that intersect with each other on a 2d graph (formed after dimensional reduction using linear discriminant analysis). What statistical ...
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15 views

Interactive plot of Region in Economic Model

So let's say I have the following framework. Let $s_1 \sim N(\mu_1,\sigma_1)$ and $s_2 \sim N(\mu_2,\sigma_2)$. Denote by $f_i$ and $F_i$ their pdf and pdf respectively. Define the following two ...
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16 views

What you would call this type of table/graphic?

For some risk analysis, I am trying to replicate a graphic/table that was originally made in Tableau - it represents several different risk categories as circles within the relevant risk likelihood ...
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38 views

How to visualise Anomaly Features

I am using an Isolation Forest Model to detect tabular data anomalies, as such, I have used shap values to identify the particular features that contribute to each anomaly. Now I would like to ...

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