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.)

Filter by
Sorted by
Tagged with
0
votes
0answers
8 views

Empty node in Graphviz/Pydotplus visualization of decision tree [closed]

I'm trying to visualize a simple decision tree of depth 3 that's fitted to the Titanic dataset. Here's my code: ...
0
votes
1answer
53 views

Why do we always illustrate and depict the Loss Functions of Neural Networks as Non-Convex?

Why do we always illustrate and depict the Loss Functions of Neural Networks as Non-Convex? By doing a quick Google Images Search of "Loss Functions for Neural Networks" - we are generally ...
0
votes
1answer
39 views

Is there a way to think about conditional vs unconditional heteroskedasticity graphically?

I find I understand concepts much better with the aid of charts/visualizations. I'm struggling to intuitively understand how one would be able to see whether error terms are correlated or not to the ...
1
vote
1answer
21 views

How to read the following table of data?

I have downloaded the following table from https://www.ons.gov.uk for car rental market. Does Turnover (£000s) mean the the values should be multiplied by 1000? I.e....
2
votes
1answer
33 views

How to interpret schoenfield residual plot

I used the veteran database of the package "survival" to do survival analysis. I tried to check the proportional hazard assumption, with with schoenfied residual plot. I always thought if we ...
0
votes
0answers
12 views

Machine learning and overforecasting [closed]

I just wanted to get some information about overforecasting and despite googling the term I wasn't able to get much information about it. Could someone let me know about it? and probably ways to ...
0
votes
0answers
14 views

Exponentially distributed bins for viewing and analysing the tails of a histogram

Is there a rule for visualising and analysing density estimates of heavy tailed observations on a log-log scale? For example, equispaced bins and exponentially distributed bins: ...
0
votes
0answers
11 views

Large confidence bands for inhomogeneous Poisson process model

Forgive me if this question falls under StackOverflow's domain, but I cannot tell if the issue is programming (R) or statistics based (happy to relocate post if need be). I am graphing an interaction ...
0
votes
0answers
23 views

Looking at this graph would you say there is no correlation between these two variables?

I am trying to figure out if there is a correlation between Military Enlistment and the number of U.S. War Films Released between 1980-2021? This is a graph I made in Tableau for data for the ...
0
votes
0answers
5 views

Looking for a measure and a graphical representation of sign correlation between two variables?

I have two variables whose signs are of interest. Basically, when one is positive (negative), we should expect the other to be positive (negative). Empirically, it appears that this is not always the ...
0
votes
0answers
17 views

How can I visualize and receive data about time overlap of several actions?

I am observing a person walking, running, and yo-yoing and want to know how much time a person spends yo-yoing while they walk. Calculating total time spent doing each activity is relatively easy (...
0
votes
0answers
10 views

How to draw a graph with the following fault and failure data?

a) Draw a graph representing the above data. The graph should include the curves derived from the data, and all labels and legends as needed, and should be sufficiently accurate to enable you to ...
0
votes
0answers
4 views

Am I right that qgraph node location is related to association but not perfectly so?

When plotting a network with qgraph and using layout = "spring", I understand that the function will work to have relatively related nodes close to each ...
1
vote
1answer
36 views

Radar Chart Alternatives for Two Variables

I am creating a customizable analysis in which a requested feature is a radar chart, which I have been powering using Plotly in Javascript. My issue is that I must now be able to output a Radar chart (...
0
votes
0answers
15 views

Histogram where the bin heights take values into account

In a regular histogram the bin heights reflect the density of observations/data within them. Therefore, the areas of the bins on the chart reflect the quantity of observations they cover. They are for ...
0
votes
0answers
35 views

Why are predictions from beta regression and linear regression identical?

I'm utilizing a beta regression to predict the relationship between x and y, since y is a proportion variable confined within the interval [0,1] but has no values of either 0 or 1. Outcomes on y only ...
0
votes
0answers
10 views

Producing a plot in R showing change of survey results between two time periods?

I need to produce a plot that shows change in survey results between two time periods, very much like the image shown below. I don't even know what these plots are called to find out myself; searching ...
0
votes
1answer
17 views

emmip() - what does the y-axis represent when an offset was included

I used emmip() to create a graph showing an interaction-style plot. In the model (GLMM, poisson distribution) that I fed into the graph the dependent variable (number of visits, count) was adjusted by ...
2
votes
1answer
152 views

What's the recommended way to visualise the result of a binary logistic regression with a continuous predictor variable, in R?

The other variables are categorical and I've used bar plots for them, but would like your opinions on how to visualise the results for a continuous variable, from a binary regression
1
vote
0answers
16 views

Plot multiple lines in transparent gray such that overlapping parts are darker [closed]

Unfortunately I cannot remember where I saw it, so I cannot provide a picture of how the plot should look like. I can just describe it: Do you know a way in MATLAB or R to plot multiple time series in ...
0
votes
0answers
28 views

Is there a way to plot multivariate multiple linear regression results?

I run a Multivariate Multiple Linear Regression with 5 predictors (X1..X5) and 5 dependent variables (Y1..Y5) by using SPSS. I was wandering which is (if there is) the best way to plot the contributes ...
1
vote
1answer
45 views

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 ...
2
votes
2answers
125 views

Methods to extract signal from three very noisy time series of same event

I have three time series of same length, all containing magnitude measurements of the same event "A". But each time series is using a different method of measurement. My goal is to merge the ...
2
votes
1answer
42 views

visualizing repeated measure longitudinal discrete outcome

This may be a repeat of some questions asked here before, I apologize in advance if thats the case. At at rate, here's my question. I am dealing with a binary outcome, wheezing=Yes or wheezing=No, ...
0
votes
0answers
9 views

Comparing the distribution of large amounts of data

I am comparing multiple estimation methods and I am trying to understand if one of them is consistently under or over estimating. My approach would be to do a violin plot over the signed errors to ...
5
votes
1answer
511 views

Visual Demonstration of Residual Confounding

To drive home the point that dichotomizing a continuous confounder creates problems of residual confounding in regression analyses, I'm wondering if there are any available visual demonstrations (not ...
0
votes
0answers
25 views

Why my validation accuracy is higher than my train accuracy after augmentation?

I'm using a text dataset of 10158 instances where I convert each instance into sentence embedding before training also I'm using different augmentation techniques but there is this one specific ...
3
votes
1answer
206 views

Generating "Random" Datasets with Statistical Patterns

Does anyone know if there any packages in common statistical computing software (e.g. R) that have the ability to simulate realistic random data with statistical patterns? It's quite straightforward ...
2
votes
1answer
64 views

What is the most reliable way to visualize the mixed model?

this may be a beginner’s question, but any help is appreciated! First, how to interpret the interaction between continuous variables? Such as WORD_LENGTH_SCALE:Freq_SCALE and WORD_LENGTH_SCALE:...
0
votes
0answers
6 views

Method to find optimal settings given an output metric

I am trying to optimize a screening problem that is usual done through brute force. I am trying to expand my skill set but I don't know where to start. I have built a visualization tool that helps ...
0
votes
0answers
20 views

How to display error on a 2d median

Below is a 2d scatter plot where the large green dot is the median of the data in x and y. My question is about whether there is a convention for showing the error on the median. As shown, each of the ...
0
votes
1answer
30 views

y-axis values in plot(gam)

I have used mgcv to fit a simple gam with a negative binomial distribution. My model looks at how animal abundance changes with distance to a feature, and looks like this: ...
0
votes
0answers
14 views

Model diagnostic plots [duplicate]

i have built a predictive model and these are the model diagnostic. How do i interpret them? it looks like the model is linear based on the residuals vs fitted plot. but what about others?
2
votes
0answers
20 views

Binned continuous x axis and stacked probability bars on y axis - does this plot have a name?

After reading a question about binned continuous x axis and stacked probability bars on y axis I am wondering whether this plot has a name. Here is an example: What this plot shows: We see how the ...
0
votes
0answers
19 views

Best way to visualize the results from a glmm with count data

I am trying to analyze a dataset of counts of plants from multiple different sites. Each site has a treatment group and a control group, and each site was counted once before treatment and once after ...
0
votes
0answers
25 views

How to visualize data that is one-token per row

My data is organized in two columns, "article" and "ethnicity". Article is binomial, having only two possibilities ("a" or "an"), whereas Ethnicity can be ...
0
votes
0answers
37 views

1961 3D Radar Chart = How is this replicated today?

Harvard Anthropologists in the late 1950s studied 5 different communities and created a theory that became the cornerstone of anthropological studies in worldview. They displayed their survey results ...
1
vote
0answers
13 views

Interpretting overlapping histogram

I obtained the following histogram when performing data analysis. This histogram refers to the duration of cab trips in the NYC taxi dataset. The histogram clearly shows two overlapping populations ...
0
votes
0answers
24 views

Linear mixed models natural splines plotting regression

Eventually I want to use joint modeling. For this, I need to fit a linear mixed model on the biomarker trajectory, with a random slope and intercept for study ID. I want to use natural splines with ...
1
vote
1answer
13 views

Two basic questions about icp (iterative closest point) algorithm

I am trying to learn shape analysis and a part is learning icp. I have many confusions but for now I have two basic questions: Does the point clouds need to have the same number of points for icp? ...
0
votes
0answers
9 views

Visualize in what area there there are the most matches, how to do it in an easy to understand way?

So I have a dataset that I have a hard time visualizing. The main idea is this: I have developed a specific algorithm that finds vulnerabilities in permutation boxes used in block ciphers. What I have ...
0
votes
0answers
13 views

What type of Chart is best to display for which of the 2 Data effects the Spread more at a given point?

For 2 Variables of Data, i have taken a Spread between them. Spread = Data A - Data B. I want to display inside of a Chart, Which Data has more of an Effect when the Spread changes. For Example, if ...
2
votes
2answers
54 views

Displaying nominal data with a line graph

Recently I stumbled across a line graph displaying a contingency table which I found was a very powerfull visualization. In my opinion it is very seldom that nominal data is displayed this way; ...
0
votes
0answers
8 views

IRF of Structural VAR equal to Standar VAR?

I´m doing a traditional Phillips curve approach with a VAR model, in particular, I used the methodology of Blanchar and Quah (1989) to obtain the structural VAR, but when comparing the IRF graph of ...
1
vote
1answer
43 views

SAS: Flat line forecast ARIMA model?

I'm trying to forecast a large dataset using ARIMA (The data does not have seasonality), I ended up getting an ARIMA(2,1,2) model where the log of volume was taken due to increase in variance over ...
0
votes
0answers
43 views

Diagnostic probability plots in logistic regression

There is some discussion on StackExchange about diagnostic plots for logistic regression, but all are focusing on "residuals", for which there is not even a consensus how to define them for ...
1
vote
1answer
58 views

Weibull plot to assess goodness of fit

I would like show whether my data fit a Weibull distribution. What kinds of graph should I plot? Is the following graph appropriate one and what is this called? How can I plot it in R?
0
votes
0answers
8 views

Training a graph neural network to simulate breadth first search

I currently have constructed a Graph Neural Network in PyTorch with graph convolutional layers. I am trying to train the neural network to simulate a breadth-first-search algorithm. Previously, I have ...
0
votes
0answers
32 views

Absolute difference between two groups in percentage

This is probably a trivial question, but how can I best calculate/visualize the absolute difference in a value between two groups? Imagine I have 2 groups (A and B), for which I have several 'traits'. ...

1
2 3 4 5
57