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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5 votes
3 answers
511 views

Alternatives to scatterplot for visualisation for large samples

I would like to visualise the following scatterplot in a different way that would make it more intuitive. The X axis is trading frequency and describes how many trades were conducted whereas the Yaxis ...
1 vote
1 answer
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Plotting ideas for large number of unique catagories

I have 209 unique categories within a column, is there a nice way to plot it ? I am grouping the 209 unique categories with their respective cost column. How should I represent it visually ? Below ...
1 vote
1 answer
48 views

How to interpret the minimum spanning tree in a fully-connected graph?

Can someone explain how the resulting graph is the minimum spanning tree (MST) from the fully-connected undirected graph? I don't understand how this is interpreted in this context. Definition ...
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2 votes
1 answer
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How to represent the interval or uncertainty on regression predictions in an 'experimental vs predicted' plot?

Using an example similar to the one from R predict, simulate some independent variable ($x$) data, map them to an observed ...
2 votes
0 answers
15 views

Best visualisation for user-rated skills [closed]

I have a mobile app for soccer games where user can rate each other and mention particular skills for each player. For example, after a match we ask each user to rate every other user and optionally ...
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0 votes
0 answers
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Geopandas map projection upside down [migrated]

I'm trying to create a choropleth map of the US counties using Geopandas, but for some reason, the map is plotting upside down. I'm guessing it has something to do with the projection embedded in the ...
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0 votes
0 answers
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How to standardize data to compare

I have two datasets, A and B. A has 100 users, B has 1000 users. A's score is 5 while B's is 1 since B has more users that lower the score. How can we standardize those two to compare? Breakeven? ...
0 votes
0 answers
51 views

Embedded minimum spanning trees for visualizing effects of dimensionality reduction?

Gist Construct a minimum spanning tree (MST) of the data, perform a dimensionality reduction procedure, and plot the embedding MST to study a "skeleton" of the transformed data. Mathematical ...
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0 votes
0 answers
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Violin plot in R, each column a violin, split by gender [migrated]

I have a data structure where each row represents an individual, and each column represents something about that individual. I want to plot multiple violins in a single violin plot, where each violin ...
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2 votes
0 answers
30 views

Meta-analysis with rma() in metafor

I am working on a meta-analysis that has two moderator variables. Below is the code that I've figured out, but I'm not sure how to get the forest plot to show the overall model estimate. It's ...
1 vote
0 answers
24 views

I need help interpreting MCA plots and data for a large language research project

I posted on the site a few days ago about my research and got some good advice from several users who suggested that an MCA was the most appropriate way to analyze my data (thank you btw!). I have ...
1 vote
1 answer
34 views

Log scale on two axis vs 1 vs none

I would appreciate some advice on the most appropriate way of displaying the behaviour between two variables: # of subscribers in the first month and # activity (combination of actions) I'm not sure ...
1 vote
1 answer
22 views

Plot depicting for which years I have data available [closed]

I have population abundance data for various years (within three different locations): Location X1950 X1951 X1952 X1953 X1954 X1955 Wreck Island NA 5 9 NA 6 8 Heron Island 17 22 29 32 NA 90 ...
0 votes
0 answers
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When one out of two moderators is non-significant in an additive moderation model, does it make sense to keep it? [duplicate]

based on a within-subjects design I am looking at the effect of three different products (X) shown to each participant and their product perceptions (Y) while controlling for two moderators ...
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0 answers
20 views

Need a dataset for VAR Model [closed]

I would like to ask if someone can help me to download a dataset to use for a Var model with at least 3 variables. Thanks in advance!
0 votes
2 answers
39 views

What is a good way of visualising numeric query results? [closed]

Suppose that I have a query with $N$ questions each of which have $M$ numeric answer options. Thus, there are $N \times M$ possible answers available. I have a data set of answers to this query, and I ...
0 votes
0 answers
8 views

Transparancy of residuals on Schoenfeld plots in Cox survival analysis

I have large dataset and therefore the many datapoints on my Schoenfeld plots make it messy and congested. I know that I can use resid = FALSE to remove the ...
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3 votes
2 answers
82 views

A type of graph that combines a timeline chart and a bar chart

I'm trying to plot a collection of items where each item has an x-range, and a y-value. The below variation of a bar chart is what I had in mind, but I can't find a software tool that appears designed ...
1 vote
0 answers
26 views

Confidence region of the predicted value in multiple regression that involves categorical predictors (plot)

I'm wondering how can I plot the confidence region of the predicted value in multiple regression that involves categorical predictors, using either R/Stata. I've read about predicting using the main ...
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2 votes
1 answer
34 views

Estimating the percentage of a specific factor being related to a condition

I am working on a medical research project where I am trying to find the associations between specific maternal factors and neonatal limb ischemia (NLI) to declare the maternal factors as "risk ...
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0 votes
0 answers
33 views

Discrepancy between ggsurvplot predicted survival curves and raw data

I'm using a Cox proportional hazards model to look at the relationship between coyote survival and various environmental factors. The model summary indicates that the proportion of natural habitat has ...
1 vote
1 answer
45 views

Algorithm for detecting collective outliers

What algorithm should I go for if I want to determine collective outliers within a dataset? By collective outliers, I mean a series of data points differ significantly from the trends in the rest of ...
0 votes
0 answers
10 views

What is the best way to visualize historical product stocks across 10s of shops in corolation with demand?

Imagine we have the following problem, we have 50 different shops, each sell 6 of our items. at the beginning of the month we ship more of those items to the shops based on last month's demand. ...
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0 votes
0 answers
27 views

What does do 'Graph Convolution' in 'Point GCN' architecture based on Graph CNN

I am reading various research papers to understand the methods which takes Point cloud and convert into machine learning readable data for various purpose such as classification. I have one question ...
2 votes
0 answers
56 views

Different prediction plot from visreg versus ggplot(Predict())

The problem: I am hoping to visualise interaction effects between a continuous and a dichotomous variable from a cox proportional hazard regression. When graphing this with different packages (visreg ...
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0 votes
1 answer
29 views

How should I best visualize my survey data?

I've conducted a Likert-style survey with $45$ questions in which $15$ people participated. Each question was repeated six times, so I have six answers from every participant for every question. All ...
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3 votes
1 answer
183 views

Are coordinates (e.g. Point(123, -123)) considered interval data?

I understand that latitude and longitude are interval data, but are coordinates (e.g. Point(123, -123)) also considered interval data? If so, how can the standard deviation, mean etc. be calculated?
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1 vote
2 answers
79 views

How to plot interaction term in logistic regression in R

I'm working on the logistic regression with interaction term between gender and education years as below. gender is a factor varibale with two value and eduyears2 is a numeric variable. and the ...
0 votes
0 answers
21 views

Comparing percentages when the group sum is not 100

Wondering if my method here for coding qualitative research data is valid. My raw data looks like this: Contains apples Contains bananas Contains pears Cart 1 x Cart 2 x Cart 3 x x Cart 4 x x ...
0 votes
0 answers
29 views

Help with interpreting a q-q plot [duplicate]

This is the q-q plot I got when testing residuals for Normality in a simple regression. Would you say that residuals are normally distributed or not? Should the data be transformed? I would say that ...
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1 vote
1 answer
37 views

Visualization of a linear mixed effect models, with two conimuous fixed effects and a random effect with random slope and intercept

I have more of a stats question regarding mixed models. Here is an example of a mixed model: salary~years_experience+(years_experience|department) Salarary is the salary of university faculty based ...
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0 votes
0 answers
33 views

Visualize average asset condition over time

I have 3300 road inspection records summarized in a SQL query: ...
3 votes
3 answers
153 views

How can we visualize multiple regression with 3 or more continuous variables or with categorical variables

I'm trying to understand multiple regression visually. So far I understand that when you have two continuous variables explaining y, this will take the shape of a plane (see the image). What happens ...
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0 votes
0 answers
22 views

Appropriate technique for grouping objects with multiple ratings each?

I've got a questionnaire in which I'm asking participants to rate 17 countries on eight different rating scales each (scale 1-7). I'm now interested in finding out which countries are similar to each ...
1 vote
1 answer
37 views

Arima or Sarima model parameters

Given daily ticket data from feb 2022 to July 30 2022, I am trying to forecast tickets received. I am unsure on which model to use (Arima, Sarima,SSE) based on my data. I have attached a picture of ...
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7 votes
2 answers
633 views

Is a boxplot useful, when it doesn't even look like a box?

I want to visualize some data with a boxplot -- and I am wondering, if the boxplot is even the correct way for visualizing the data. I want to compare three datasets (40 entries each) using boxplots. ...
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2 votes
1 answer
84 views

how to interpret the cumulative incidence plot stratifying in two groups

I would like to interpret the cumulative incidence plot in blow. Red line shows cancer and black line noncancers. Event is ability decline. Is it correct to say that the risk of ability decline in ...
1 vote
1 answer
43 views

What can cause training and validation graphs to look like this?

I know the basics of machine learning from Andrew Ng's course, but I'm quite new to the practice with tensorflow. I'm creating a model with 12288 nodes in the input layer, 100 in the hidden, and 2 in ...
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23 votes
5 answers
2k views

How should we do boxplots with small samples?

This question is inspired by this posting, plus a comment by @StephanKolassa and an answer by @dipetkov who point out that the boxplots presented in that question are misleading. As is pointed out, ...
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1 vote
1 answer
48 views

Elbow Plot Generated for Clustering

This is the elbow plot result I obtained from R. It looks quite unusual compared to the ones I have seen, so your insights will be appreciated. Referring to the attached image, it can be seen that ...
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0 votes
0 answers
104 views

How should I report logistic regression on a poster?

An example of my odds ratio bar chart: I am developing a poster that reports on a research project I've been working on this summer. For the project, I ran a logistic regression with 1 continuous ...
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1 vote
1 answer
50 views

What is the best plot I can do to understand true values vs errors in prediction in a regression problem?

I am facing a regression problem and I would like to understand how my errors distrubuite along the true values I have. For the moment, I have done this scatterplot: but I want a plot that directly ...
0 votes
1 answer
31 views

Which tool is more suitable for visualizing the distribution of multiple real and synthetic image datasets, t-SNE or PCA?

I am doing a thesis on the generation of synthetic data for training a deep learning model and evaluating it on real data. I have a few different real datasets, and I generated multiple synthetic ...
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7 votes
4 answers
1k views

Visualize a continuous variable against a binary variable

I want to visualize a continuous variable, BMI index, against a binary variable, heart disease. I want to check by visualization ...
1 vote
1 answer
154 views

Interpreting output from glmer Model in R including odds ratios and /or plotting data?

maybe someone could help me with interpreting my Output from the glmer Model in R? In general I would use the Odds Ratio for interpretation- am I right? However, since it is below 1 I am not sure how ...
0 votes
1 answer
40 views

Visualization for univariate binary logistic regression with a categorical independent variable

I am performing a univariate logistic regression where the outcome is obviously 0 or 1, and the independent variable has 18 different levels. I am looking for a way to graph the results of this ...
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0 votes
0 answers
23 views

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 ...
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4 votes
1 answer
88 views

How should I visualize my data?

I've conducted a survey of 20 questions using a 5-item Likert scale in which 10 people participated. In each question, the participants were presented with two versions of a picture and asked to pick ...
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1 vote
1 answer
32 views

IQR range in boxplot

I'm having a look at altair docs, and I don't understand why, in the last two groups (85 and 90), that have a very low IQR, they have similar whiskers than in the first group, where the IQR of the ...
4 votes
2 answers
202 views

Summarising and Visualising three attributes in R

I am trying to summarise and visualise three attributes in R: Patient_Age, Patient_Deprivation and Hospital_Time. I am trying to summarise the time patients spent in hospital by deprivation(scale 1-5) ...

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