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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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How to visualize proximity score in Random Forests

For a Random Forest, we can construct a N x N (where N is the number of data points) proximity matrix ...
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9 views

What are the confidene intervals when plotting the forecast function in R?

So I have forecasted with the 'forecast' function in Rob Hyndman's "Forecast" package using R. But when plotting it I am in doubt what the blue and grey area in the graph means. I assume that the blue ...
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1answer
27 views

How can I visualize and correctly interpret the multi-output of a random forest regression?

I have multiple inputs and multiple outputs for a model I am trying to build using SkiLearn's Random Forest Regression in Python. I have imputed the missing data, divided the columns where the Ys ...
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3answers
45 views

Python: “Normalizing” kde, so it always lines up with histogram

In Python, I am attempting to find a way to plot/rescale kde's so that they match up with the histograms of the data that they are fitted to: The above is a nice example of what I am going for, but ...
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0answers
3 views

Determining Level of Effectiveness of a Program Implemented by the Local Government Unit [on hold]

What is the most ideal figure to use for a qualitative research if you're finding the level of effectiveness of a program? Thank you for answering! God bless!
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11 views

Finding best kernel parameters in support vector machines

I am following this tutorial: https://www.analyticsvidhya.com/blog/2017/09/understaing-support-vector-machine-example-code/ , proposing an application of support vector machine to the well known Iris ...
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0answers
22 views

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 ...
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3answers
35 views

How can we plot the predictions of logistic regression model in order to see whether it is good?

I am working on a basic problem that requires developing a logistic regression model (the output is True/False, whether a person gets cancer). I have used glm() in R and got the model with some ...
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1answer
20 views

Positioning multivariate data in a 2-dimensional space (with PCA)

I have multidimensional data. (11 columns - attributes , 150K rows - number of data). It is slightly sparse-alike data, for example, which means one datum has numeric values like (0, 0, 6.5, 0, 0, 7.5,...
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0answers
11 views

What can I use to create an infographic using data to scale? [closed]

Very simply, what can be used to make images like these? I want to create a very similar infographic with data that needs to scaled i.e. I can't use PowerPoint or something for this because the points ...
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1answer
47 views

Jaccard Similarity with Binary Data

I have 5400 rows of data and 3211 columns of attributes. The first 4 columns are ID/Name/ParentID/ObjectType - the rest of the 3207 columns are the attributes that are to be used for similarity ...
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Q. Differences between 2 groups, randomly assigned to either a Control or Experimental group, testing the same variables [closed]

2 fluency groups (String): Monolinguals (Nominal) or Bilinguals (Nominal) in both groups each participant is randomly assigned to either an (String): Explicit control group (Nominal) or an Implicit ...
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1answer
71 views

Interpretation of standardized (z-score rescaled) linear model coefficients

I have analyzed some data on vegetation change as a function of change in soil parameters. I compared a dataset from 2001 with a dataset from 2018 (fully balanced). To investigate the change in ...
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1answer
15 views

Visualize cross over interaction logistic regression categorical variable in R

I have performed a logistic regression with the following variables: X: Categorical with three levels (St, An, Int) M: Moderator, which has two levels (Mob,Desk) Y: Dichotomous dependent variable (0/...
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1answer
47 views

When to stack histograms?

I'm working on a personal data analysis project, and I'm comparing the frequency count of survivors of a particular natural disaster, between males and females. I want to use these histogram(s) to ...
2
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1answer
34 views

Descriptive text from non-standard quantile plot [closed]

I don't think this type of plot has a name, but as the legend shows, the shades of gray represents the quantile distribution of repeated temperature measurements, taken on the same calendar day over ...
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0answers
7 views

How to represent a 2D start-point end-point data in a plot?

I have multiple particles located on a grid in the x-y plane. After running some simulation, I get the final positions of the particles in the X-Y plane. So say there are $N$ particles and I want to ...
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10 views

Compare and visualization of multiple output data files

I have 100 data files corresponding to 100 samples. For these 100 data files, I have processed data in 4 different ways to generate result output files. Out of the 4 results files per sample, I ...
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0answers
28 views

Methods to classify observed data into states

Given a time series (that sometimes unpredictably alternates between random and non-random and is not stationary). What mathematical methods are there to classify the observed set of data into ...
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0answers
40 views

Data exploration methods for noisy time series

I have time series data from NanoPore sequencing (Attached is a illustrative figure and short explanation) which I'd ultimately like to use in order to find various methylation patterns in the input ...
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2answers
24 views

How to compare two classifications, visually?

I have two classifiers, and I was asked (for learning purposes) to compare their predictions, visually. The target value is a real value (sentiment) What could be a good way to compare them?
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1answer
58 views

Visualising a table of proportions

I have a table like ...
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1answer
20 views

I have two groups of data with (the same) two variables each, how can I plot these groups against eachother?

Please bare with me, I am very new to statistics. I have two data groups (Location A and Location B), at both locations I recorded two variables (Noise and Activity), I am trying to find out how I ...
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0answers
23 views

Scatter plot and mathematical analysis

I gathered data and with the results created a scatter plot, however, the only analysis I have done is just by analysing the graph without showing any mathematical terms. Is it possible to analyse ...
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0answers
19 views

partial plots or added variable plots

Suppose we have the following regression model: y = b0 + b1*X1 + b2*X2 + error1 (1) The partial regression plot or added variable plot of x1 is (i.m.h.o.) constructed as follows: regress y on ...
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1answer
20 views

Is the resulting function of plotting two variables imply that all other factors are being held constant?

Say, for instance, I plot two relationships (separately): (a) Share of income spent on food vs. household income; and (b) No. of houses in a unit vs. population of a city Then, for both (a) and (b),...
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1answer
40 views

linear mixed model: visualising fixed effect and interaction with continuous variable (with confidence interval)

My aim is to analyse the blood concentration of a biomarker and its annual increase in four different subject groups using longitudinal measurements, i.e. biomarker concentrations of each subject were ...
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1answer
15 views

Intuition / motivation for 2 “measure” values on a bullet chart

I am trying to understand a bit more about the statistical intuition behind bullet charts. This one in particular has two "measure" readouts, one is dark blue one is light blue: For clarity, the gray ...
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2answers
120 views

What does the distribution of bootstrapped values in this Cullen and Frey Graph tell me?

I am trying to find a suitable distribution to describe my data, and as one of the first few steps I created a Cullen and Frey Graph using the descdist command from ...
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0answers
31 views

Proof without words (about statistics or probability)

Are there any well known proofs without words about statistical theorems like for example the CLT, LLN, or the Gauss-Markov theorem? There are many about mathematics in general (e.g. here, or here), ...
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1answer
22 views

Visualizing 2D data when one dimension is discrete and the other continuous

I have some (synthetic) stochastic data generated from a model with two parameters (e.g., I'm generating many numbers from a negative binomial distribution with parameters $n$ and $p$ --- that's close ...
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1answer
24 views

“Orthogonal” or “mutually exclusive” coloring for a plot

I have a bar graph where the bars are colored according to chemical composition: Say atoms A, B, and C are interesting. I am currently mapping (A,B,C) composition, normalized, to (R,G,B) color as way ...
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0answers
13 views

Automatic selection of plot bounds for Normal pdfs in a combined chart

Suppose an app's user specifies several Normal priors by setting the mean and variance for each. I'd like to display a combined plot with the prior pdfs, like that on the figure. . Q: What is a good ...
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1answer
29 views

Fitting a logarithmic trendline on already logged values

This is the situation. I am running trials with a population simulator, which produces various outputs (y), with the variance of these outputs being dependent on the number of clones (x) (recursions) ...
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0answers
11 views

Visualise: Interactions with Two Categorical Variables controlled for a continous variable

What is the best way to visualise an interaction between two categorial variables controlled for a third continous variable. e.g. ...
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0answers
17 views

Wilkinson dot plots

I came across a paper by Leland Wilkinson describing how to create dot plots, aptly named dot plots [1]. However, there were several things about the maths and algorithm that seemed wrong to me. I was ...
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0answers
21 views

Assessing how a variable changes over time

I have a data set which includes the week number so 1,2,...,53 and then for each observation is a value for a variable, let's suppose it's distance travelled. I'm looking for methods I can use to ...
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0answers
18 views

Prediction Challenge AI. Machine learning and data analysis.(Inconsistency data)

I am working on a personal rento in which based on some input data I have to predict some output data. The challenge is to predict the expenses in transactions, receipts and cards that users will have ...
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0answers
22 views

What is the meaning of “extremity of values for regression” when using sklearn.tree.export_graphviz?

I'm using sklearn.ensemble.RandomForestRegressor, and I would like to show the decision tree of one estimator using sklearn.tree.export_graphviz, but I don't understand what the meaning of extremity ...
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1answer
23 views

Plot Scaling Problem

I am trying to implement the following code in R $\theta \sim Beta(a=1,b=1)$ $x|\theta \sim Bin(N=5,\theta)$ $\theta|x \sim Beta(a+\sum x_{i},b+\sum N-\sum x_{i})$ ...
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1answer
46 views

proper way to scale and plot data points on top of each other

I hope this is the right place that I am posting this question. If not please feel free to comment so that I find the right place. I have 4 sets of points that represent points on hexagons. My data ...
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2answers
22 views

How to visualize movie trailer views pre and post movie release?

I want to visualize how view counts on movie trailers (e.g. on Youtube) evolve over time. Specifically, I want to see whether the rate of views increases or decreases following the release of the ...
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1answer
43 views

The most appropriate model for dataset [closed]

For example, we have a dataset, and we want to find best representative hyperplane for this dataset. In other words, we aim to perform regression operation. This hyperplane can be in linear, ...
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0answers
6 views

Confused by Cook's Linear Related Predictors

Chapter 19 of Cook and Weisberg's Applied Regression book is entitled "Visualizing Regression with Multiple Predictors" and discusses when diagnostic plots are valid. They say "we need conditions on ...
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1answer
27 views

What are some simple and fast data visualization-tools?

I'm buying an apartment. Being me I started by scarping all sales prices from the last 2 years. Now I'm looking for a tool to quickly play around with and get a feel for the data. Its about 90000 ...
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0answers
48 views

R - Visualize results t-test in line plot

How can I visualize which values of each group are significantly different from each other in one plot? Consider the following mock example: I have data on variable ...
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0answers
10 views

How do i select the attribute from the correlation and covariance metrics?

I have a values from heatmap which is contain correlation and covarian. for the correlation values, i got with this code : ...
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2answers
73 views
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1answer
35 views

Displaying high dimensional box plots

If several box plots are to be displayed on a graphic where the X-axis represents a unique level, but one which is continuous (like per-year over a very long study) is there a well known way to ...