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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2 views

Using single line chart with multiple, unrelated, data sets?

I would like to visualize two unrelated sets of data using a single line chart to check for any "correlation" (it's just for fun - nothing that claims to be statistically accurate). Just as an ...
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0answers
6 views

Graph showing the first stage effect

I am using a 2SLS approach in order to estiamte the effect from increased education. I want to show the effects of the first stage graphically, ie I want to show that the instrument affects schooling ...
0
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0answers
40 views

Difficulty plotting regression in R

I am trying to plot a regression using plot() and keep getting the error message "Error in xy.coords(x, y, xlabel, ylabel, log) : 'x' and 'y' lengths differ". ...
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0answers
54 views

Assessing the need for random effects terms

During the model selection phase for mixed models, there are typically several possibilities to choose from; in fact, the number of possibilities is increasing in the number of covariates used. How ...
3
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1answer
57 views

How to use the kernel trick on data that can't be visualized

I'm reviewing the kernel trick and there are a lot of toy examples of how a 2D classification which can't usually be separated by a linear SVM can be separated in 3 space. This is fine, but how is ...
3
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2answers
288 views

Why doesn't my gamma density plot match my histogram of samples?

I'm confused as to why plot is showing such a steep curve for the gamma PDF. I thought that plotting the draws from an inverse-gamma should approximate the PDF, however it doesn't match the plotted ...
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0answers
16 views

interpretation outputs from wavelet analysis from R biwavelet package [on hold]

I am very new wavelet. I am trying to look at periodicity in rainfall time series for a number of locations using biwavelet analysis. Using the function wt, I followed Clustering time series with ...
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0answers
14 views

How to create a Heat map using R that uses Open Government Data [closed]

Please can someone outline the main steps and how to convert an Open Government Accident data-set(based in MS Access) to a heat map like the following http://www.mapsdata.co.uk/?attachment_id=979. A ...
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0answers
14 views

Feed-Forward Neural Networks Query

Is there a way to generate and ideal input vectors given an observed output vector in a trained network. In a lot of Autoencoder tutorials it is shown how to visualize 1 unit. Can this be extended to ...
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0answers
50 views

Suitable graph to compare predicted and actual values across multiple sites

I would like to make a graph to compare predictions with actual values. The graph must be independent of scale and show equal emphasis for over and under prediction. The purpose is to summarise ...
2
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0answers
21 views

Visualizing covariance matrices in R [closed]

I am hoping to draw a picture similar this in R -- this was done in Microsoft Word. Are there any useful R packages or tutorials that may be helpful? Thanks!
1
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1answer
86 views

Plotting results of ordered logistic regression analysis

I tried to plot the results of an ordered logistic regression analysis by calculating the probabilities of endorsing every answer category of the dependent variable (6-point Likert scale, ranging from ...
0
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0answers
14 views

Fill under line curve [migrated]

For the sample dataset below, I would like to just plot the y as a smooth line with fill under the line using R. I am able to get smooth line but not the color filled curve. Could someone please ...
2
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0answers
35 views

How can I get slope and standard error at several levels of a continuous by continuous interaction in R?

I'm comparing the slopes of several different response variables (DVs; representing different populations) to a set of predictors (IVs). For some DVs a 2-way interaction (continuous by continuous) is ...
3
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1answer
48 views

Understanding cluster plot and component variability

I have run k-means clustering. I have also plotted the results using the following code in R: ...
1
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2answers
47 views

Constructing a data set for visualization

I am enrolled in a data analysis course and part of a course, I need to find a time series data set and generate visualizations and predictions based on my understanding of the findings. Instead of ...
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0answers
17 views

how to plot the decision boundary of a linear model in 3d?

In Matlab I have trained a 3 predictor decision model using let's say fitglm or fltlm. Now I want to show the decision boundary plane of the model in 3D. How should I do that?
1
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1answer
26 views

Standard deviation visualization for different time series

I want to visualize the following data in the more concise way possible (only 1 figure of possible!) I have the following averaged and std (grey shaded) profiles, which come from 20 different ...
1
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0answers
25 views

How to read this variable-width chord diagram

This chord diagram is featured in another question asking for its name. Source: Deloitte report, page 10. I've been staring at it for several minutes and still can't figure it out. It's presumably ...
5
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2answers
411 views

What is the name of this graph?

What is the name of this type of graph? It shows the customer flow between mobile device manufacturers. Source: Deloitte report
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0answers
6 views

Set histogram ticks/label using Syntax [migrated]

Let me preface this by saying that I am a programmer by trade, but not very familiar with SPSS. I am helping a friend set up some histogram plots using SPSS Syntax language. Using the Chart Builder, ...
2
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0answers
14 views

Is it invalid to adjust my independent variable based on a regression model fit?

I have a dataset and I want to visualize the relationship between Outcome and Variable1, after adjustment for ...
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0answers
4 views

Using Bxp function in R with varwidth [migrated]

I am quite new to R programming and have been given the task of representing some data in a boxplot. We were only provided the five figure summary of the data, i.e the lowest value, lower ...
0
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0answers
10 views

Reveal confusing class blocs in a large confusion matrix

I built a linear classifier for 85 classes. When I get predictions, I construct a confusion matrix. If I visualize it, it looks pretty noisy. I would like to reorder rows and columns such that I ...
2
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2answers
31 views

Visual comparison of discrete distribution

I would like to compare distribution of a discrete variable at two time points. I tried histograms, but didn't like the result: I tried to plot the after/before ratio, which does better job in ...
2
votes
1answer
28 views

How to visualize compatibility between different versions of different software?

I have five different software products (let's call them A, B, C, D, and E), each with several different versions. Each version of one product is compatible with at least one (and usually several) ...
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0answers
14 views

What is this “PCA-based re-ordering” for a correlation heatmap / correlogram? [duplicate]

The R function corrgram (in the corrgram package) offers several options for re-ordering the correlation matrix. One of them is ...
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0answers
13 views

Inference in bivariate continuous distributions

We have two nodes in different positions, which are represented by two random variables X,Y, with two prior bivariate continuous distributions, p_X , p_Y. f(X,Y,U,V) is a constraint on both ...
2
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1answer
57 views

Finding cycles in data using a periodogram and Fast Fourier Transform

Problem: Detecting cyclical patterns in daily data using periodogram and FFT. The issue is how to code in R the periodogram to detect monthly, quarterly, semi-annual, annual..etc cyclical patterns in ...
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0answers
17 views

Software to visualize multidimensional large datasets

What software is able to do this kind of multidimensional visualizations on large datasets? Interactive multidimensional parallel coordinates mixed with splom or other methods to analyze ...
0
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0answers
7 views

Approach to plotting a shock model with a Poisson parameter?

I know the shock model is defined as: $$ A(t) = \sum_{i=1}^{N(t)} A0\exp[-a(t-sn)] $$ where: $a = 0.5$ N(t) is Poisson ~ lambda, and lambda = 4 $t = 5$ $A0$ is given its own uniform ...
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0answers
33 views

Trend line for “discontinuous” data (missing data points)

How do I draw a trend line for data with missing points? There should be a measurement for each day, but sometimes the user forgets to take it. Here’s some data and my current approach: The data ...
2
votes
1answer
107 views

Does this look like a Cauchy distribution?

This is my data there is more actually... but I just want to know if this looks like a Cauchy distribution, such as these: I'm asking about just that bump... here is the whole distribution , ...
2
votes
1answer
46 views

partial plots from a Random forest classifier for binary predictors

I'm working on a classification problem with continous and categorical predictors with Random Forests (RF). I'm particularly interested on RF as we avoid the specification of the functional form. ...
1
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1answer
22 views

Data visualization tips for a 2x2 factorial design

The data stem from a 2x2-factorial design where both factors have two levels. The x-axis shows the words of a sentence and the y-axis the mean reaction time for each single word. Here is how I ...
1
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2answers
108 views

Approach and example of graph clustering in “R”

I am looking to group/merge nodes in a graph using graph clustering in 'r'. Here is a stunningly toy variation of my problem. There are two "clusters" There is a "bridge" connecting the clusters ...
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0answers
25 views

I need a statistical diagram which will help me depict the following data

I have a temperature data with respect to the land use land cover percentage. eg: Residential Area: 30% Land cover: 45 deg C Temperature Water Area: 2% Land Cover: 22 deg C Temperature and so ...
0
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1answer
90 views

Odds ratio of a continuous variable (univariate cox proportional hazards), how to plot that variable against death%?

I have a continuous variable X with which i ran Cox proportional hazards. The outcome was 1=Death, 0=censored/still alive. I have an odds ratio 0.516 for this predictor. 1) How do i interpret that ...
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1answer
55 views

R: Add more beaty to a simple small plot

I have this data.frame which only contains 8 points. ...
0
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1answer
96 views

Plotting k-means clustering with mixed numerical/categorical data

I have a dataset in CSV format that looks as follows: ...
1
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1answer
55 views

Should I report median or mean-based data if using permutation tests?

I have used permutation tests to analyse some data (specifically, the perm.test() function in R's exactRankTests package). I ...
1
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0answers
46 views

plot logistic regression line over heat plot

My data is binary with two linear independent variables. For both predictors, as they get bigger, there are more positive responses. I have plotted the data in a heatplot showing density of positive ...
0
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0answers
27 views

Data-driven company: 15 days activity, scatter data

I am a co-founder of a company as CTO, I want to create a data-driven company, as I am a Computing and Electrical Engineer I have some statistical background but is the first time that I am trying to ...
4
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1answer
40 views

Comparing many performance curves: request for data visualization tips

My request I wish to compare many performance curves. Plotting all the curves (with error bars) in a single figure makes a mess of things. I'm interested in ways to de-clutter my plot and make it ...
0
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0answers
30 views

Are there any versions of t-SNE for streaming data?

My understanding of t-SNE and the Barnes-Hut approximation is that all data points are required so that all force interactions can be calculated at the same time and each point can be adjusted in the ...
5
votes
2answers
95 views

Box-and-Whisker Plot for Multimodal Distribution

Can I use box-and-whisker plots also for multimodal distribution or only for unimodal distribution?
2
votes
2answers
58 views

What does a Barplot, a Boxplot and eCDF represent?

I want to understand what a barplot, boxplot, and eCDF represent when they are used for plotting data. A barplot is kind of intuitive, easy to understand what it represents. But I fail to understand ...
2
votes
1answer
46 views

Understanding some interesting patterns in a scatterplot

I made a scatterplot for some random variables and they turned out to be interesting patterns. I checked google to learn how to interpret patterns in scatterplots but I failed to find things that ...
2
votes
1answer
47 views

What statistics could an online book store use? [closed]

This is a theoretical question. If I had an online bookstore what kind of statistics would I keep. The number of times a book was viewed is one example. Another example may be the number of visitors ...
1
vote
1answer
51 views

Are visualization techniques useful when the predictive model is a highly flexible machine learning algorithm?

I’ve always used highly flexible machine learning algorithms like boosted trees, support vector machines, and random forests that supposedly excel at identifying non-linear and irregular patterns and ...