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.)

learn more… | top users | synonyms (8)

0
votes
0answers
3 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 ...
1
vote
2answers
14 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
17 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) ...
1
vote
0answers
13 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 ...
0
votes
0answers
12 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 ...
1
vote
1answer
39 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 ...
1
vote
0answers
15 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
votes
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 ...
0
votes
0answers
22 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
84 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
33 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
vote
1answer
15 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 ...
0
votes
0answers
17 views

Need for correction of persp plot? [on hold]

I have problem with persp and contour plot to visualize PDF and CDF plot of bivariate standard normal plots in R. When I call the generic function persp() and contour() I got wrong plots of PDF and ...
1
vote
2answers
85 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 ...
1
vote
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
votes
0answers
42 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/stillalive. I have an odds ratio 0.516 for this predictor. 1) How do i interpret that ...
0
votes
0answers
17 views

How to make a heat map in R based on a gif of the human body? [migrated]

I have a gif of a human body and need to plot a heat map on it . The data to be used is in R I have found instructions on how to import a gif but it is the getting my data onto the gif that I am ...
0
votes
0answers
7 views

Plotting Leibniz series [migrated]

How to plot Leibniz series in R for above? Basically I am looking for R commands.
-2
votes
1answer
49 views

R: Add more beaty to a simple small plot

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

Plotting k-means clustering with mixed numerical/categorical data

I have a dataset in CSV format that looks as follows: ...
1
vote
1answer
42 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
vote
0answers
41 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
votes
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
votes
1answer
31 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
votes
0answers
22 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
60 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
52 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
41 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
45 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
48 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 ...
3
votes
1answer
28 views

Visualizing data points with mixed membership?

Imagine I have 100 data points soft-belonging to 3 clusters. Hence, each of them has a mixture membership of (x, y, 1-x-y). For example, if a point's membership is (0.1, 0.5, 0.4), then this point is ...
4
votes
1answer
58 views

How to plot data when their values differ by orders of magnitude?

What is the best practice for plotting data where their values differ by several orders of magnitude? For example, suppose that you are comparing the learning times of two machine learning ...
4
votes
2answers
73 views

Data Visualization: Alternatives to Choropleth maps for spatial data and statistical graphics

This question is about data visualization and statistical graphics. I have been trying to present statistical data in map. The data is at county level in the US and also at time state level. My data ...
1
vote
1answer
54 views

Plotting a polynomial regression with its confidence interval of 95% in R

I have been trying for a while plotting a polynomial regression using R. I have read several libraries, as ggplot2, qplot, etc, with no succeed. The next are my data: I normally use the R GUI called ...
0
votes
0answers
15 views

ggplot2, change title size [migrated]

I would like to have my main title and axis title have the same font size as the annotated text in my plot. i used theme_get() and found that text size is 12, so I did that in my theme statement - ...
0
votes
0answers
2 views

How can I create multiple bar charts at once (in R)? [migrated]

I have a data set that includes Likert-type ratings of a bunch of around 20 measures. In my head I have an image of one long chart with 20 plots showing the distribution for each question. Using ...
1
vote
0answers
16 views

R: Export CrossTable to Latex [migrated]

Is there a way to export a CrossTable (from the gmodels package) to Latex? So if I do : ...
1
vote
1answer
74 views

Plot regression with interaction in R

I did a regression analysis with the following variables: Predictor = dummy variable, dependent Variable = metric, moderator variable = metric. I now want to show my results in a figure. The ...
1
vote
0answers
37 views

Subject-specific graphics for repeated-measure design

I am doing linear mixed effect modelling testing the effect of treatment on pitch, with ...
0
votes
1answer
39 views

is there a way to plot best glm model in model selection

I have run this glm model y~poly(xa,2)+poly(xb,2)+... Then have found the best fitting model using AICc. The best fitting model has a subset of the ...
2
votes
1answer
33 views

Visualising individual observations in weighted data

Context: I have a survey where I have deliberately oversampled particular groups of respondents. I am aggregating these groups and therefore I am using measures such as the weighted mean to ensure my ...
2
votes
2answers
31 views

Best way to visualise impact distance against launch speeds and angle

I am modelling the trajectory of a projectile, incorporating atmospheric drag. I am calculating the distance from the launch point for when the projectile impacts the ground. I have generated this ...
0
votes
0answers
6 views

concept behind words occuring close by in topic modeling

So I have been reading a lot on topic modeling and word clouds. I understood the working of LDA via Gibbs sampling. What I didn't understood is when we plot the results of topic modeling via ...
5
votes
4answers
237 views

Nonlinear effect in an interaction term

If you have B, which is a 0/1 outcome variable, S, which is a continuous variable, and ...
4
votes
0answers
75 views

Best way to visualize scatterplot with thousands of points in a grayscale-friendly way?

I have 10,000 data points like shown in this plot: It's comparing the running time of some piece of code with the size of the problem it's running on. (There are 2 important steps in the code; step ...
2
votes
0answers
36 views

Visualize performance, % of goal implementation

I want to visualize goal achievment progress. This is my first idea: use area chart to show progress in current metric use horizontal band to show the goal value colorize areas under/above the band ...
1
vote
0answers
32 views

How to visualize sparse multidimensional table?

I want to understand Profit vis-a-vis other properties as shown in table below <> means include everything from that column (like * in regular expressions) ...
0
votes
0answers
55 views

LASSO plot label lines with names using glmnet

First, thanks to all of you, this message board is truly helpful, at least up until now;) I used the search option and checked all related questions about LASSO but I could not find an appropriate ...
6
votes
1answer
115 views

What's the correct way to visualize discrete variables?

For example, when visualizing the GDP or GDP per capita of different countries, I often see a line plot (or a radar chart), where the x-axis (or the angular direction) is for countries and the y-axis ...
0
votes
0answers
59 views

How to apply a Gaussian filter to co-ordinate data

I'm working on a project to investigate the correlation of surface finish and face sealing effectiveness. I have a trace of the surface of my seal and the next step is to apply a Gaussian filter to ...