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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0
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1answer
8 views

Stata plot data in sequential order

This seems like a really simple question, but I am struggling to find the answer via googling. Basically, my data is in long format, I have run my analyses, and now I want to plot the residuals, ...
0
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0answers
28 views

Heatmap small p-values

I'm experiencing some difficulties trying to manage too small p-values derived from a Fisher test. In particular I have p-values like: 2.220000e-121, 1.260000e-26, 1.260000e-334, and so on. The ...
0
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0answers
21 views

Marginsplot at mean and +/- 1 standard deviation [on hold]

I have data with numerous continuous variables. As a source of illustration, I not only calculate the marginal effects with the marginscomand, but I also plot the ...
0
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0answers
14 views

Create a 'biplot' (using factor analysis?) showing effect of each input variable on a two-output solution

I have a couple hundred datapoints, each of which has 6 input variables which run through a complex simulation to give two output variables. Because I have two output variables, I can create a nice ...
2
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1answer
34 views

How to properly plot paired data when you have more than two groups

I have a question which seems to be very elemental but I have found lot of disagreement about it. I have a situation where we took several measurements of the same individuals. I was suggested to ...
1
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1answer
33 views

Standard practice for small values in a logarithmic visualization

I'm plotting data using circles. I am assigning the radius of the circles to be the value of the data each circle represents. Since the data values get too large to successfully plot in this way I ...
2
votes
1answer
39 views

Interpreting the spread-level plot from R

I created a spreadlevel plot on my simple linear regression model in R. Here is my code, spreadLevelPlot(ols_reg) where ...
5
votes
1answer
76 views

How to add a third variable to a bar plot?

I'm trying to find the best way to show the following data: ...
0
votes
1answer
27 views

Comparing interest rate and yearly stock return

I would like to compare the interest rate with the yearly return of a stock A and plot the 2 lines into 1 graph. The interest rate, which is also a yearly return, is on any given date determined by ...
2
votes
1answer
23 views

Testing data for regular oscillations

This is a little hard to explain, but I would like to test data for periodic oscillations, but not necessarily oscillations of the same amplitude. for example (crudely!): So basically I want to ...
0
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0answers
8 views

Drawing a moving average-style line representing the amount of quota left (R graph drawing) [migrated]

I'm drawing a graph of the usage of my ISP's monthly download quota, categorized by the host that uses it. I've got that part working quite well. What I'm struggling to do is to include a line which ...
-1
votes
1answer
29 views

Data mining or data visualization?

My basic doubt is what is difference between Data mining and Data visualization? does they have different algorithms? I have a machine data stored in database. I have to develop an app which will ...
3
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0answers
23 views

Testing discrete data for periodicity

I have some data which looks roughly periodic - is there a nice way to measure this? This is an example I'm working on and I'd like a metric that I will be able to just threshold to give a decision ...
0
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0answers
37 views

Looking for a data analysis tool [closed]

I am looking for a data analysis tool in which I am able to load data from various sources, specify the inputted columns and write custom analysis for the loaded data. Subsequently I would like to be ...
12
votes
8answers
449 views

How can you visualize the relationship between 3 categorical variables?

I have a dataset with three categorical variables and I want to visualize the relationship between all three in one graph. Any ideas? Currently I am using the following three graphs: Each graph is ...
3
votes
1answer
36 views

Many to many flow diagram or an alluvial plot?

Suppose a person can be defined with 3 variables (each in the range 0-1000) which then lead to an output label Y. I have 20-40 labels. What is a good visualization to show the flow of people to Y ...
1
vote
1answer
36 views

How to interpret height of density plot

How should I interpret the height of density plots: For example in the above plot, peak is at about 0.07 at x=18. Can I infer that about 7% of values are around 18? Can I be more specific than ...
3
votes
1answer
45 views

How to interpret the residual colors on a mosaic plot?

This is a mosaic plot of contingency table dataset HairEyeColor described here. How do I interpret the colors representing residuals? What is the difference ...
4
votes
2answers
62 views

Which is the best visualization for contingency tables?

Which is best plot, from statistical standpoint, to show a contingency table, which is typically being analyzed by chi-square test? Is it a dodged barplot, stacked barplot, heatmap, contour plot, ...
4
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0answers
45 views

Interpretation of biplot in PCA

Blue points all appear in the lower right-hand quadrant in the plane formed by the first two principal components. Is it a good interpretation of the biplot (right panel) to say that blue points ...
1
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0answers
16 views

Best plot to accompany unpaired 2-group test

If one plot is to be recommended for an article, from statistical point of view, which plot is best to convey information in cases of unpaired 2-group comparisons. Is it boxplot, violin plot, ...
2
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0answers
22 views

Better Visualization for Correlation Plots

I'm currently working on an analysis of correlated variables involving +20 variables. I can create correlation (triangle) plots and that is quite helpful but I am wondering what other kinds of data ...
0
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0answers
15 views

Growth mixture modeling with latent variables in R with lcmm

I am trying to replicate the analysis that was used to make this figure: I have measured the depression levels (a quantitative variable) in my subjects at the following time points (in months): ...
0
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0answers
21 views

How can we observe interaction?

Are there graphical methods to determine whether there are some sort of interaction between two variables towards the response variable? Thanks!
0
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0answers
25 views

How does one graph a 3 way interaction on excel? Also. how do you explain a 3 way interaction?

So my 3- way is between Prime x ethnicity x gender, not sure how to graph it and how to verbalize it. Any ideas are greatly appreciated. Thank you.
3
votes
2answers
82 views

How to represent kWh usage by year against average temperature

If there is a better StackExchange to post this question, feel free to direct me elsewhere. Just for fun, I want to chart my monthly household power consumption year-over-year. However, I wish to ...
1
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0answers
21 views

How do I plot an abline() when I don't have any data points (in R) [migrated]

I have to plot a few different simple linear models on a chart, the main point being to comment on them. I have no data for the models. I can't get R to create a plot with appropriate axes, i.e. I ...
1
vote
1answer
19 views

Smoothing Kernel Preventing Simulation of Semi-Circle Law of Random Matrices

In trying to understand the properties of random matrices in the book "Plane Answers to Complex Questions" by R.Christensen, I came across the Semi-Circle Law, and tried to reproduce it with ...
2
votes
1answer
41 views

Visualise variance partitioning

I'm interested in visualising variance partitioning in the context of linear models. Say you run an linear regression that predicts peoples weight based on their height and age. How can you visualise ...
1
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2answers
26 views

Dealing with studies with no cases in meta-analysis

I am meta-analysising the following data by age range: ...
0
votes
1answer
42 views

How to interpret this normal qq-plot?

I have tried to fit a glm to some weather data and I got this weird qq-plot. What could this possibly mean? I am aware of how various skewed error distribution qq-plots should look like, but what I ...
0
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0answers
11 views

Visualization of two terciary vectors

Let $x,y\in\{-1,0,1\}^n$ are two tertiary vectors of the same size where $n$ is a large integer such as $n=1000$. I want to see that $y_i=x_i$. Do you have any idea of the visualization of that ...
3
votes
0answers
24 views

Visualise large number of intersecting data

I am trying to visualise the size of the impact of different activities (A,B,C,D etc.) that improve (reduce the size of) a certain situation. Some of the activities (e.g. B and C) overlap with other ...
0
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0answers
8 views

R gplot for normal distribution - add data to graph [migrated]

I'm trying add to my plot some data that will facilitate users. My distribution graph comes from this code: ...
3
votes
0answers
24 views

visual statistics: fractions of people [closed]

Are there any packages/functions in R to plot visual fractions of people (for frequencies, probabilities, etc)? Examples of the kind of plots I would like to make in R (static, without the ...
0
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0answers
15 views

Ranking search results

I was looking at npm (the largest javascript package manager) and how they implemented the search results ranking. Each package has several important fields: name keywords description ...
3
votes
1answer
32 views

Statistics test to check for a correlation between two groups

I have The number of dispensed items per year and the cost per item - the graphs look as if when the number of dispensed items increase the cost comes down per item (red = cost, blue = number ...
3
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2answers
46 views

Comparing Categorical Variables

What is your go to method to visualize relationships between categorical variables? At work, I find myself working with a discrete outcome variables quite a bit. When exploring data, I often want to ...
0
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0answers
229 views

What's wrong with my derivation on stochastic neighbor embedding?

I've been reading the well-known stochastic neighbor embedding [https://www.cs.nyu.edu/~roweis/papers/sne_final.pdf] for a long time. And I've been trying to derive the gradient of its optimization ...
-1
votes
1answer
40 views

Clustering Data of 8 dimensions

I am working on a data clustering and don't know how I can achieve it with R ! I am working on a data set of 50 observations each of 8 variables. What i want is to have clusters gathering the ...
4
votes
1answer
154 views

Comparing and visualising highly skewed distributions

The data I'm working with are highly skewed, with the vast majority of data concentrated at 0. It seems really hard to highlight the differences between these kind of distributions: ...
1
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0answers
20 views

Display more than two variables on the bar chart in Tableau [closed]

I am trying to put more than several variables on the bar chart in Tableau. Display two of them works fine: use Dual Axes chart type + select Syncronize axes option. Var1 and Var2: Var2 and Var3: ...
2
votes
2answers
75 views

Visualising uncertainty in slope and offset for a regression line?

According to a least squares fit I have performed to my data, my slope is $-0.1038±0.033$, and my offset $0.1065±0.032$. My first idea was to visualise this by drawing three lines: $0.1065-0.1038x$, ...
0
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0answers
7 views

Colors randomly assigned in R riverplot Sankey graph [migrated]

I found the R riverplot package very handy to make Sankey/Minard charts. The output chart is great, including the position of the nodes and the width of the edges. ...
0
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0answers
6 views

r does not show specified dates on x-axis [migrated]

I used the following to generate a histogram ...
3
votes
7answers
291 views

Comparing k-means results to original data: how to interpret the resulting plots?

I'm running k-means on my dataset that can be found here that has 7 classes. I plotted the ggpairs for the dataset and then took k-means and plotted ggpairs again ...
1
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0answers
44 views

best visualization way to show a PDF+CDF to non-math people

EDIT: please ignore the actual formatting of the graph; it is meant as a demo and not "finalized". We are struggling to find the best way to present CDFs to our customers. They can read PDFs, but ...
3
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0answers
38 views

Visualization of canonical correlation analysis results

What is a good way to visualize the results of canonical correlation analysis (CCA)?
3
votes
1answer
67 views

Data Visualization: how to plot irregularly spaced time series?

I have a collection of highly irregular sampled data. The gap between measurements can be few seconds, or few weeks or few decades... What are the techniques to plot irregularly spaced time series ...
0
votes
1answer
16 views

What does Density mean on Y-axis in qplot()? [duplicate]

I'm a beginner at R. I was trying out some code for implementing a basic qplot() on the inbuilt 'mtcars' dataset in R. ...