Presenting results in graphical form; for example, histogram, scatterplot, or boxplot.
1
vote
0answers
41 views
Diagnostic plot for assessing homogeneity of variance-covariance matrices
Is there a handy plot for comparing the variance-covariance matrices of two (or perhaps more) groups? An alternative to looking at lots of marginal plots, especially in the multivariate Normal case?
0
votes
1answer
51 views
0
votes
1answer
27 views
SPSS: Plot a multinomial logistic regression
Very simply, I'd like to plot a graph that compares what is predicted by the model to the real observations.
It seems easy for binomials, but for multinomial the graph that SPSS creates is pretty ...
1
vote
0answers
21 views
R module for creating plots of prototypical individuals from fitted models?
In order to help interpret fitted models — especially those with interaction terms and non-linear components — I've found it useful to plot predicted values of a dependent variables for what we might ...
3
votes
3answers
82 views
How should I color scheme a heat map based off data below?
I have subdivided the globe into 100 sq mile bins and then collected how many tweets were sent with a geolocation within each bin. At first I color coded each bin on the map based off a standardized ...
0
votes
0answers
22 views
Signature plots definition
While reading some articles about High frequency statistics in financial markets, more precisely wile reading about microstructure noise, I was confronted by some signature plots simulated graphics.
...
0
votes
0answers
21 views
Plot normal probability for effect estimates in factorial design in R
I have 2 level Design (DOE) with 4 factors (A,B,C,D). I've already calculated the estimates for each main effect and all the interaction effects.
How can I construct the normal probability plot to ...
0
votes
0answers
12 views
Visualising results from 'effects' package [migrated]
Any ideas on how to control the tick-label size e.g. on the following code i'd like to control the font size of the words 'Male' and 'Female' on the x axis and the units of 'volunteer' on the Y axis. ...
0
votes
0answers
15 views
How to combine different barplot in R? [migrated]
I am a new R user.
I have a difficult time figuring out how to combine different barplot into one graph.
For example,
Suppose, the top five of professions in China, are, government employees, ...
0
votes
0answers
36 views
Visualising mixed effects factorial design results
My model is a mixed, multi-factorial one. I am using lme (library nlme) because I also need to include weights to account for heteroscedasticity. I would like to be able to visualize the model ...
4
votes
2answers
104 views
Data visualization of average and standard deviation over a small time series
I am trying to find the best way to visualize the following data:
I have values for 3 different times/dates, each time/date has the same 20 species. For each species I have the average height and ...
2
votes
2answers
59 views
How can I convert my dataset into a new dataset which is adjusted for confounding covariates?
I have used software before to do linear regression and factor in/out the confounding variables, but what I would like to do is generate a new data set which is adjusted for the confounding variables. ...
1
vote
0answers
31 views
Graph data from an Excel Pivot in a Tree Representation
I've been looking for a while to see if there's any add-on or software which allows data from an excel pivot to be graphed dynamically in a visual tree representation. I know of the likes of graphviz ...
5
votes
2answers
313 views
What distribution does my data follow?
Let us say that I have 1000 components and I have been collecting data on how many times these log a failure and each time they logged a failure, I am also keeping track of how long it took my team to ...
3
votes
1answer
87 views
How to plot a 5D data set in “star coordinates”?
I am reading the paper "Star Coordinates: A Multidimensional Visualization Technique with Uniform Treatment of Dimensions" and trying to plot my data.
Lets say I have $A(2,5,3,1,8)$, a five ...
2
votes
1answer
46 views
Visualise data with different sample sizes
I did a literature review and ended up with a lot of data in the kind of "10 out of 20 studies found x while 4 out of 8 studies found y".
To be more precise; I looked up the contribution of seafood ...
0
votes
1answer
39 views
2 x 2 between-subjects design ANCOVA with non-sig. interaction effect; but profile plot shows curves crossing
I'm running a 2X2 between-subjects design ANCOVA and wonder about one peculiar thing: The ANCOVA output table reveals no significant interaction effect, albeit the profile plot shows two lines that ...
3
votes
2answers
94 views
Chart/visual for negative binomial regression
My wife is presenting a study at a conference poster session. She has a correlation of sorts [1] where kids' self-assessment of asthma ("I felt a lot better" or "I felt a little better or not better") ...
0
votes
0answers
10 views
How to plot two curves on the same canvas in R [migrated]
Here is the code for generating simulated data:
...
3
votes
2answers
223 views
Correlogram in R like in Stata?
In STATA I can create a "Correlogram" to find the appropriate lag order in case of time series. E.g.
I know I can use the acf or Acf of the forecast package to calculate the ACF and PACF and to ...
2
votes
2answers
49 views
Omit 0 lag order in ACF plot
How can I omit the zero lag order in an acf plot? See this picture:
generated by
...
2
votes
2answers
104 views
Compare two Medians
I'm taking an intro to data visualization class, but I don't have a strong foundation in statistics.
For now I'm trying to do something basic with bar graphs.
I basically want to plot the median ...
3
votes
0answers
45 views
Visualizing results from multiple latent class models
I am using latent class analysis to cluster a sample of observations based on a set of binary variables. I am using R and the package poLCA. In LCA, you must specify the number of clusters you want to ...
0
votes
0answers
47 views
How to draw the regression line and the scatterplot between observed and predicted in R [migrated]
How can I draw observed vs predicted scatterplot in R? I also want to show the regression line in it.
...
0
votes
1answer
52 views
Plotting high dimensional data
I want to plot high dimensional data on x y plane. For that I know three methods: Principal component analysis (PCA), multidimensional scaling (MDS) and a method from spectral graph theory (using the ...
2
votes
2answers
63 views
What scheme is used for the axes in this plot?
What scheme is being used for the axes in this plot? Does it have a name?
It looks like the x axis is linear with a discrete change in spacing at 1 micron, but I can't figure out what's going on in ...
0
votes
0answers
15 views
How to create 1 x-axis label for 2 plotted bars [migrated]
I've created a bar plot but need to change the x-axis labels so that there's one label for the first two bars and a second label for the next two bars. At present each of the 4 plotted bars are ...
0
votes
1answer
29 views
What's the logic/motivation behind pre-filtering data based on variance?
I am currently working with gene expression data where I have a number of genes (variables) measured over a number of samples. I could not make sense of the statistics and visualization suite we have, ...
8
votes
2answers
67 views
Term used to describe two lines appearing closer to each other when lines are at a greater gradient
Forgive me if this is outside of the scope of Cross Validated, but it seemed relevant on the visualization front. As described here (page 3) there exists a phenomenon when gauging the distance ...
3
votes
0answers
103 views
A non-technical visualization of my database (a layman's ER Diagram?) [closed]
I would like to provide an intuitive visualization of my database for readers and users of the database that does not require technical knowledge of database structure. The figure will be included in ...
1
vote
3answers
69 views
Truncating error bars in publication graph?
I am preparing a graph for publication: it has 3 panels, and two groups (line graphs) in each panel, with error bars at each time point.
For one of the panels, the last time point (with fewer ...
7
votes
6answers
368 views
Graph for relationship between two ordinal variables
What is an appropriate graph to illustrate the relationship between two ordinal variables?
A few options I can think of:
Scatter plot with added random jitter to stop points hiding each other. ...
0
votes
0answers
18 views
ANOVA: dump data points instead of graphs [closed]
I want R to give me the points to use to make my own plots, rather than getting the plots that R creates. As I'm just a beginner with R, can you please tell me how to do this ?
2
votes
2answers
114 views
How to visualize counts of different categories
Suppose we have $10$ boxes and we are interested in measuring the number of apples, oranges and pears in each. What is a good way to visualize how the boxes relate to each other in terms of the ...
4
votes
2answers
126 views
How to best display crosstab data?
I have a 10x10 matrix composed of two variables with 10 brands each. One variable is the brand purchased, the other is the brand considered. My matrix shows a crosstabulation between the two. I need ...
1
vote
1answer
83 views
what do you call a pie chart with equal arcs but different areas
I want to create a pie chart for four items, the arc of the slices would be equal, each 90 degrees, however the areas would be different since I will shrink or enlarge the slice depending on the data. ...
1
vote
2answers
102 views
Interpreting graphs
I'm not sure what to ask so forgive me if this is a bit all over the place.
I've written a program to analyze the time it takes to query a data structure and generated a graph which shows on the Y ...
0
votes
1answer
43 views
How to plot t-distribution using javascript? [closed]
Is there a computational approximation for plotting the t-distribution in languages such as JavaScript?
I'd like the user to be able to specify the relevant parameters (e.g., df, one- vs. ...
5
votes
2answers
169 views
Plotting and presenting longitudinal data, options?
Hypothetical Scenario: A few continuous variables, each measured repeatedly at, say 12 time points, each with say, 150 observations. There are small fluctuations from one time point to another (i.e. ...
2
votes
1answer
116 views
How do I plot loglikelihood functions of the Cauchy distribution in R?
I need to determine whether or not there is always a unique root of the log-likelihood equation l'(x,0)=0 for different samples sizes of the Cauchy distribution.
But I am unsure about how to ...
7
votes
2answers
167 views
What's a good visualization for Poisson regressions?
I want to associate code defects with code complexity metrics like closeness. One common model is to view this as a Poisson process, where the duration is how much time is spent coding and the density ...
0
votes
1answer
73 views
How can I make a predict plot varying two variables in R?
I want to plot the results of a regression model, but allowing two variable to vary simultaneously. I guess I could do that using predict() function in R, but I am running a model that does not have ...
1
vote
1answer
44 views
self-organizing maps and order of samples
I've just started learning about self-organizing maps without much of a background in neural networks, so forgive me if this question seems trivial, but it seems that a SOM depends on which order the ...
5
votes
4answers
480 views
Excel, Heatmap & Data Visualization without add-ins
I am working for a big company with a restrictive internet policy and Excel-addicted colleagues. I am currently working on evolution of market correlations which implies some statistics, data ...
2
votes
3answers
69 views
Present / visualize aggregated data for years
I have yearly data for the import of fish products to Portugal (years 2000 to 2011) per country. There are some trends that I would like to visualize, for example some countries drop out and enter in ...
-1
votes
1answer
42 views
heat map of two different users
How to represent or compare the heat map of two different users who travels in different areas? say for example two different users drive in different areas of a country with same pattern. How can ...
1
vote
0answers
70 views
Plotting confidence bands around fitted values from a binomial GLMM
I have some parameter estimates and confidence intervals estimated from a set of model-averaged binomial GLMMs: two main effects and their interaction. I would like to plot [population level] fitted ...
2
votes
1answer
140 views
Test whether simple slopes are different from zero in 3-way interaction in multiple regression
I'm trying to test whether 4 different slopes from a 3-way interaction in multiple regression are significantly different from zero. The four lines are plotted at 2 levels of each of the 2 moderators ...
0
votes
1answer
195 views
Interpreting Cluster Heat Maps From R
So I have been looking at how to plot high dimensional clustered data, and one of the options that come up is a heat map.
Although there are many webpages that provides code on how to create one, ...
0
votes
2answers
69 views
is there a regression version of the pairs() function somewhere?
Consider the pairs() function. Given a matrix $X$ with $p$ columns it will produce a $p$-by-$p$ matrix of plots with in each cell a bivariate plot of $X_k$ (the $k$ ...
