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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7 views

Plot large high dimensional dataset

I have a high dimensional dataset (12 variables) with 42000 observations. I made a clustering and i have evidence to choose five cluster.So i want to plot with some tools my dataset to show (if it is ...
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1answer
30 views

Using Linear Regression on text data

Im trying to create a model that predicts an authors age. Im using (Nguyen et al,2011) as my basis. Using a Bag of Words Model I count the occurences of words per Document (which are Posts from ...
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0answers
4 views

Analysis to show averages for more each year of exposure to a treatment does not shift the averages toward an expected average

I apologize if there is appropriate terminology I should be using in my description that I do not know. Hopefully the way I've made my question generic for the sake of preserving the integrity of my ...
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0answers
4 views

how to find principal vector and prencipal component from kernel matrix?

i have kernel matrix n*n it as gram matrix how i find U as principal vector as alpha and V as principal component PC by solving eigen value problem as lamda ?how i normalize them ?how i project the ...
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0answers
14 views

What is the purpose of multiplying by the difference between the midpoints of two bins in this recipe?

While browsing for information on how I might plot a fitted normal curve over a histogram, I found the following: http://www.statmethods.net/graphs/density.html There is a line I don't fully ...
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0answers
17 views

Predicted values in random intercepts model with more than one explanatory variable [closed]

I want to obtain predicted values from random intercepts model by setting some predictors constant. I have a data set of 58 countries. I ran a RI model after controlling for demographics (...
0
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1answer
8 views

Geographical Sankey Diagrams [closed]

I want to create Sankey Diagrams but put them on a map as per the start and end points. Something like you see on this website - http://www.sankey-diagrams.com/tag/map/ I'm unable to find a software ...
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0answers
28 views

Is this explanatory visualisation? [closed]

I need to create an explanatory data visualisation and I'm not sure if the work I’ve done is enough. Do I need to include some specific finding or trend from the data. I have a link which includes ...
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0answers
8 views

Dunnett T3 test interpretation

i have result from a Dunnett T3 test using package DTK in R. The result do not give me any p-value but only "Diff", "lower CI" and "upper CI". i can understand the difference between groups as the ...
0
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1answer
16 views

plot accuracy of classification in Random forest and SVM in R

I have a question and I will be grateful if you help me. Is it possible to plot admixture or pure of individuals with Random forest-SVM methods (models) in R . Is there command for this work?
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0answers
22 views

Pattern in scale-location plot, despite transforming y variable

The regression model being built uses about 2200 odd observations and about 20 input variables (majority of which are categorical with a couple of continuous and ordinal variables). I fail the ...
2
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1answer
43 views

How to properly display changes in percentages over time?

Our company is developing self-learning software that extracts data from documents and enters it automatically into text-fields in some other software, on behalf of the user. These suggestions aren't ...
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0answers
3 views

triangulate with rgeos

The triangulate function in the rgeos package does not seem to work. ...
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0answers
6 views

Using qgraph on multilevel data

I'm interested in generating correlation network maps, and have come across qgraph in R. While the program is straightforward to use with cross-sectional data (and no clustering), I was wondering if ...
1
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2answers
21 views

Find out a huge number of coordinates is uniformly distributed or not

Assume that we have a huge number of locations like $10^{6}$ locations in two-dimensional space. The coordinates are generated randomly. what I want to do is to make sure that the data distributed ...
3
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2answers
346 views

The correct way to display non-normal data?

In my university we learned a lot about normal data, but handling non-normal data wasn't really covered. For some benchmarking of an application I have data has a very high frequency around one value ...
1
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0answers
15 views

Effect of partitioning on graph density and edge cuts

When a graph is partitioned using partitioners like METIS, what are the expected effect on density (ratio of number of actual edges to the maximum total number of edges ) and edge cuts(comparison ...
3
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1answer
53 views

When to use distance biplot vs. correlation biplot in PCA

I wonder what could be good examples of using scaling 1 and 2 for a principal component analysis biplot. By examples, I mean ecological examples or applied examples of the PCA scaling so that one can ...
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0answers
8 views

visualisation of GEEGLM results and AIC

I'd like to ask for help with geeglm function. I have been advised to perform a model (geeglm), but was not able to find very information on if 1) it is possible to plot the results of the model ...
1
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1answer
35 views

Robust statistic for representing small dataset with outliers and representing them graphically

I'm evaluating different systems varying a certain parameter common to all of them. Let this parameter be x. At each x value I ...
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0answers
14 views

Simulation and visualization libraries for reinforcement learning in python?

I am aware of keras, block n a few others Python libraries for nn which do RL among others. But is there a library than can make the task of visualizations easy? In terms of 3D model of ...
0
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1answer
28 views

Visualizing Data in 3 Dimensions

I want a way to visualize this table as a graph: there is one categorical variable, and 4 quantitative variables. Each of the 20 values in the table would also vary with time (lets say it's annual ...
3
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0answers
31 views

How to draw a Shepard diagram from PCA scores?

In Legendre & Legendre 2012, they are saying that it is possible to diagnostic a PCA with the Shepard diagram. What would be the procedure to draw the diagram? I don't know what to put in relation ...
0
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1answer
35 views

Qualitative implications of Linear Discriminant Analysis (LDA)

I'm a beginner to LDA, and my question is about its qualitative implications. Say I have two classes of medical data, already classified as: $C_1=\{x_{11},x_{12}, ...x_{1n_1}\}, C_2=\{x_{21}, x_{22} ...
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1answer
80 views

help for interpreting the residuals vs. fitted values plot

I have an ordinal variable (scale of stress) considered as continuous predictor in a multivariate linear regression. I would like to verify the assumption of linearity and this is my residuals vs. ...
4
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2answers
60 views

How to better plot and compare overlapping histograms?

I want to compare the distribution of 3 different time spans: So I plot the histograms together, along with the model curve. But I'm afraid that overlapping histograms makes each hard to see. The ...
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0answers
24 views

Simple question concerning the argument “breaks” of hist() [migrated]

When I run > hist(precip, breaks = 10) I get the following histogram: According to the document, breaks is "a single ...
1
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0answers
30 views

Is/are there any threshold value(s) to determine to see if PCA is useful at all, specially for high dimensional data?

Apologies if this is a naïve question, but it's not so naïve to me! Let's first assume we have 2D data which are perfectly linear but not along the x- or y-axis. PCA will rotate it so that it becomes ...
6
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3answers
242 views

Pattern detection in scatter plot

Below is a scatter plot (capped at $10k) representing the average donation a project receives vs the word count of the funding request essay for all projects represented in the open Donors Choose ...
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0answers
13 views

Use of Excluded Variables Table on Multiple Regression

I'm currently running a multiple regression analysis as part of my first year PhD study, trying to predict Theory of Mind through 2 variables of interest while controlling for socio-demographic data. ...
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0answers
8 views

Difference between adversarial, random and stochastic ordering in data streams

Kindly explain the difference between adversarial, random and stochastic ordering in data streams in layman terms
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0answers
21 views

Recurrent time-to-event?

I am working on a research paper looking at hospital readmissions after surgery and I have data for about 200 patients. I have the readmission dates for the first year after initial hospital discharge ...
1
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0answers
14 views

R: Plot trees from h2o.randomForest() and h2o.gbm() [migrated]

Looking for an efficient way to plot trees in rstudio, H2O's Flow or in local html page from h2o's RF and GBM models similar to the one in the image in link below. Specifically, how do you plot trees ...
0
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0answers
11 views

How to plot a second legend in ggplot2 in r [migrated]

I have two datasets I am trying to display on one chart overlaid in ggplot2 under r. Dataset 1 needs to be displayed as a grouped set of bars (1 group per country - there are a few countries in the ...
0
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1answer
12 views

Looking at Time Vs Index

I have a collection of times, and I'm trying to analyze relative distances between different times. When visualizing this data, does it make sense to plot (idx,time), where idx in the index of a set ...
1
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1answer
29 views

How does one visualize the self-organizing map of $n$-dimensional data

I have a data set consisting from $7$-dimensional data points. I want to produce a self-organizing map for this data to see how my data is clustered. I have been reading some tutorials from the ...
1
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0answers
21 views

Which version of the Tukey mean-difference plot is more convenient?

I have a single parameter measured by two methods: A and B. I need to see how these two methods compare against each other, so ...
0
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0answers
10 views

Event Arrival visualisation

I have a streaming set of visualisations (time stamp of each event) which tend to be grouped when arriving at the queue. I was wondering if I could go from the graph at the top to the density graph ...
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0answers
19 views

Using predict() to plot glm (and glmm) with continuous and categorical explanatory variables

I want to visualize the output from my glm by plotting the predicted values, and found an example in the Mixed Effects Models book by Zuur (pg 216-219). The description of this code from the book is: ...
5
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3answers
124 views

A bar graph and its look - should I add titles, where should values go etc

I didn't use r but I have recently decided to use it to plot graphs because of its great capability to do so. 'd like to plot a graph that shows voter turnout in ...
0
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1answer
37 views

Debugging in R when using nls

How to correct a nls estimator when I get an error message that: step factor 0.000488281 reduced below 'minFactor' of 0.000976562 The full problem: ...
1
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1answer
62 views

Finding parameters of a given function

I have this following relation $$N = \dfrac{(113834700(3000-c)(1-e^{-(Xn)/(3000-c)})}{n}$$ I also have a set of values for $N$ and $X$, these are vectors. So, we have a scatter plot $N$ vs $X$. We ...
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0answers
53 views

Visualizing higher-order cross-moments (cokurtosis, coskewness)

How could and coskewness and cokurtosis be visualized in an easily comprehensible manner? Mean, variances, skewness, kurtosis can easily be illustrated in density plots: (Source: own *TeX-stuff) ...
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0answers
9 views

Plot individual(longitudinal ) trajectories of an lme model using nlme

I have a dataset with id, time(continious) and DFG. ...
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2answers
68 views

Why is the QQ Plot for Normal Distribution a Straight Line?

Pardon my basic question on this, but I could not find why the QQ Plot for normal distribution is a straight line. Also, according to the accepted answer here: Percentile vs quantile vs quartile ...
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0answers
26 views

How to plot a categorical variable from a GLM

How do you correctly plot results from a GLM used to test a categorical variable? Here is a reproducible example in R: ...
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0answers
20 views

Correct mode to fit power law

I have a simple network and I'am trying to create the plot of the degree distribution. The question is: the fit_power_law function parameter must be degre (...
0
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0answers
19 views

data visualization methods to place markers along color gradient?

I have an online map created in Leaflet that shows train stops, connected by a line showing how late in minutes the train was to each station by a color gradient: I would like to create a separate ...
1
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1answer
43 views

Is there skew/kurtosis on this plot?

I'm doing a stats assignment and for one of the questions I need to make a judgement of whether there is skew and kurtosis from a p-p plot in SPSS. I've been over the lecture, and we were told to look ...
1
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1answer
19 views

Grouping data in a multiline chart mean + outliers

I have an existing multi-line graph that displays time series data about success percentages of nodes in a cluster in 5 minute intervals, there are more than 50 nodes in the cluster and the way this ...