ggplot2 is an actively maintained open-source chart-drawing library for R, written by Hadley Wickham, based upon the principles of "The Grammar of Graphics". It partially replaces R's basic plot and the lattice package, while providing a clean, powerful, orthogonal and fun API.

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25 views

ggplot2 - geom_density(): how to change legend title and order [on hold]

i created a density diagram for a set of data, divided by the different weekdays. ggplot(template, aes(x=test, color=as.factor(Weekday))) + geom_density() Now i ...
5
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0answers
92 views

What's wrong with this visualization of eigenvalues/vectors/PCA?

I have a dataset of 17 people, ranking 77 statements. I want to extract principal components on a rotated correlation matrix of correlations between people (as variables) across statements (as ...
0
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1answer
34 views

What measures the y-axis in stat_smooth, ggplot2 in R? [closed]

I am fairly new with logistic regression. I have a binary response. And did this plot. The binary response is: Y = 0: The student fails Y = 1: The student succeed ...
3
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1answer
63 views

How to interpret notched box plots

While doing some EDA I decided to use a box plot to illustrate the difference between two levels of a factor. The way ggplot rendered the box plot was satisfactory, but slightly simplistic (first ...
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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 ...
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15 views

Compute confidence cutoff for scatterplot

I have data collected from two different individuals for different treatments, like this: ...
3
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2answers
47 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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1answer
31 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. ...
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2answers
83 views

The meaning of units on the axes of a PCA plot

I've used the R packages DESeq2 and ggplot2 and the following code ...
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1answer
347 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 ...
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0answers
51 views

Subject-specific graphics for repeated-measure design

I am doing linear mixed effect modelling testing the effect of treatment on pitch, with ...
0
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0answers
58 views

Curve fitting in R. L-shaped?

I have measurements for my dependent and independent variable across 4 different experimental sites ...
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0answers
17 views

R: Fit a trendline to these points in ggplot [duplicate]

I have measurements for my dependent and independent variable across 4 different experimental sites ...
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0answers
56 views

Describing GAM from ggplot's stat_smooth in a paper

I am writing a paper where I have some figures with lines drawn using ggplot2's stat_smooth with no arguments. When I generate a ...
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1answer
61 views

Rearrange boxplot with ggplot [closed]

My data looks as follows: X=cbind(var1=rbinom(100,1,0.26),var2=rbinom(100,1,0.01), var3=rbinom(100,1,0.07),var4=rbinom(100,1,0.09),var5=rbinom(100,1,0.004)) If ...
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2answers
131 views

Density plot narrow peaks and mean far away from peaks

I am trying to understand a density plot. It has narrow peaks and means are far away from the peaks. What would be the reason for such behavior? Should I be doing a different plot to understand this ...
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2answers
77 views

Density Plot, scatter plot or Regression if not both best way to visualize

I am working with a data set that has information of users and their contributions. Each user has expert level and contribute to multiple section of the project. Here is a sample data set: ...
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2answers
2k views

Best approach in R for interpolating and curve fitting a tiny dataset?

I have a set of 'activity' values for some enzyme assays I have been doing, that come out of some analysis I've been doing. The problem is, the data is fairly crap, and there aren't many points, but ...
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0answers
18 views

Using density estimate to look for problems in data collection - with R

I am analysing some data coming from different media (tv, press, ...). I would like to test if the data I have are good (if the collect was flawless), identify big issues and eventually understand ...
0
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1answer
456 views

Scatter plots in ggplot2 with non linear trend line [closed]

I'm trying to create a scatter plot using ggplot. The x value goes roughly from 0-20, and the y value goes from 0-~50. The data is raw so it's not nice and neat and I need to plot a curved line ...
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0answers
29 views

Terminology and handling of log-normal mixture distributions

The definition of a log-normal distribution of a random variable is based on normality of its logarithm. I'm curious whether there exist a specific term for cases, where log-transformed data does not ...
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1answer
110 views

Compare regression slopes of repeated measures linear regression

In my design, I have two groups of subjects and every subject is tested in four different conditions. So, I have a within-subject factor ('span_num', which ranges from 0 to 3) and a between-subject ...
2
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1answer
2k views

Smoother lines for ggplot2

This question probably has a simple solution, still the thing is I've written a code to plot mortality in 2 different groups and that is, death in obese patients vs not obese. Now their are 2 groups ...
2
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1answer
179 views

How to plot a comparison of read counts in R

I have a bunch of genetic read counts for different several genes. Each gene is divided into two groups (0 and 1). What I want to do is make a vertical plot side by side of the 0 group and the 1 ...
2
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1answer
803 views

R scatterplot matrix with nonparametric density

I normally use MATLAB, or JMP but right now am working with R. I have ~150 dimensional data with a few hundred thousand rows. Some of the columns are non-informative, they only have one value. This ...
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119 views

Contradicting interaction significance with graphical visualisation in glmer

I'm investigating environmental effects (wind) on acoustic receiver detection probability for two types of transmitters using a binomial glmer. While my model analysis indicates that there's a ...
3
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1answer
2k views

How can I 'dodge' the position of geom_point in ggplot2?

I am using ggplot2 in R to make plots like the following ones: The errorbars overlap with each other which look really messy. How can I separate the errorbars for different indices? I have used ...
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21 views

Plot triple optimization boosting procedure

I am looking for a way to graph a triple optimization used in boosting. I did individual cross-validation on shrinkage, number of trees, and interaction depth and found the boundaries of interesting ...
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0answers
1k views

Q: plot glmm fixed and random effects (glmer in package lme4) using ggplot2

I am trying to visualize the results from a glmm that I ran with the lme4 package. ...
2
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2answers
242 views

How can I cluster data in a grid-like fashion and heat map the averages in R?

I have a data frame of 3 columns. The first one is the response variable the second and the third ones are some criteria. You can create your own example similar to mine, using this piece of code with ...
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2answers
83 views

What is the best way to automatically select sensible, comprehensible breakpoints?

ggplot2 seems to, by default, select very nice, comprehensible breaks for continuous data. I would like to plot the data according to one scale (logistic) by ...
5
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1answer
53 views

Parameter region for existence of solutions of equation

How does one plot the set S of parameter region of equations using r?. My problem is that I have one equation with 2 variables defined by $g(x,a,b) = 0$ and I want to plot the set of $(a,b)$ where the ...
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1answer
171 views

Can I Use a Dummy Variable in Quadratic form in lm() in R?

I'm trying to replicate models published in The Age-Productivity Gradient: Evidence from a Sample of F1 Drivers and am stumbling at first hurdle over a line "the baseline specification contains a ...
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2answers
34 views

T test with one group

I think it is a simple question, but I got many different results and now I am not sure which test to use. I have one group and 2 different scores (higher scores means higher either positive or ...
5
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1answer
177 views

Demonstrate difference in growth over time

Short version Is there a difference per treatment given time and this dataset? Or if the difference we're trying to demonstrate is important, what's the best method we have for teasing this out? ...
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1answer
453 views

R ggplot2/ezPlot: Plotting 3x3 RM ANOVA design per quantile of covariate with error bars

First of all, my data: http://www.pastebin.ca/2599202 (I hope this is not too inconvenient, because I fail creating good fitting example data) What I basically need, is a plot like: I plotted the ...
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1answer
341 views

Learning curve shows decreasing accuracy

I'm working on a random forest classifier with 10-folds CV to aestimate the hyperparameter 'mtry' (chosen by maximizing AUROC). I decided to pre-split the training set in 8 samples equals in size ...
0
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1answer
2k views

Risk table for a Kaplan Meier plot in R

I need to make a Kaplan Meier plot with a risk table beneath it. Otherwise stated, I need a table of the number of subjects at risk at different time points aligned below the figure. I found a website ...
2
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1answer
278 views

Plot 3 density plots in the same graph, showing also standard deviation limits in each one

I have obtained from a paper next results: Variable 1: Mean=165, sd=15 Variable 2: Mean=149, sd=18 Variable 3: Mean=134, sd=25 I have simulated normal distributions using rnorm. This is the way ...
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1answer
1k views

In R, how do I fit a student-t distribution to a set of empirical data? [duplicate]

In R, I can fit a Probability Density Function to some empirical data using the following code: ...
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2answers
55 views

Plotting data from several files on one plot

I have more than one file of data from different experiments. For the sake of the argument here, let's say I have three files E1.txt, ...
0
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2answers
130 views

How to retrieve adjusted values for a predictor variable in a linear model in R

Using R and ggplot, I would like to plot my output variable with one of my predictor variables adjusted for the other variables in the model. (I'm asking this question here, because I don't actually ...
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0answers
26 views

Creating a ‘bounding polygon’ for a set of points (preferably with GGplot2) [duplicate]

In R, Lets say that I have a set of x and y points, how can I get a geom_polygon to encapsulate all points, ie, what is the best way to create a 'bounding' polygon ...
3
votes
2answers
202 views

Comparing weights versus time graphically using reshape, vioplot, and ggplot2

I have a group of 200 children who came to clinic at months 0, 1, 2, 3, 6, 9, and 12 this year. At each clinic visit the children were weighed. ...
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0answers
507 views

Creating summary tables / graphics in R for categorical data [closed]

I am trying to summarise data from a household survey and as such most of my data is categorical (factor) data. I was looking to summarise it with plots of frequencies of responses to certain ...
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0answers
168 views

How build smoothed curve of incidence rates using subject data? [closed]

I have a dataset with subjects ($\text{data}_0$). Each subject has a follow up time ($\text{fuy}$), an indicator for incidence ($\text{ind} = 0/1$) and a variable which indicates, for example, year of ...
6
votes
4answers
2k views

Boxplot equivalent for heavy-tailed distributions?

For approximately normally distributed data, boxplots are a great way to quickly visualize the median and spread of the data, as well as the presence of any outliers. However for more heavy-tailed ...
1
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1answer
94 views

Plotting the gap between two times

I have a (large) dataset where I know, for each observation, the departure and the arrival time of a worker (between 0 and 24, in decimal) : ...
1
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1answer
2k views

US heatmap using zipcodes

We are attempting to create a US heatmap using only zipcode and corresponding values using R. While there are a number of examples that use lat and long data for creating such maps, is there one that ...
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0answers
127 views

Is LOESS the appropriate way of visualizing my RT data?

I am conducting a Lexical Decision Task where my dependent random variable is Response Time (RT). My experimental design consists of 5 blocks of a 100 trials each. In each block, 50% of trials ...