A graphical display to summarize the distribution of a sample. It displays five numbers plus (possibly) some outliers - those five points being the median, hinges (approximate quartiles), and the largest and smallest value not counting any points marked as outliers.

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Boxplots with percentiles instead of hinges [duplicate]

I am new to R and am working with a dataset refined of 254 datapoints that are in 12 different groups and would like to compare the parameters with boxplots between ...
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1answer
58 views

Box plot with just two values does not have its whiskers in R

Are boxplots by default unable to produce the whiskers when there are just 2 values being input? I am working with dataset rufi and the values input are ...
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10 views

drawing histogram and boxplot in SAS [migrated]

I wrote the following code in sas, but I did not get result! The result histogram in grey and the range of data is not as I specified! what is the problem? I got the following warning too: WARNING: ...
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3answers
93 views

What is “the shortest half of the data”?

Here is a histogram (realized with JMP) displaying two types of box plot called outlier box plot and quantile box plot. Right below, there are a bunch of explanations of the meaning of the ...
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0answers
63 views

Boxplots with lognormally distributed data

Context Environmental data (e.g., pollutant concentrations in water, soil, air) are often lognormally distributed. Even when they are not, we tend to assume that they are (for better or worse). ...
3
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2answers
75 views

Best way to compare distributions with spikes

Following this question, I am interested on the best way to display four distributions with spikes. Indeed, I have four distributions with circa 75% of elements in it at the maximum value (1). I am ...
5
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1answer
185 views

How to transform an accuracy distribution for a violin plot

I am trying to find the best way to visualize different distributions of accuracy. Accuracy here is a value in the interval [0,1], 0 meaning not accurate, 1 maximum accuracy. I have different methods ...
2
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1answer
86 views

Alternatives to box plots for comparing clustering results

In my research paper, I wish to compare the accuracy of 2 clustering algorithms. I have conducted clustering using these 2 algortihms on 300 proprietary datasets. I use adjusted rand index as the ...
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3answers
3k views

How to assess skewness from a boxplot?

How to decide skewness by looking at a boxplot built from this data: 340, 300, 520, 340, 320, 290, 260, 330 One book says, "If the lower quartile is farther from the median than the upper quartile, ...
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3answers
819 views

Is visual inspection the only way to compare large datasets?

I have two large data sets, in fact, one of them is even much larger than the other. Visually, there doesn't seem to be that much difference between them: The actual data underlying the box plot ...
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1answer
150 views

Reproduce boxplot with only data points at given quantiles

It is trivial to create a boxplot in R with a full dataset. However, with limited access to the whole dataset, I just have 5 data point at min, 25%, 50% ,75%, and max. So is there any easy way to ...
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3answers
1k views

Deduce variance from boxplot

I was wondering how to deduce the variance of a variable using a boxplot. Is it at least possible to deduce if two variables have the same variance observing their boxplot?
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0answers
70 views

Visualizing many left-skewed distributions

I have a series of left-skewed/heavy tailed distributions that I would like to show. There are 42 distributions across three factors (labeled as A, ...
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1answer
83 views

statsmodels: error in kde on a list of repeated values

I am using Python's statsmodels module to plot a violin/bean plot of some data. I get the error "LinAlgError: singular matrix" in the KDE calculation whenever a single violin plot is drawn from a list ...
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0answers
54 views

beanplots: plus sign?

I would like to draw bean plots using the statsmodel package for Python. In the example provided on the documentation, I see a red plus sign in each beanplot: What does it represent?
3
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1answer
130 views

Interpreting box plots with one whisker [duplicate]

I have done a boxplot to represent my claim frequency. However make 2 and 4 have only 1 whisker. How do I interpret that?
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2answers
1k views

“When to use boxplot and when barplot” rules (of thumb?)

Both box-and-whisker plot and bar chart are appropriate graphics for ANOVA according to The R Book (Crawley, 2013), but which is more appropriate? I suppose it depends on situation... can anybody help ...
2
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0answers
39 views

Calculating boxplots with imputed data

I have imputed a dataset which has over 200 variables, and 20 observations. In worst case, 80% of the data is missing, in the best case 100% is available. 5 out of the 20 participants provided data ...
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0answers
30 views

Combining Box Plot with frequency count [duplicate]

Are there graphing techniques (certain kinds of plots) that are similar to the Edward Tufte's box plots - shown below - but that consider the distribution of the data points? But instead of a black ...
5
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1answer
301 views

Pairwise comparisons for a regression with sandwich estimates (in R)

The question in short I run a robust regression in R and made a boxplot with only one of the predictor variable grouping the response variable. On this boxplot I'd like to add some information about ...
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54 views

How to check the assumption of equal error variance might be violated?

I want use this box plot to check it. Thank you
3
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1answer
209 views

Explaining a boxplot and providing a reference in a technical paper

I am writing a CS paper, I usually would assume anyone knows what a boxplot is in a technical domain. Is a reference required or are boxplots knowledge that can be assumed? What is essential to ...
4
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3answers
232 views

Making box plots when analyzing a case with 3 predictor variables?

When there are 3 predictor variables to consider, what is the correct procedure? Do we make box plots for all the possible 2 combinations or is there a way to compare 3 variables? Sorry if this is a ...
2
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1answer
2k views

Boxplot interpretation: is it correct that a boxplot is missing a whisker?

I have a data set that has customerID and daily visits. This dataset records the number of times customers visited the site in a day. ...
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1answer
93 views

Graphic representation of data

I conducted exploratory analysis of my data and got Mean and standard deviation values from the original data and plotted the data using boxplots. I conducted regression models (GLM and GLMM) on the ...
3
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2answers
156 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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7answers
791 views

Software to produce confidence interval error bars from summary statistics without access to the original data

A bit like a box plot. I mean not necessarily the standard upper confidence interval, lower confidence interval, mean, and data range-showing box plots but I mean like a box plot with just the three ...
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150 views
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1answer
2k views

Negative inner fence value in a box and whiskers plot?

I calculated a negative lower inner fence value. I've double checked my work but I can't figure out what's wrong. I was under the impression that these values couldn't be outside of the min and max ...
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1answer
219 views

Multiline names (x labels) in boxplot [closed]

In R, I would like to give multiline names to some data sets in boxplot, like this: ...
3
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0answers
31 views

Application to a real life problem: identifying outliers in univariate time series data [duplicate]

I have a rather simple problem that I'm having trouble deciding an answer upon. As a student studying Statistics I'm very familiar with terminology and theory but I suppose I'm stumped on my first ...
3
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1answer
412 views

Assumptions of Mann-Whitney U-test

I have 2 samples, which I got by conducting a 5-point Likert scale survey. I have 9 results for group A and 17 results for group B for 12 variables. I would like to test now if the groups differ ...
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2answers
234 views

Re-check boxplot after outlier removal

I have a sample of 608 subjects and I need to remove outliers for age. In R, the boxplot appears like this: It shows 74 outliers: ...
3
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1answer
420 views

Statistical grounding for difference between median as a proportion of overall visible spread

I'm helping someone with prep for their stats assessment and they are being instructed to use the following to make an informal inference about the population: I was wondering if there is any ...
5
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2answers
999 views

Interpreting weird box plot with reversed whiskers

Although I'm fairly new to box plots, I thought I had got the hang of them, until I came upon this one today. I don't know what to make of that bottom "whisker" drawn inside the box. This ...
4
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1answer
105 views

Understanding the whiskers of a boxplot

I have a question regarding the interpretation of the whiskers of a boxplot. I have read the following: "On the top and bottom of the rectangle, the “whiskers” show the range of 1.5 times the distance ...
4
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2answers
496 views

How to interpret a box plot?

I have some data in which there are 5 categorical explanatory variables (concern, breath, weath, sleep, act) and 1 continuous response variable (...
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1answer
1k views

Outliers for boxplot

If I have a set of data and I want to display it as a boxplot, when there are some outliers in the boxplot, we indicate outliers with a *. If there are two outliers ...
2
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1answer
1k views

What is a 'bagplot', or 'bivariate boxplot'?

I've found a paper which introduces the multidimensional (bivariate here) version of the boxplot - a bagplot. What is that bagplot exactly? I can see the series of nested polygons based on vertices, ...
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2answers
663 views

Equivalent of a boxplot for normally distributed data?

If I plot some data in function of a categorical variable in R, I get the standard boxplot. However, the boxplot displays non-parametric statistics (quantiles) that don't seem appropriate for normally ...
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0answers
1k views

How do I create a categorical scatterplot in R like boxplots? [closed]

Does anyone know how to create a scatterplot in R to create plots like these in PRISM's graphpad: ...
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0answers
344 views

How to establish relationships using box plots?

I am examining the relationship between a categorical variable and a quantitative one. For the test of linearity, I was told that I must use scatter plots. However, this is no longer applicable if one ...
6
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2answers
285 views

Making boxplots of hourly data in R

I have air temperature measurements from two fixed locations measured at hourly intervals. The code below is a random set of numbers used to represent the format of my data: ...
6
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3answers
317 views

What distribution can be closely (or precisely) fit to the “5 number summary” statistics?

I'm programming a web tool (="I'm a stats ignoramous who drifted here from stackoverflow.com") that allows scientists to enter predictions about the 5-number-summary stats for a variable. Entry is ...
1
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1answer
139 views

boxplot : computed values combined with raw data

Given computed values for a box plot (min, lq, median, uq, max) and original raw data size is it possible to merge that with raw data. given: ...
4
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2answers
1k views

Wondering what this bean plot analysis chart means

How does one interpret and generate bean plot charts. Here is one example taken from Walkes et al. 2010. What kind of data is it most useful for?
1
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1answer
580 views

How to draw a side-by-side plot mentioned in “Graphical Display as an Aid to Analysis”

Emerson, J. D. (1991) Graphical Display as an Aid to Analysis, in Fundamentals of Exploratory Analysis of Variance (eds D. C. Hoaglin, F. Mosteller and J. W. Tukey), John Wiley & Sons, Inc., ...
5
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3answers
4k views

How can I draw a boxplot without boxes in R?

Using R, I'd like to plot two boxplots without the boxes—just the points. Creating clean boxplots in R is trivial: ...
6
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1answer
3k views

Highlighting significant results from non-parametric multiple comparisons on boxplots

I have box plots of 13 groups that I show in one plot. The groups have unbalanced populations and are not normally distributed. I want to show which pairs are statistically similar (i.e., have ...
4
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1answer
1k views

Creating a plot with boxplots ranked by quantiles in R

I am trying to create a plot in R which gives me boxplots (and/or distributions) of one column ranked by quantiles (and/or equally spaced groups) of another column in a dataframe. An example would be ...