443 search results for "boxplot"

Looking to boxplots (Shootout 2012)

January 20, 2013
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Looking to boxplots (Shootout 2012)

Boxplots are a nice way to compare the three sample sets of the Shoot-out 2012 data files.There is a category variable (Set) in the data frame with the labels (Cal = Training Set, Test = Test Set and Val = Validation Set). # IMPORTING THE SAMPLE SETS #...

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Two tips: adding title for graph with multiple plots; add significance asterix onto a boxplot

June 28, 2012
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Two tips: adding title for graph with multiple plots; add significance asterix onto a boxplot

I've not added tips for a while. Here is it for today:1. How to add title for graph with multiple plots?par(mfrow=c(1,2),oma = c(0, 0, 2, 0))plot(1:10,  main="Plot 1")plot(1:100,  main="Plot 2")mtext("Title for Two Plots", outer = TRUE, cex =...

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about boxplot

June 15, 2012
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From Wiki:"... the bottom and top of the box are always the 25th and 75th percentile (the lower and upper quartiles, respectively), and the band near the middle of the box is always the 50th percentile (the median). But th...

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whisker of boxplot

June 15, 2012
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whisker of boxplot

From Wiki:"... the bottom and top of the box are always the 25th and 75th percentile (the lower and upper quartiles, respectively), and the band near the middle of the box is always the 50th percentile (the median). But the ends of the whiskers can represent several possible alternative values..."In R's default boxplot{graphics} code,upper whisker =...

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Boxplots and Day of Week Effects

March 4, 2012
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Boxplots and Day of Week Effects

THIS BLOG DOES NOT CONSTITUTE INVESTMENT ADVICE. ACTING ON IT WILL MOST LIKELY BE DETRIMENTAL TO YOUR FINANCIAL HEALTH.After following some R-related quant finance blogs like Timely Portfolio, Systematic Investor or Quantitative tho...

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Pattern Recognition: forward Boxplot Trajectories using R

July 28, 2011
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Pattern  Recognition: forward Boxplot Trajectories using R

Although the following discussion can apply to the Quantitative Candlestick Pattern Recognition series, it is addressing the same issue as any basic conditional type system -- how and when to exit.  The following is one way to visualize and think ...

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Boxplots without boxes

June 14, 2011
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Let’s say you have several categories with multiple data points each that you would like to plot as individual points. Even if you have only a single point, the R graphics package will plot a line (without a box for … Continue reading →

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Visualizing small-scale paired data – combining boxplots, stripcharts, and confidence-intervals in R

June 3, 2011
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Visualizing small-scale paired data – combining boxplots, stripcharts, and confidence-intervals in R

Sometimes when working with small paired data-sets it is nice to see/show all the data in a structured form. For example when looking at pre-post comparisons, connected dots are a natural way to visualize which data-points belong together. In R this can be easily be combined with boxplots expressing the overall distribution of the data.  This

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More fun with boxplots

May 19, 2011
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Here are a few more plotting options for boxplots: Let’s start plotting the full set plot(b$mod, b$x) Plot labels for a subset in full set plot (label all points x < -1) text(subset(b$mod, b$x < -1), subset(b$x, b$x < -1), … Continue reading →

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Violin and boxplots with lattice and R

Violin and boxplots with lattice and R

A violin plot is a combination of a boxplot and a kernel density plot. Lattice includes the panel.violin function for this graphical tool. This example draws a violin and a boxplot together. First, let’s download some solar radiation data from the NASA webpage: nasafile <- 'http://eosweb.larc.nasa.gov/sse/global/text/global_radiation' nasa <- read.table(file=nasafile, skip=13, header=TRUE) Now, I plot a

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