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Unformatted text preview: Relative Standing 7 of 12 40 50 60 70 Student heights (with Mini-Me) Box plots and distributions Modified box plot. Definition 1.8 Boxplot where whiskers have a maximum length of 1 . 5 IQR . Useful for identifying outliers. Box plot: boxplot(x) Where x is a vector of data. Plots a modified box plot. R Command Box plot by categories: boxplot(x c) Where x and c are ordered vectors of data. The vector c is a category for each data point in x . R Command Comparison of Box Plots to Histogram Anthony Tanbakuchi MAT167 8 of 12 1.2 Exploratory Data Analysis 50 100 150 200 Boxplot 50 100 150 200 Modified Boxplot Histogram of Bears$AGE ears$AGE Frequency 150 5 10 Anatomy of a Box Plot 50 100 150 200 Boxplot 50 100 150 200 Modified Boxplot max Q 3 median Q 2 min IQR Modifed boxplot limits max whisker length to 1.5xIQR, allowing outlier identifcation. outlier whisker box contains middle 50% oF data The box represents where the middle 50% of the data lies. The bottom of the box is Q1 and the top of the box is Q3. The height of the box is the IQR.the box is Q1 and the top of the box is Q3....
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This note was uploaded on 02/10/2012 for the course MAT 1670 taught by Professor Tanbakuchi during the Spring '11 term at University of Florida.
- Spring '11