EDA: Stem and Leaf Diagrams And Boxplots Flashcards
An EDA figure that displays a distribution of data
Stem-and-Leaf Diagram
A method and philosophy of data analysis begun by John Tukey which is designed to uncover information in data without interference of outlying values.
Exploratory Data Analysis
An EDA property in which a calculation is not highly affected by outlying data values
Resistance
A stem-and-leaf diagram in which the leaves of each stem are shown on one line.
One-Line Summary
A stem-and-leaf diagram in which the leaves of each stem are shown on two lines. The symbols * and . are used for stems 0-4 and 5-9, respectively
Two-line summary
A stem-and-leaf diagram in which the leaves of each stem are shown on five lines. The symbols *,t,f,s, and . are used for stems 0 and 1, 2 and 3, 4 and 5, 6 and 7, 8 and 9, respectively.
Five-line Summary
An EDA schematic diagram comprised of a box and two lines that show the distribution of data.
Box plot
An EDA term to denote how far a number is in from the highest or lowest number in a batch of data. The greatest depth is the median.
Depth of a number
An observation that is numerically distant from the rest of the data
Outlier
Two stem-and-leaf diagrams placed next to each other that use a common set of stems.
Side-by-side Stem-and-Leaf Diagram
An EDA principle in which the display of data is aided by the use of nonlinear transformations, such as a logarithm or square root.
Re-expression
The difference between a measurement and the value of the measurement that is predicted by some mathematical model
Residuals
The primary goal of EDA in which one can see information carried by one’s data
Revelation
An image that communicates information without words
Glyph
An average that is the middle number in an ordered set of data. The median has half the data below it and half above it.
Median
