Maple Professional
Maple Academic
Maple Student Edition
Maple Personal Edition
Maple Player
Maple Player for iPad
MapleSim Professional
MapleSim Academic
Maple T.A. - Testing & Assessment
Maple T.A. MAA Placement Test Suite
Möbius - Online Courseware
Machine Design / Industrial Automation
Aerospace
Vehicle Engineering
Robotics
Power Industries
System Simulation and Analysis
Model development for HIL
Plant Modeling for Control Design
Robotics/Motion Control/Mechatronics
Other Application Areas
Mathematics Education
Engineering Education
High Schools & Two-Year Colleges
Testing & Assessment
Students
Financial Modeling
Operations Research
High Performance Computing
Physics
Live Webinars
Recorded Webinars
Upcoming Events
MaplePrimes
Maplesoft Blog
Maplesoft Membership
Maple Ambassador Program
MapleCloud
Technical Whitepapers
E-Mail Newsletters
Maple Books
Math Matters
Application Center
MapleSim Model Gallery
User Case Studies
Exploring Engineering Fundamentals
Teaching Concepts with Maple
Maplesoft Welcome Center
Teacher Resource Center
Student Help Center
stats[describe,quartile] - Quartiles of a Statistical List
Calling Sequence
stats[describe, quartile[which]](data, gap)
describe[quartile[which]](data, gap)
Parameters
data
-
statistical list
which
quartile required
gap
(optional, default=false) The common size of gaps between classes.
Description
Important: The stats package has been deprecated. Use the superseding package Statistics instead.
The function quartile of the subpackage stats[describe, ...] finds the item in data that corresponds to the quartile specified by which. If the requested quartile falls between entries, it is interpolated.
The values given by quartile can be thought of as 3 values that partition the data set, once sorted, into 4 data sets of equal weight.
Half of the difference between the third quartile and the first quartile is a measure of the dispersion of the data. This quantity is known as the semi-interquartile range and the quartile deviation. Refer to describe[standarddeviation] for more information about measures of the dispersion of data.
Missing data are ignored.
For information about the parameter gap, see describe[gaps].
The data must be numeric.
The command with(stats[describe],quartile) allows the use of the abbreviated form of this command.
Examples
To compute the quartiles, all at once
The semi-interquartile range is given by
See Also
describe(deprecated)[decile], describe(deprecated)[gaps], describe(deprecated)[median], describe(deprecated)[percentile], describe(deprecated)[quantile], describe(deprecated)[range], describe(deprecated)[standarddeviation], Statistics, Statistics[Quartile]
Download Help Document
