Scripting Guide • Data Structures
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Data Structures
Working with Collections of Data
JSL provides these basic data structures that can hold a variety of data in a single variable:
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A list holds a number of other values, including nested lists and expressions.
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A matrix is a row-by-column table of numbers.
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An associative array maps keys to values, which can be almost any other type of data.
Contents 
Lists
Evaluate Lists
Assignments with Lists
Perform Operations in Lists
Find the Number of Items in a List
Subscripts
Locate Items in a List
List Operators and Functions
Iterate through a List
Concatenate Lists
Insert a Nested List in an Existing List
Index into a List with Another List
Send Messages to Lists
Matrices
Construct Matrices
Subscripts
Inquiry Functions
Comparisons, Range Checks, and Logical Operators
Numeric Operations
Concatenation
Transpose
Indexing into a Matrix or List with Another Matrix or List
Matrices and Data Tables
Matrices and Reports
Loc Functions
Ranking and Sorting
Special Matrices
Inverse Matrices and Linear Systems
Decompositions and Normalizations
Build Your Own Matrix Functions
Statistical Examples
Associative Arrays
Create Associative Arrays
Work with Associative Arrays
Applications for Associative Arrays
Associative Arrays in Graph Theory
Associative Arrays in Set Operations

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Help created on 7/12/2018