MATLAB COMPILER RELEASE NOTES Uživatelská příručka stáhnout pdf (Strana 136)

100

101

R2013b

4-2

Language and Programming

table data container for managing, sorting, and filtering mixed-type

tabular data

Tables and Categorical Arrays (6 min, 9 sec)

table is a new data type to collect mixed-type data and metadata properties, such as

variable names, row names, descriptions, and variable units, in a single container. Tables

are suitable for column-oriented or tabular data that is often stored as columns in a text

file or in a spreadsheet. For example, you can use a table to store experimental data, with

rows representing different observations and columns representing different measured

variables.

Tables consist of rows and column-oriented variables. Each variable (column) in a table

can have a different data type and a different size with the restriction that each variable

must have the same number of rows. For example,

T =

Gender Age Smoker BloodPressure

------ --- ------ ---------------

Smith 'M' 38 true 124 93

Johnson 'M' 43 false 109 77

Williams 'F' 38 false 125 83

Jones 'F' 40 false 117 75

Brown 'F' 49 false 122 80

For more information, see Tables.

categorical array for ordered and unordered categorical data

Tables and Categorical Arrays (6 min, 9 sec)

categorical is a data type to store data with values from a finite set of discrete

categories. A categorical array provides efficient storage and convenient manipulation

of nonnumeric data, while also maintaining meaningful names for the values. Ordinal

categorical arrays are a type of categorical array whose categories have a mathematical

order. For example,

myCategorical =

1 2 ... 131 132 133 134 135 136 137 138 139 140 141 ... 715 716

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