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width

Number of table variables

Syntax

Description

example

W = width(T) returns the number of variables in table T.

width(T) is equivalent to size(T,2).

Examples

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Create a table, T.

LastName = {'Smith';'Johnson';'Williams';'Jones';'Brown'};
Age = [38;43;38;40;49];
Height = [71;69;64;67;64];
Weight = [176;163;131;133;119];
BloodPressure = [124 93; 109 77; 125 83; 117 75; 122 80];

T = table(Age,Height,Weight,BloodPressure,'RowNames',LastName)
T = 

                Age    Height    Weight    BloodPressure
                ___    ______    ______    _____________

    Smith       38     71        176       124     93   
    Johnson     43     69        163       109     77   
    Williams    38     64        131       125     83   
    Jones       40     67        133       117     75   
    Brown       49     64        119       122     80   

Find the number of variables in table T.

W = width(T)
W =

     4

T contains 4 variables; width does not count the row names.

The variable BloodPressure counts as one variable even though it contains two columns.

Input Arguments

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Input table, specified as a table.

Variables in a table can have multiple columns, but width(T) only counts the number of variables.

More About

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Tall Array Support

This function fully supports tall arrays. For more information, see Tall Arrays.

See Also

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Introduced in R2013b

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