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strings

Create array of strings with no characters

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Syntax

Description

str = strings returns a string with no characters. For more information on string arrays, see Characters and Strings.

example

str = strings(n) returns an n-by-n array of strings with no characters.

example

str = strings(sz1,...,szN) returns a sz1-by-...-by-szN array of strings with no characters, where sz1,...,szN indicate the size of each dimension. For example, strings(2,3) returns a 2-by-3 array of strings.

example

str = strings(sz) returns an array of strings with no characters, where size vector sz defines size(str). For example, strings([2,3]) returns a 2-by-3 array of strings.

Examples

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Open Script
str = strings(4)

str = 

  4×4 string array

    ""    ""    ""    ""
    ""    ""    ""    ""
    ""    ""    ""    ""
    ""    ""    ""    ""
Open Script
str = strings([2,6])

str = 

  2×6 string array

    ""    ""    ""    ""    ""    ""
    ""    ""    ""    ""    ""    ""
Open Script

Create an array of empty strings that is the same size as an existing array.

A = [1 2 3; 4 5 6];
sz = size(A);
str = strings(sz)

str = 

  2×3 string array

    ""    ""    ""
    ""    ""    ""

It is a common pattern to combine the previous two lines of code into a single line:

str = strings(size(A));

You can use strings to preallocate the space required for a large string array.

Related Examples

Input Arguments

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Size of a square array, specified as a nonnegative integer.

  • If n is 0, then str is an empty array.

  • If n is negative, then strings treats n as 0.

Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64

Size of each dimension, specified as separate nonnegative integer arguments.

  • If the size of any dimension is 0, then str is an empty array.

  • If the size of any dimension is negative, then strings treats it as 0.

  • Beyond the second dimension, strings ignores trailing dimensions with a size of 1. For example, strings(3,1,1,1) produces a 3-by-1 vector of strings with no characters.

Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64

Size of each dimension, specified as a row vector of nonnegative integers. Each element of this vector indicates the size of the corresponding dimension:

  • If the size of any dimension is 0, then str is an empty array.

  • If the size of any dimension is negative, then strings treats it as 0.

  • Beyond the second dimension, strings ignores trailing dimensions with a size of 1. For example, strings([3,1,1,1]) produces a 3-by-1 vector of strings with no characters.

Example: sz = [2,3,4] creates a 2-by-3-by-4 array.

Data Types: double | single | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64

More About

See Also

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Introduced in R2016b

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