upper - Convert strings to uppercase - MATLAB (original) (raw)

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Convert strings to uppercase

Syntax

Description

newStr = upper([str](#bu55fwd-txt)) converts all lowercase characters in str to the corresponding uppercase characters and leaves all other characters unchanged.

Examples

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Convert a string array to contain uppercase characters.

str = ["The SOONER,";"the BETTER."]

str = 2×1 string "The SOONER," "the BETTER."

newStr = 2×1 string "THE SOONER," "THE BETTER."

Input Arguments

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Input array, specified as a string array, character array, or cell array of character vectors.

Tips

For character arrays, the upper function supports the character sets:

• PC: Windows® Latin-1
• Other: ISO® Latin-1 (ISO 8859-1)

For string arrays, the upper function supports Unicode®.

Extended Capabilities

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

Usage notes and limitations:

• Input array must be a string scalar or a character array.
• Input values must be in the range 0–127.

Version History

Introduced before R2006a