Documentation

This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English verison of the page.

Note: This page has been translated by MathWorks. Please click here
To view all translated materals including this page, select Japan from the country navigator on the bottom of this page.

lower

Convert string to lowercase

Syntax

newTxt = lower(txt)

Description

example

newTxt = lower(txt) converts all uppercase characters in txt to the corresponding lowercase characters and leaves all other characters unchanged.

Examples

collapse all

txt = 'Hello, World.';
newTxt = lower(txt)
newTxt = 
'hello, world.'

Starting in R2017a, you can create string arrays using double quotes instead of the string function.

Convert a string array to contain lowercase characters.

txt = ["The SOONER,";"the BETTER."]
txt = 2x1 string array
    "The SOONER,"
    "the BETTER."

newTxt = lower(txt)
newTxt = 2x1 string array
    "the sooner,"
    "the better."

Text processing functions, such as strfind and regexp, accept string arrays as inputs. Other functions, such as addpath, do not.

Input Arguments

collapse all

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

Example:

Data Types: string | char | cell

Tips

For character arrays, the lower function supports only the character sets:

  • PC: Windows® Latin-1

  • Other: ISO® Latin-1 (ISO 8859-1)

For string arrays, the lower function supports Unicode®.

Extended Capabilities

Introduced before R2006a

Was this topic helpful?