Data Type Conversion

Converting between numeric arrays, character arrays, cell arrays, structures, or tables

Functions

charCharacter array
cellstrConvert to cell array of character vectors
int2strConvert integers to characters
mat2strConvert matrix to characters
num2strConvert numbers to character array
str2doubleConvert strings to double precision values
str2numConvert character array or string to numeric array
native2unicodeConvert numeric bytes to Unicode character representation
unicode2nativeConvert Unicode character representation to numeric bytes
base2decConvert text representing number in base N to decimal number
bin2decConvert text representation of binary number to decimal number
dec2baseConvert decimal number to character array representing base-N number
dec2binConvert decimal number to character array representing binary number
dec2hexConvert decimal number to character array representing hexadecimal number
hex2decConvert text representation of hexadecimal number to decimal number
hex2numConvert IEEE hexadecimal format to double-precision number
num2hexConvert single- and double-precision numbers to IEEE hexadecimal format
table2arrayConvert table to homogeneous array
table2cellConvert table to cell array
table2structConvert table to structure array
array2tableConvert homogeneous array to table
cell2tableConvert cell array to table
struct2tableConvert structure array to table
cell2matConvert cell array to ordinary array of the underlying data type
cell2structConvert cell array to structure array
mat2cellConvert array to cell array whose cells contain subarrays
num2cellConvert array to cell array with consistently sized cells
struct2cellConvert structure to cell array

Topics

Convert Text to Numeric Values

Convert text to arrays of numeric values. Text can represent floating-point values, dates and times, and hexadecimal and binary numbers. If text represents dates and times, then you can convert the text to datetime or duration values.

Convert Numeric Values to Text

Convert numeric values to text. Text can represent floating-point values with or without exponential notation, dates and times, or hexadecimal or binary digits.

Unicode and ASCII Values

MATLAB® stores all characters as Unicode characters. Both strings and character vectors use the same encoding. You can convert characters to their Unicode code values, and numbers to characters.

Hexadecimal and Binary Values

Specify hexadecimal and binary values either as literals or as text. Hexadecimal and binary literals are stored as integers. You can convert text representing hexadecimal and binary values to numbers, and numbers to text representations.

Convert Between Datetime Arrays, Numbers, and Text

While datetime is the recommended data type for representing points in time, you might need to work with dates and time stored as date strings, date vectors, and serial date numbers.

Convert Text in Table Variables to Categorical

This example shows how to convert a variable in a table from a cell array of character vectors to a categorical array.

Valid Combinations of Unlike Classes

If you include elements of unlike classes in a matrix, MATLAB converts some elements so that all elements of the resulting matrix are of the same type. Data type conversion is done with respect to a preset precedence of classes.