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convert

Convert numeric array from one unit into another

Since R2021b

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Syntax

A2 = convert(A1,unit1,unit2)
A2 = convert(A1,unit1,unit2,conversiontype)

Description

A2 = convert(A1,unit1,unit2) converts a numeric array, A1, from unit1 to unit2 by applying the appropriate scaling factor to the numeric values. unit1 and unit2 must be commensurate.

example

A2 = convert(A1,unit1,unit2,conversiontype) lets you select whether to apply affine or linear conversion to thermal units. Affine conversion is the default.

example

Examples

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Create a unit object: 

u1 = simscape.Unit("m")
U1 = 

    m

Create another unit object, commensurate with the first: 

U2 = simscape.Unit("mm")
U2 = 

    mm

Convert a numeric array from meters to millimeters: 

convert([10 20 30], u1, u2)
ans =

       10000       20000       30000

Create a simscape.Unit object representing degrees Celsius: 

u1 = simscape.Unit("degC")
u1 = 

    degC

Create another simscape.Unit object representing degrees Fahrenheit: 

u2 = simscape.Unit("degF")
u2 = 

    degF

Convert temperatures from Celsius to Fahrenheit using affine conversion:

 convert([0 37 100], u1, u2, 'affine')
ans =

   32.0000   98.6000  212.0000

Convert the same temperatures using linear conversion:

 convert([0 37 100], u1, u2, 'linear')
ans =

    0   66.6000  180.0000

Input Arguments

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Array of numeric values, specified as a scalar, vector, or matrix. The array cannot contain complex values and cannot be sparse.

Example: [1.5 2]

Data Types: double | single

Physical unit expression, specified as a scalar simscape.Unit object.

Example: m

Physical unit expression, specified as a scalar simscape.Unit object. unit1 and unit2 must be commensurate.

Example: mm

Thermal units often require an affine conversion, that is, a conversion that performs both multiplication and addition. For more information, see About Affine Units. Specify the type of conversion:

  • 'affine' — Perform unit conversion that uses both multiplication and addition.

  • 'linear' — Perform unit conversion by applying just the linear term.

Data Types: char | string

Output Arguments

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Array of numeric values, returned as a scalar, vector, or matrix in the same data type as the input array A1, with numeric values scaled according to the conversion factor between the two units, unit1 and unit2.

Example: [1500 2000]

Data Types: double | single

Version History

Introduced in R2021b

See Also

Topics