Generates frequency values from time-domain data.

Note: This item is deprecated and will be removed in a future release.

Syntax

y = Dfreq(vec)

Argument

Name

Description

vec

A vector of the time-domain data.

Output

Name

Description

y

A vector of the frequency points. It is of same length as vec.

Example

Given a vector data of time-domain signal, a vector of the frequency values is created.

Syntax

y = Dfreq(data)

Result

y is a vector of same length as data, consisting of the frequency values.

Comments

The resultant vector contains values that range from zero to twice the Nyquist frequency, and is suitable as a frequency axis companion for any of the frequency domain functions.  Dfreq assumes that vec is evenly sampled.

See Also:

DftImag

DftMag

DftPhase

DftReal

Idft

Fold

Freq