<< time

Time functions

toc >>

---

timeit

---

Measure time required to run function.

---

Syntax

---

t = timeit(f)

t = timeit(f, nLhs)

t = timeit(f, nLhs, x1, ..., xm)

Input argument

---

f

Function handle: Function to run.

nLhs

integer value: number of output arguments. (1: default)

x1, ..., xm

Input arguments, specified as a comma-separated list of variables or expressions.

Output argument

---

t

time (in seconds).

Description

---

t = timeit(f) measures the time elapsed required to run the function specified by the function handle f.

To perform a robust measurement, timeit calls function multiple times and returns the median of the measurements.

If the function runs fast, timeit might call the function many times.

Examples

---

f = str2func('@()sleep(6)');
tic();t = timeit(f), toc()

X = rand(100);
f = str2func('@(X) svd(X);');
tic(), t1 = timeit(f, 1, X), toc()
tic(), t2 = timeit(f, 3, X), toc()

See also

---

tic.

History

---

Version	Description
1.0.0	initial version

Author

---

Allan CORNET