Programmer Guide/Command Reference/EVAL/zcross: Difference between revisions
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Revision as of 17:31, 18 November 2010
Contents
zcross
Usage:
zcross(x [, type=0 {0..3}, xmin=0, srate=1])
Parameters:
- type
- The type of result to return (see Result)
- xmin
- The minimum x value.
- srate
- The sampling rate.
Result:
Returns a scalar:
If type=0, the number of zero-crossings.
If type=1, the density of zero-crossings (number of zero-crossings / seconds).
If type=2, the frequency of zero-crossing (density / 2).
If type=3, the period length (1 / frequency = 2 / density).
Description:
Count the number of zero-crossings in the vector x. This is a subcommand of the EVAL command.
