incrminabs

Compute a minimum absolute value incrementally.

Installation

npm install @stdlib/stats-incr-minabs

Usage

var incrminabs = require( '@stdlib/stats-incr-minabs' );

incrminabs()

Returns an accumulator function which incrementally computes a minimum absolute value.

var accumulator = incrminabs();

accumulator( [x] )

If provided an input value x, the accumulator function returns an updated minimum absolute value. If not provided an input value x, the accumulator function returns the current minimum absolute value.

var accumulator = incrminabs();

var min = accumulator( 2.0 );
// returns 2.0

min = accumulator( 1.0 );
// returns 1.0

min = accumulator( -3.0 );
// returns 1.0

min = accumulator();
// returns 1.0

Notes

• Input values are not type checked. If provided NaN, the accumulated value is NaN for all future invocations. If non-numeric inputs are possible, you are advised to type check and handle accordingly before passing the value to the accumulator function.

Examples

var randu = require( '@stdlib/random-base-randu' );
var incrminabs = require( '@stdlib/stats-incr-minabs' );

var accumulator;
var v;
var i;

// Initialize an accumulator:
accumulator = incrminabs();

// For each simulated datum, update the minimum absolute value...
for ( i = 0; i < 100; i++ ) {
    v = ( randu()*100.0 ) - 50.0;
    accumulator( v );
}
console.log( accumulator() );

See Also

• @stdlib/stats-incr/maxabs: compute a maximum absolute value incrementally.
• @stdlib/stats-incr/min: compute a minimum value incrementally.
• @stdlib/stats-incr/mminabs: compute a moving minimum absolute value incrementally.

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.