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feat: update random number generation function in triangular/logpdf #5266

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Merged
merged 9 commits into from
Mar 7, 2025
Merged

feat: update random number generation function in triangular/logpdf #5266

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b20e724
feat: add C implementation for triangular logpdf
0PrashantYadav0 Jan 9, 2025
a1280c4
chore: made changes as per code review
0PrashantYadav0 Jan 10, 2025
6e71faa
chore: apply suggestions from code review
Planeshifter Jan 19, 2025
ebf4636
chore: merge develop
0PrashantYadav0 Feb 17, 2025
8a85750
fix: changes in benchmarks
0PrashantYadav0 Feb 17, 2025
5223b20
chore: updated random generation function
0PrashantYadav0 Feb 17, 2025
57509b0
chore: update according to code review
0PrashantYadav0 Mar 1, 2025
ca56f54
fix: improve random number generation in triangular logpdf benchmark …
0PrashantYadav0 Mar 5, 2025
f2c1714
chore: changes in benchmark
0PrashantYadav0 Mar 5, 2025
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10 changes: 5 additions & 5 deletions lib/node_modules/@stdlib/stats/base/dists/triangular/logpdf/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -134,7 +134,7 @@ y = mylogpdf( 12.0 );
<!-- eslint no-undef: "error" -->

```javascript
var randu = require( '@stdlib/random/base/randu' );
var uniform = require( '@stdlib/random/base/uniform' );
var logpdf = require( '@stdlib/stats/base/dists/triangular/logpdf' );

var a;
Expand All @@ -145,10 +145,10 @@ var y;
var i;

for ( i = 0; i < 25; i++ ) {
x = randu() * 30.0;
a = randu() * 10.0;
b = a + (randu() * 40.0);
c = a + ((b-a) * randu());
x = uniform( 0.0, 30.0 );
a = uniform( 0.0, 10.0 );
b = uniform( a, a + 40.0 );
c = uniform( a, b );
y = logpdf( x, a, b, c );
console.log( 'x: %d, a: %d, b: %d, c: %d, ln(f(x;a,b,c)): %d', x.toFixed( 4 ), a.toFixed( 4 ), b.toFixed( 4 ), c.toFixed( 4 ), y.toFixed( 4 ) );
}
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20 changes: 12 additions & 8 deletions lib/node_modules/@stdlib/stats/base/dists/triangular/logpdf/benchmark/benchmark.js
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Expand Up @@ -21,7 +21,7 @@
// MODULES //

var bench = require( '@stdlib/bench' );
var randu = require( '@stdlib/random/base/randu' );
var uniform = require( '@stdlib/random/base/uniform' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var Float64Array = require( '@stdlib/array/float64' );
var EPS = require( '@stdlib/constants/float64/eps' );
Expand All @@ -45,12 +45,11 @@ bench( pkg, function benchmark( b ) {
min = new Float64Array( len );
max = new Float64Array( len );
mode = new Float64Array( len );

for ( i = 0; i < len; i++ ) {
x[ i ] = randu() * 30.0;
min[ i ] = randu() * 10.0;
max[ i ] = min[ i ] + ( randu() * 40.0 ) + EPS;
mode[ i ] = min[ i ] + ( ( max[ i ] - min[ i ] ) * randu() );
x[ i ] = uniform( 0.0, 30.0 );
min[ i ] = uniform( 0.0, 10.0 );
max[ i ] = uniform( min[ i ] + EPS, 40.0 + EPS + min[ i ] );
mode[ i ] = uniform( min[ i ], max[ i ] );
}

b.tic();
Expand All @@ -73,19 +72,24 @@ bench( pkg+':factory', function benchmark( b ) {
var mode;
var min;
var max;
var len;
var x;
var y;
var i;

len = 100;
min = -1.5;
max = 1.5;
mode = 0.5;
mylogpdf = logpdf.factory( min, max, mode );
x = new Float64Array( len );
for ( i = 0; i < len; i++ ) {
x[ i ] = uniform( -2.0, 2.0 );
}

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
x = ( randu()*2.0 ) - 2.0;
y = mylogpdf( x );
y = mylogpdf( x[ i%x.length ] );
if ( isnan( y ) ) {
b.fail( 'should not return NaN' );
}
Expand Down
11 changes: 5 additions & 6 deletions lib/node_modules/@stdlib/stats/base/dists/triangular/logpdf/benchmark/benchmark.native.js
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@
var resolve = require( 'path' ).resolve;
var bench = require( '@stdlib/bench' );
var Float64Array = require( '@stdlib/array/float64' );
var randu = require( '@stdlib/random/base/randu' );
var uniform = require( '@stdlib/random/base/uniform' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var tryRequire = require( '@stdlib/utils/try-require' );
var EPS = require( '@stdlib/constants/float64/eps' );
Expand Down Expand Up @@ -54,12 +54,11 @@ bench( pkg+'::native', opts, function benchmark( b ) {
min = new Float64Array( len );
max = new Float64Array( len );
mode = new Float64Array( len );

for ( i = 0; i < len; i++ ) {
x[ i ] = randu() * 30.0;
min[ i ] = randu() * 10.0;
max[ i ] = min[ i ] + ( randu() * 40.0 ) + EPS;
mode[ i ] = min[ i ] + ( ( max[ i ] - min[ i ] ) * randu() );
x[ i ] = uniform( 0.0, 30.0 );
min[ i ] = uniform( 0.0, 10.0 );
max[ i ] = uniform( min[ i ] + EPS, 40.0 + EPS + min[ i ] );
mode[ i ] = uniform( max[ i ], max[ i ] );
}

b.tic();
Expand Down
10 changes: 5 additions & 5 deletions lib/node_modules/@stdlib/stats/base/dists/triangular/logpdf/examples/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@

'use strict';

var randu = require( '@stdlib/random/base/randu' );
var uniform = require( '@stdlib/random/base/uniform' );
var logpdf = require( './../lib' );

var a;
Expand All @@ -29,10 +29,10 @@ var y;
var i;

for ( i = 0; i < 25; i++ ) {
x = randu() * 30.0;
a = randu() * 10.0;
b = a + (randu() * 40.0);
c = a + ((b-a) * randu());
x = uniform( 0.0, 30.0 );
a = uniform( 0.0, 10.0 );
b = uniform( a, a + 40.0 );
c = uniform( a, b );
y = logpdf( x, a, b, c );
console.log( 'x: %d, a: %d, b: %d, c: %d, ln(f(x;a,b,c)): %d', x.toFixed( 4 ), a.toFixed( 4 ), b.toFixed( 4 ), c.toFixed( 4 ), y.toFixed( 4 ) );
}