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Change floatvar to float casting (up to 6 times faster)

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This commit is contained in:
Arkadiusz Kondas 2016-12-06 08:52:33 +01:00
parent d00b7e5668
commit 9764890ccb
2 changed files with 2 additions and 2 deletions
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2
src/Phpml/FeatureExtraction/TfIdfTransformer.php
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@ -32,7 +32,7 @@ class TfIdfTransformer implements Transformer
$count = count($samples); $count = count($samples);
foreach ($this->idf as &$value) { foreach ($this->idf as &$value) {
$value = log(floatval($count / $value), 10.0); $value = log((float)($count / $value), 10.0);
} }
} }

2
src/Phpml/Preprocessing/Normalizer.php
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@ -78,7 +78,7 @@ class Normalizer implements Preprocessor
foreach ($sample as $feature) { foreach ($sample as $feature) {
$norm2 += $feature * $feature; $norm2 += $feature * $feature;
} }
$norm2 = sqrt(floatval($norm2)); $norm2 = sqrt((float)$norm2);
if (0 == $norm2) { if (0 == $norm2) {
$sample = array_fill(0, count($sample), 1); $sample = array_fill(0, count($sample), 1);