A histogram is a chart that groups numeric data into bins, displaying the bins as segmented columns. They're used to depict the distribution of a dataset: how often values fall into ranges.
Google Charts automatically chooses the number of bins for you. All bins are equal width and have a height proportional to the number of data points in the bin. In other respects, histograms are similar to column charts.
<?php require_once "../../../../koolreport/core/autoload.php"; \koolreport\widgets\google\Histogram::create(array( "dataSource"=>[ ['Dinosaur', 'Length'], ['Acrocanthosaurus (top-spined lizard)', 12.2], ['Albertosaurus (Alberta lizard)', 9.1], ['Allosaurus (other lizard)', 12.2], ['Apatosaurus (deceptive lizard)', 22.9], ['Archaeopteryx (ancient wing)', 0.9], ['Argentinosaurus (Argentina lizard)', 36.6], ['Baryonyx (heavy claws)', 9.1], ['Brachiosaurus (arm lizard)', 30.5], ['Ceratosaurus (horned lizard)', 6.1], ['Coelophysis (hollow form)', 2.7], ['Compsognathus (elegant jaw)', 0.9], ['Deinonychus (terrible claw)', 2.7], ['Diplodocus (double beam)', 27.1], ['Dromicelomimus (emu mimic)', 3.4], ['Gallimimus (fowl mimic)', 5.5], ['Mamenchisaurus (Mamenchi lizard)', 21.0], ['Megalosaurus (big lizard)', 7.9], ['Microvenator (small hunter)', 1.2], ['Ornithomimus (bird mimic)', 4.6], ['Oviraptor (egg robber)', 1.5], ['Plateosaurus (flat lizard)', 7.9], ['Sauronithoides (narrow-clawed lizard)', 2.0], ['Seismosaurus (tremor lizard)', 45.7], ['Spinosaurus (spiny lizard)', 12.2], ['Supersaurus (super lizard)', 30.5], ['Tyrannosaurus (tyrant lizard)', 15.2], ['Ultrasaurus (ultra lizard)', 30.5], ['Velociraptor (swift robber)', 1.8] ], "title"=>"Lengths of dinosaurs, in meters", "options"=>array( "legend"=>["position"=>"none"] ) ));
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