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Árvores de palavras

Visão geral
Um exemplo simples
Árvores de palavras implícitas e explícitas
Tamanho do texto da árvore de palavras
Prefixo, sufixo e árvores de palavras duplas
Como definir o estilo de árvores de palavras
Como tokenizar frases
Carregando
Formato de dados
Opções de configuração
Métodos
Eventos
Política de dados

Visão geral

Uma árvore de palavras representa várias sequências paralelas de palavras. Ele pode ser usado para mostrar quais palavras costumam seguir ou preceder uma palavra de destino (por exemplo, "Gatos são...") ou para mostrar uma hierarquia de termos (por exemplo, uma árvore de decisão).

As árvores de palavras do Google são capazes de processar grandes quantidades de texto rapidamente. Os sistemas modernos precisam ser capazes de lidar com grandes quantidades de texto sem atraso significativo.

Observação: a árvore de palavras está na versão Beta e pode estar sendo submetida a revisões substanciais em versões futuras dos Gráficos Google.

As árvores de palavras são renderizadas no navegador usando SVG, o que significa que funcionam em todos os navegadores modernos (por exemplo, Chrome, Firefox, Opera e Internet Explorer 9 ou versões mais recentes. Como todos os gráficos do Google, as árvores de palavras exibem dicas quando o usuário passa o cursor sobre os dados.

Um exemplo simples

Suponha que você tenha coletado um conjunto de frases sobre gatos (por exemplo, "gatos comem ratos", "gatos são melhores que gatinhos") e você quer destacar os atributos mais importantes do conjunto.

function drawChart() {
        var data = google.visualization.arrayToDataTable(
          [ ['Phrases'],
            ['cats are better than dogs'],
            ['cats eat kibble'],
            ['cats are better than hamsters'],
            ['cats are awesome'],
            ['cats are people too'],
            ['cats eat mice'],
            ['cats meowing'],
            ['cats in the cradle'],
            ['cats eat mice'],
            ['cats in the cradle lyrics'],
            ['cats eat kibble'],
            ['cats for adoption'],
            ['cats are family'],
            ['cats eat mice'],
            ['cats are better than kittens'],
            ['cats are evil'],
            ['cats are weird'],
            ['cats eat mice'],
          ]
        );

var options = {
          wordtree: {
            format: 'implicit',
            word: 'cats'
          }
        };

var chart = new google.visualization.WordTree(document.getElementById('wordtree_basic'));
        chart.draw(data, options);
      }
    </script>
  </head>
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    <div id="wordtree_basic" style="width: 900px; height: 500px;"></div>

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