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Drzewa słowne

Przegląd
Prosty przykład
Drzewa pośrednie i jednoznaczne
Rozmiar tekstu drzewa słów
Prefiks, sufiks i podwójne drzewa słów
Stylowanie drzew słów
Tokenizacja zdań
Wczytuję
Format danych
Opcje konfiguracji
Metody
Zdarzenia
Zasady dotyczące danych

Omówienie

Drzewo słów reprezentuje kilka równoległych sekwencji słów. Można go użyć, aby pokazać, które słowa występują najczęściej po słowie docelowym lub na początku (np. „Koty są...” lub pokazać hierarchię haseł (np. drzewo decyzyjne).

Drzewa słów Google są w stanie szybko przetworzyć dużą ilość tekstu. Nowoczesne systemy powinny obsługiwać nowe ilości tekstu bez znacznego opóźnienia.

Uwaga: słowo „drzewo” jest w wersji beta i może w znacznym stopniu zostać objęte kolejnymi wersjami Map Google.

Drzewa słów są renderowane w przeglądarce za pomocą SVG, co oznacza, że działa we wszystkich nowoczesnych przeglądarkach (np. Chrome, Firefox, Opera i Internet Explorer w wersji 9 lub nowszej. Gdy użytkownik najedzie kursorem na dane, drzewo słów wyświetla się w formie etykiet, podobnie jak w przypadku wszystkich wykresów Google.

Prosty przykład

Załóżmy, że zebraliśmy zbiór wyrażeń dotyczących kotów (np. „koty jedzą”, „koty są lepsze od kotów”) i chcesz podkreślić najważniejsze atrybuty z zestawu.

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>
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    <div id="wordtree_basic" style="width: 900px; height: 500px;"></div>

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