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matlab 字符串文件直方图统计字母个数

2011-05-24 17:31 447 查看
fp=fopen('gettysburg.txt');

G=lower(char(fread(fp))');

fclose(fp);

G(G==' ')=[];G(G==',')=[];G(G=='.')=[];

unique(G)

bar(histc(G,['-','a','b','c','d','e','f','g','h','i','k','l','m',...

'n','o','p','q','r','s','t','u','v','w','y']));

set(gca,'xtick',1:24,...

'xticklabel',{'-','a','b','c','d','e','f','g','h','i','k','l','m',...

'n','o','p','q','r','s','t','u','v','w','y'})
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