[one-half-first]
[/one-half-first]
[one-half]使用径向或圆形直方图来显示循环数据，这涉及通常直方图围绕圆圈的缠绕。直方图中的每个小节居中在小组周期的中间，小节的长度与小组中的频率成正比。[/one-half]
例子
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[one-fourth]
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[one-fourth]
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[one-fourth-first]
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[one-fourth]
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[one-fourth]
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[one-fourth]
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