什么是箱型图

什么是箱型图
2024-11-04 18:55:48
推荐回答(2个)
回答1:

  箱形图
  ”盒式图”或叫”盒须图””箱形图”boxplot
  须图又称为箱形图,其绘制须使用常用的统计量,最适宜提供有关数据的位置和分散的参考,尤其在不同的母体数据时更可表现其差异
  常用的统计量 :平均数、中位数、百分位数、四分位数、全距、四分位距、变异数和标准差

  箱形图的绘制

  盒须图提供了一种只用5个点对数据集做简单的总结的方式。这5个点包括中点、Q1、Q3、分部状态的高位和低位。盒须图很形象的分为中心、延伸以及分部状态的全部范围
  盒式图中最重要的是对相关统计点的计算,相关统计点都可以通过百分位计算方法进行实现
  附: 统计学名词
  population 母体
  sample 样本
  census 普查
  sampling 抽样
  quantitative 量的
  qualitative/categorical 质的
  discrete 离散的
  continuous 连续的
  population parameters 母体参数
  sample statistics 样本统计量
  descriptive statistics 叙述统计学
  inferential/inductive
  statistics 推论/归纳统计学
  levels of measurement 衡量尺度
  nominal scale 名目尺度
  ordinal scale 顺序尺度
  interval scale 区间尺度
  ratio scale 比例尺度
  frequency distribution 次数分配
  relative frequency 相对次数
  range 全距
  class midpoint 组中点
  class limits 组限
  class boundaries 组界
  class width 组距
  cumulative frequency (以下) 累加次数
  decumulative frequency 以上累加次数
  histogram 直方图
  pie chart 饼图
  ogive 肩形图
  frequency polygon 多边形图
  cumulative frequency polygon 累加次数多边形图
  box plot 盒须图
  stem and leaf plot 枝叶图
  measures of central tendency 中央趋势量数
  mean 平均数
  median 中位数
  mode 众数
  location measures 位置量数
  percentile 百分位数
  quartile 四分位数
  decile 十分位数
  dispersion measures 分散量数
  range 全距
  interquartile-range IQR 四分位距
  mean absolute deviation 平均绝对离差
  variance 变异数
  standard deviation 标准差
  coefficient of variation 变异系数
  left-skewed 左偏
  negative-skewed 负偏
  right-skewed 右偏
  positive-skewed 正偏
  contingency table 列联表
  sampling distribution (of a statistic)(某个统计量的) 抽样分布 point estimate 点估计值
  point estimator 点估计式
  unbiased estimator 不偏点估计式
  efficient estimator 有效点估计式
  consistent estimator 一致点估计式
  confidence level 信赖水准
  confidence interval 信赖区间
  null hypothesis 虚无假设
  alternative hypothesis 对立假设
  left-tailed test 左尾检定
  right-tailed test 右尾检定
  two-tailed test 双尾检定
  test statistic 检定统计量
  critical value 临界值

回答2:

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