diamonds数据集内容

Prices of 50,000 round cut diamonds

Description

A dataset containing the prices and other attributes of almost 54,000 diamonds. The variables are as follows:

Usage

diamonds
Format

A data frame with 53940 rows and 10 variables:

price
price in US dollars ($326–$18,823)

carat
weight of the diamond (0.2–5.01)

cut
quality of the cut (Fair, Good, Very Good, Premium, Ideal)

color
diamond colour, from J (worst) to D (best)

clarity
a measurement of how clear the diamond is (I1 (worst), SI2, SI1, VS2, VS1, VVS2, VVS1, IF (best))

x
length in mm (0–10.74)

y
width in mm (0–58.9)

z
depth in mm (0–31.8)

depth
total depth percentage = z / mean(x, y) = 2 * z / (x + y) (43–79)

table
width of top of diamond relative to widest point (43–95)

翻译

价格为50,000颗圆形切割钻石

描述

包含近54,000颗钻石的价格和其他属性的数据集。 变量如下:

用法

钻石
格式

一个包含53940行和10个变量的数据框:

价格
以美元计价(\ 18,823)

克拉
钻石重量(0.2-5.01)

切割
切割质量(公平,良好,非常好,高级,理想)

颜色
钻石颜色,从J(最差)到D(最好)

净度
测量钻石的清晰度(I1(最差),SI2,SI1,VS2,VS1,VVS2,VVS1,IF(最佳))

X
长度mm(0-10.74)

ÿ
宽度mm(0-58.9)

ž
深度mm(0-31.8)

深度
总深度百分比= z /平均值(x,y)= 2 * z /(x + y)(43-79)


钻石顶部宽度相对于最宽点(43-95)

钻石的切割比例详解可乐阿朝新浪博客 http://blog.sina.com.cn/s/blog_695cce3f0100uwt9.html
钻石切工:分级量表和选购指南|Blue Nile https://www.bluenile.com/cn/education/diamonds/cut?click_id=203093518

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(3)钻石切工分级的标准

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钻石的切割比例详解

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