27 commercially available coffee samples of different origins.
27市售的咖啡样品的不同来源。
用法----------Usage----------
data(coffee)
格式----------Format----------
A data frame with 27 observations on the following 4 variables.
27个观察以下4个变量的数据框。
Metpyr Hydroxy-2-propanone
Metpyr羟基-2 - 丙酮
5-Met methylpyrazine
5-Met甲基吡嗪
furfu methylfurfural
furfu甲基糠醛
sort a character vector
sort字符向量
Details
详细信息----------Details----------
In the original data set, 15 volatile compounds (descriptors of coffee aroma) were selected for a statistical analysis. We selected only three compounds (compositional parts) Hydroxy-2-propanone, methylpyrazine and methylfurfural to allow for a visualization in a ternary diagram.
在原始数据集,15种挥发性化合物(咖啡香气的描述符)被选定为一个统计分析。我们选择羟基-2 - 丙酮,甲基吡嗪,甲基糠醛,以允许一个可视化的三元图中只有三种化合物(组成份)。