Em dataset.csv

Germination frequencies obtained from a garden experiment. Two factors (treatments) manipulated: soil type and watering. Soil type (see legend below) Watering (yes or no) Germination (1 = yes; 0 = no) Frequency (number of seeds) s0 = Substrate of the type of the reference station, taken around the mother plants, consisting of the typical thin stony and rocky soil s1 = Substrate like the previous one, but taken preferring where there were accumulations of above ground (usually from a few mm to two cm) s2 = Substrate rich in forest humus taken near the reference station under tree cover s3 = Substrate rich in yellowish orange brown clay (1/3) arranged on thin levels interspersed with each other, and with a component of gravel (1/3) and river sand (1/3) s4 = Cultivable substrate, deriving from a former cultivation, with the presence of clay and silt (about 1/3 + 1/3), fine sand (1/6) and slightly coarser sand (1/6)

本数据集源自一项园艺实验，记录了种子发芽频次相关数据。实验设置两项操控处理因素：土壤类型与浇水条件。各变量说明如下：土壤类型（详见下文图例）、浇水条件（取值为是或否）、发芽状态（1代表发芽成功，0代表未发芽）、频次（即对应处理组合下的种子总数）。各基质类型详细说明：s0为对照站点原生基质，采自母株周边，为典型的薄覆石质岩土；s1为同类型基质，但优先选取存在地表凋落物堆积（通常厚度为数毫米至2厘米）的区域采集；s2为采自对照站点林下、富含森林腐殖质的基质；s3为以黄褐黏土（占比1/3）分层交错堆叠而成，混杂砾石（1/3）与河沙（1/3）的基质；s4为源自旧耕地的可栽培基质，含黏土与粉砂（各约1/3）、细沙（1/6）及稍粗沙粒（1/6）。