当分配给 r 中的公式时，句号有什么作用？在lm的参数中
What does the full stop do when assigned to a formula in r? In the parameter of lm
我是一名 C# 开发人员，刚接触 R，正在尝试理解代码行
fit <- lm(quality ~ .,wine)
我知道这会创建一个名为 fit 的列表
质量~.
必须以某种方式实例化 class“公式”的对象，以便在 lm 函数中使用。
从打字开始
help("~")
进入 R Studio 控制台，我看到了
Tilde is used to separate the left- and right-hand sides in a model
formula.
Usage y ~ model
Arguments y, model symbolic expressions.
Details The left-hand side is optional, and one-sided formulae are
used in some contexts.
A formula has mode call. It can be subsetted by [[: the components are
~, the left-hand side (if present) and the right-hand side in that
order.
但我不知道模型公式中的左右两边是什么。
以下是什么意思？
quality ~ .
是什么意思
the left and right hand sides
模型公式？
由于这与formula有关，我们可以查看?formula
的文档
There are two special interpretations of . in a formula. The usual one is in the context of a data argument of model fitting functions and means ‘all columns not otherwise in the formula’: see terms.formula. In the context of update.formula, only, it means ‘what was previously in this part of the formula’.
我是一名 C# 开发人员，刚接触 R，正在尝试理解代码行
fit <- lm(quality ~ .,wine)
我知道这会创建一个名为 fit 的列表
质量~.
必须以某种方式实例化 class“公式”的对象，以便在 lm 函数中使用。
从打字开始
help("~")
进入 R Studio 控制台，我看到了
Tilde is used to separate the left- and right-hand sides in a model formula.
Usage y ~ model
Arguments y, model symbolic expressions.
Details The left-hand side is optional, and one-sided formulae are used in some contexts.A formula has mode call. It can be subsetted by [[: the components are ~, the left-hand side (if present) and the right-hand side in that order.
但我不知道模型公式中的左右两边是什么。
以下是什么意思？
quality ~ .
the left and right hand sides
模型公式？
由于这与formula有关，我们可以查看?formula
There are two special interpretations of . in a formula. The usual one is in the context of a data argument of model fitting functions and means ‘all columns not otherwise in the formula’: see terms.formula. In the context of update.formula, only, it means ‘what was previously in this part of the formula’.