10 окт. 2019 г. · I am trying to create a reusable function. In the function, I would like to self-define a formula and then test the formula with the lm in my function.

14 февр. 2018 г. · Here's a function that takes a formula and transforms it into a call to the cor() function, then evaluates that call in an environment ...

13 янв. 2020 г. · Formulas created with the ~ operator use the environment in which they were created. Formulas created with as.formula will use the env argument for their ...

17 янв. 2022 г. · If you are evaluating these statements in your global environment, then you could do: f <- y ~ var1 + var2 + var3 a <- as.name("aaabbbccc") ...

24 апр. 2021 г. · I want to add extra variables to a formula, with the use of a separate object part_B. As an example: part_A <- as.formula("y ~ x1") part_B <- c("x2", "x3")

21 мар. 2020 г. · I was wondering if there might be a way to turn a character string like "time" into a formula object like time ~ 1 in BASE R?

30 сент. 2018 г. · See examples in ?as.formula . You should not be explicitly calling variables from their variable names. The formula should be an abstract, ...

25 авг. 2016 г. · I am trying to use the following argument: formula=~a+b*X where X is vector, 'a' and 'b' are constants in a function call.

30 сент. 2020 г. · Is there a way to take in a list of all column names to create a formula object? R Language Collective. r · function · variables · formula.

8 нояб. 2011 г. · The I() function acts to convert the argument to "as.is", ie what you expect. So I(x^2) would return a vector of values raised to the second power.