添加一个带有 code/formula 的新变量，该变量与前一个变量产生适度关联
Adding a new variable with a code/formula that generates a moderate association with a previous one
我尝试添加一个与前一个变量有关联的新变量。是否有 math/code trick/formula 来增加此关联中的置信带宽度？
library(tidyverse)
d = tibble(a = rnorm(50, 100, 20))
#adding a new variable that correlates with the previous
d = d %>% mutate(b = a*10) #<- this is the formula
#plotting association
d %>% ggplot(aes(a, b))+
geom_smooth(method = "lm")
是这样的吗？
d %>%
mutate(b = a*10 + rnorm(50, 0, 100)) %>%
ggplot(aes(a, b)) + geom_smooth(method = "lm")
我尝试添加一个与前一个变量有关联的新变量。是否有 math/code trick/formula 来增加此关联中的置信带宽度？
library(tidyverse)
d = tibble(a = rnorm(50, 100, 20))
#adding a new variable that correlates with the previous
d = d %>% mutate(b = a*10) #<- this is the formula
#plotting association
d %>% ggplot(aes(a, b))+
geom_smooth(method = "lm")
是这样的吗？
d %>%
mutate(b = a*10 + rnorm(50, 0, 100)) %>%
ggplot(aes(a, b)) + geom_smooth(method = "lm")