2016-03-29 70 views
3

我有数据如下:ggplot平滑线GLM模型

numbers <- structure(list(density = c(1L, 4L, 10L, 22L, 55L, 121L, 210L, 
444L), females = c(1L, 3L, 7L, 18L, 22L, 41L, 52L, 79L), males = c(0L, 
1L, 3L, 4L, 33L, 80L, 158L, 365L), maleProp = c(0, 0.25, 0.3, 
0.181818181818182, 0.6, 0.661157024793388, 0.752380952380952, 
0.822072072072072), total = c(1L, 4L, 10L, 22L, 55L, 121L, 210L, 
444L)), .Names = c("density", "females", "males", "maleProp", 
"total"), row.names = c(NA, -8L), class = "data.frame") 

我想和glm方法与total作为weight平滑线。我试过了,

ggplot(numbers, aes(density, maleProp)) + geom_point() + 
    stat_smooth(method = "glm", 
       method.args = list(family = "binomial", 
           type = "response", 
           weights = "total")) 

我有错误,

Warning message: 
Computation failed in `stat_smooth()`: 
formal argument "weights" matched by multiple actual arguments 

我怎样才能画出流畅的线条在这种情况下?

+0

我尝试了你的代码,它的工作。它可能是你有'总'定义某种其他方式混淆解析器? –

+1

[Zahiro Mor](http://stackoverflow.com/users/4700149/zahiro-mor)::这可能是ggplot的旧版本,请更新您的ggplot版本,您将发生同样的错误。 – TheRimalaya

回答

4

如果您想使用与您列出的参数glm,可以按如下方式创建一个包装函数:

binomial_smooth <- function(...) { 
    geom_smooth(method = "glm", method.args = list(family = "binomial"), ...) 
} 

,你可以在你的ggplot2对象上直接使用:

ggplot(numbers, aes(density, maleProp)) + geom_point() + binomial_smooth(aes(weight = total))