[R] Question about using ggplot

[Ben Tupper]

Hi,

It's hard to know for sure, but perhaps the spelling of 'binomial' is not correct?

Ben

> On Nov 13, 2016, at 10:18 AM, overholic10 at ajou.ac.kr wrote:
> 
> Hi. I’m a student from South Korea, and I’m studying R by myself.
> While I am studying, I have a trouble dealing with ggplot(especially, about parameter ‘family’)
>> b <- biopsy
>> b$classn[b$class == "benign"] <- 0
>> b$classn[b$class == "malignant"] <- 1
>> ggplot(b, aes(x = V1, y = classn)) + geom_point(position = position_jitter(width = 0.3, height = 0.06), alpha = 0.4, shape = 21, size = 1.5) + stat_smooth(method = "glm", family = “bimomial")) #first code
> Warning: Ignoring unknown parameters: family
> 
> While studying, I am wondering why there is a warning message. And also, there comes a wrong logistic model(Above picture). But in fact, I expect the below picture from the above code.
> 
> 
> And the below code yields ‘the model’ that I expected(below picture)
> ggplot(b, aes(x = V1, y = classn)) + geom_point(position = position_jitter(width = 0.3, height = 0.06), alpha = 0.4, shape = 21, size = 1.5) + stat_smooth(method = "glm", method.args = list(family = "binomial"))
> 
> 
> 
> 
> What’s wrong with the first code? When I searched about that from online, other people don’t seem to have a problem using family parameters.
> (I currently updated ggplot2, MASS, and sjPlot (Also, double checked it)
> Plus, I used code w/ or w/o using “”)
> 
> 
> I hope getting a good response from you.
> Thanks for reading my mail, and if my message has a rude expression, I’m sorry for my bad english skills..:(
> 
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Ben Tupper
Bigelow Laboratory for Ocean Sciences
60 Bigelow Drive, P.O. Box 380
East Boothbay, Maine 04544
http://www.bigelow.org