Can one extract model fit parameters after a ggplot stat_smooth call?

Posted by Alex Holcombe on Stack Overflow See other posts from Stack Overflow or by Alex Holcombe
Published on 2010-04-19T11:02:52Z Indexed on 2010/04/19 12:33 UTC
Read the original article Hit count: 173

Filed under:

ggplot2

|

r

Using stat_smooth, I can fit models to data. E.g.

g=ggplot(tips,aes(x=tip,y=as.numeric(unclass(factor(tips$sex))-1))) +facet_grid(time~.) 
g=g+ stat_summary(fun.y=mean,geom="point") 
g=g+ stat_smooth(method="glm", family="binomial")

I would like to know the coefficients of the glm binomial fits. I could re-do the fit with dlply and get the coefficients with ldply, but I'd like to avoid such duplication.

Calling str(g) reveals the hierarchy of objects that ggplot creates, perhaps there's some way to get to the coefficients through that?

Related posts about ggplot2

Annotating axis in ggplot2

as seen on Stack Overflow - Search for 'Stack Overflow'
I am looking for the way to annotate axis in ggplot2. The example of the problem can be found here: http://learnr.wordpress.com/2009/09/24/ggplot2-back-to-back-bar-charts. The y axis of the chart (example graph in the link) has an annotation: (million euro). Is there a way to create such types of… >>> More
How safe am I singing into Google Spreadsheets with yeroon.net/ggplot2

as seen on Stack Overflow - Search for 'Stack Overflow'
I am impressed by what I have seen of yeroon.net/ggplot2 which is a web interface for Hadley Wickham's R package ggplot2. I want to try it out on my own data. The part that has me very excited is that one can use data stored in one's own Google spreadsheet as the data. One just signs into their Google… >>> More
R ggplot2: Arrange facet_grid by non-facet column (and labels using non-facet column)

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a couple of questions regarding facetting in ggplot2... Let's say I have a query that returns data that looks like this: (note that it's ordered by Rank asc, Alarm asc and two Alarms have a Rank of 3 because their Totals = 1798 for Week 4, and Rank is set according to Total for Week 4) … >>> More
Show frequencies along with barplot in ggplot2

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to display frequencies within barplot ... well, I want them somewhere in the graph: under the bars, within bars, above bars or in the legend area. And I recall (I may be wrong) that it can be done in ggplot2. This is probably an easy one... at least it seems easy. Here's the code: p <-… >>> More
Error when trying to create a faceted plot in ggplot2

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to make a faceted plot in ggplot2 of the coefficients on the regressors from two linear models with the same predictors. The data frame I constructed is this: r.together> reg coef se y 1 (Intercept) 5.068608671 0.6990873 Labels 2 goodTRUE 0.310575129… >>> More

Developer IT

Can one extract model fit parameters after a ggplot stat_smooth call? - Developer IT

Can one extract model fit parameters after a ggplot stat_smooth call?

ggplot2

r

Related posts about ggplot2

Annotating axis in ggplot2

How safe am I singing into Google Spreadsheets with yeroon.net/ggplot2

R ggplot2: Arrange facet_grid by non-facet column (and labels using non-facet column)

Show frequencies along with barplot in ggplot2

Error when trying to create a faceted plot in ggplot2

Related posts about r

Categories cloud