ddply output with ggplot

[surya.se...@gmail.com]

Hi All,

I have taken titanic dataset and got the group wise counts as below.

Agegrp field is created by me

library(plyr)
survival_sum<-ddply(train_Titanic_1,.(Agegrp,Pclass),summarise,count=sum(cnt))   ## summary counts by P class and Age grp

However, after getting the above counts, I wanted to do a ggplot using the geom_point and geom_line connecting those points

I  have used the below statement, it works fine with geom_point. However, when I add geom_line() , it does not display line connecting those data points.

ggplot(survival_sum,aes(x=Agegrp,y=count,color=Pclass))+geom_point(aes(size=0.5)) +facet_grid(.~Survived)

Please help on how to incorporate the lines as well. I want to have a connecting line which goes through those points.

survival_sum is the summary of counts.

train_Titanic_1 is the data set.

Please let me know if any inputs are required on this.

Thanks in advance

---Surya