Я запускаю линейную смешанную модель для набора данных. Траектория развития двух групп, оцениваемая в 3 момента времени по ряду различных показателей. Предикторами являются возраст и образование матери. Я использую пакеты nlme и ggplot2. Вот моя окончательная модель (GM_RAW — зависимая переменная)
Model_5<-lme(GM_RAW~timepoint*Group+age+Maternal_Education, data=dat,
random=~timepoint|ID,method="ML", na.action=na.omit,control=list(opt="optim"))
summary(Model_5)
Я построил отдельные траектории на основе необработанных данных, но я хочу добавить информацию из прогнозируемых линий из модели для двух моих групп. Я пробовал различные предложения, опубликованные в переполнении стека, но ни одно из них не работает.
dat$gmpred<-predict(Model_5)
GrossMotor<-ggplot(dat,aes(x=as.numeric(timepoint),y=GM_RAW,colour=Group))+
geom_point()+ geom_line(aes(group=ID))
GrossMotor + geom_line(data=dat, aes(y=gmpred))
Я хочу показать точку пересечения и наклон для моих двух групп на финальном графике.
некоторые примерные данные
"","ID","timepoint","Maternal_Education","age","Group","GM_RAW"
"1",3012,"5 months",NA,188,"Typical Group",10
"2",3089,"5 months",NA,182,"Typical Group",9
"3",3012,"10 months",NA,328,"Typical Group",13
"4",3004,"5 months","Tertiary postgraduate",163,"Typical Group",6
"5",3008,"5 months","Tertiary postgraduate",171,"Typical Group",4
"6",3023,"5 months","Tertiary postgraduate",170,"Typical Group",8
"7",3063,"5 months","Tertiary postgraduate",181,"Typical Group",10
"8",3071,"5 months","Tertiary postgraduate",151,"Typical Group",8
"9",3074,"5 months","Tertiary postgraduate",183,"Typical Group",9
"10",3075,"5 months","Tertiary postgraduate",165,"Typical Group",9
"11",3087,"5 months","Tertiary postgraduate",172,"Typical Group",6
"12",3104,"5 months","Tertiary postgraduate",180,"Typical Group",7
"13",3115,"5 months","Tertiary postgraduate",199,"Typical Group",8
"14",3142,"5 months","Tertiary postgraduate",201,"Typical Group",9
"15",3161,"5 months","Tertiary postgraduate",189,"Typical Group",7
"16",3162,"5 months","Tertiary postgraduate",201,"Typical Group",8
"17",4002,"5 months","Tertiary postgraduate",202,"NF1",8
"18",4024,"5 months","Tertiary postgraduate",167,"NF1",8
"19",3004,"10 months","Tertiary postgraduate",315,"Typical Group",9
"20",3008,"10 months","Tertiary postgraduate",341,"Typical Group",9
"21",3023,"10 months","Tertiary postgraduate",358,"Typical Group",14
"22",3063,"10 months","Tertiary postgraduate",293,"Typical Group",17
"23",3071,"10 months","Tertiary postgraduate",302,"Typical Group",12
"24",3074,"10 months","Tertiary postgraduate",333,"Typical Group",12
"25",3075,"10 months","Tertiary postgraduate",318,"Typical Group",11
"26",3078,"10 months","Tertiary postgraduate",304,"Typical Group",9
"27",3087,"10 months","Tertiary postgraduate",335,"Typical Group",13
"28",3104,"10 months","Tertiary postgraduate",294,"Typical Group",10
"29",3115,"10 months","Tertiary postgraduate",305,"Typical Group",11
"30",3142,"10 months","Tertiary postgraduate",327,"Typical Group",11
"31",3161,"10 months","Tertiary postgraduate",328,"Typical Group",12
"32",3162,"10 months","Tertiary postgraduate",333,"Typical Group",10
"33",4002,"10 months","Tertiary postgraduate",335,"NF1",11
"34",4009,"10 months","Tertiary postgraduate",320,"NF1",11
"35",4024,"10 months","Tertiary postgraduate",351,"NF1",13
"36",3004,"14 months","Tertiary postgraduate",438,"Typical Group",21
"37",3008,"14 months","Tertiary postgraduate",460,"Typical Group",9
"38",3023,"14 months","Tertiary postgraduate",471,"Typical Group",18
"39",3063,"14 months","Tertiary postgraduate",445,"Typical Group",20