如果我有一个文本文件mayoscore,怎样导入R?然后再用你教我的函数呢?
之前用的是R里面的mayo例子数据,直接用data(mayo)的,
---------------------------------------------------
data(mayo)
str(mayo)
mayo[1:10,]
attach(mayo)
ROC.1=survivalROC
(Stime=time,status=censor,marker=mayoscore4,predict.time=365,lambda=0.0
5)
str(ROC.1)
sum=ROC.1$TP-ROC.1$FP
(cut.op=ROC.1$cut.values[which.max(sum)])
plot(ROC.1$FP, ROC.1$TP, type="l", xlim=c(0,1), ylim=c(0,1),
xlab=paste( "FP", "\n", "AUC = ",round(ROC.1$AUC,3)),
ylab="TP",main="Mayoscore 4, Method = NNE \n Year = 1")
abline(0,1)
-----------------------------------------------------------
现在要导入文本文件mayoscore做同样的事,该怎么改写程序?
stime censor mayoscore
41 1 11.251850
179 1 10.136070
334 1 10.095740
400 1 10.189150
130 1 9.770148
223 1 9.226429
51 1 10.151430
549 1 9.473292
216 1 9.617877
859 1 9.525200
140 1 9.442583
207 1 8.860265
264 1 9.808545
77 1 9.282751
1191 1 9.318556
131 1 9.676763