Displaying 1 result from an estimated 1 matches for "ran_1".
Did you mean:
ran1
2009 Nov 13
2
why the same values cannot be judged to be the same in R
...2,
2.35,2, 0.21, 3.33,2, 0.23, 3.35,3, 1.57, 1.31,3, 1.59,
1.33),nrow=8,ncol=3,byrow=TRUE)
data2<-data.frame(data2);names(data2)<-c("areaid","x1","y1")
data2$tag<-0
data1_1<-data1[1,]
data2_1<-data2[data2$areaid==data1_1$areaid & data2$tag==0,]
ran_1<-sample(c(1:length(data2_1)),2, replace = FALSE)
data2_1<-data2_1[ran_1,]
data_1<-merge(data1_1,data2_1)
#data_1
# areaid x y date x1 y1 tag
# 1 1 1.2 1.3 3/23/2004 1.52 2.35 0
# 2 1 1.2 1.3 3/23/2004 1.53 2.34 0
data2[data_1$x1==data2$x1 & data_1...