我有这个示例矩阵,我想使用"YES"
或"NO"
基于条件if
语句更改矩阵的条目。
a<-c(5,1,0,3,2,0.6,1.6,7,9,0)
b<-c(11,0,1,18,11,11,0,13,20,10)
c<-c(10,20,0.7,0.8,0.3,0.4,0,0.9,1,1)
MAT<-cbind(a,b,c)
MAT
for (i in 1:nrow(MAT)){
for (j in 1:ncol(MAT)){
if (MAT[i,j]>5){
MAT[i,j]="YES"
} else {
MAT[i,j]="NO"
}
}
}
print(MAT)
我得到的输出是这样的,它是错误的。请帮助告诉我出了什么问题以及如何解决?
a b c
[1,] "NO" "NO" "NO"
[2,] "NO" "NO" "NO"
[3,] "NO" "NO" "NO"
[4,] "NO" "NO" "NO"
[5,] "NO" "NO" "NO"
[6,] "NO" "NO" "NO"
[7,] "NO" "NO" "NO"
[8,] "YES" "NO" "NO"
[9,] "YES" "NO" "NO"
[10,] "NO" "NO" "NO"