r - enter line to an object -

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hello in r how write function takes input number @ aline should entered existing object

matrix(rnorm(9),ncol=3,nrow=5) x<-c(1,7,8)

each vector should entered matrix matrix @ row 3 (so should new co row 3 . other rows pushed old row 3 row 4 then

one way of doing can :

aa<- matrix(rnorm(9),ncol=3,nrow=5) x<-c(1,7,8) rbind(aa[1:2,],x,aa[3:5,])

a similar solution ot this, actually: r: insert vector row in data.frame


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