Normalize rows of a matrix within range 0 and 1

Question

I am trying to normalize all rows of my matrix data at once within range 0 and 1. But I don\'t know how to do it.. For example, I want to normalize each \"obs1\", \"obs2\",

Answer 1

for(i in 2:length(mydata[1,])){

    mydata[,i] <- prop.table(mydata[,i])

}

Normalized matrix will be updated in mydata