r - Assigning to a dynamically created vector -

how assign dynamically created vector?

master<-c("bob","ed","frank") d<-seq(1:10) (i in 1:length(master)){   assign(master[i], d ) }  eval(parse(text=master[2]))[2] # can access data  #   how can assign returns error     ####################### eval(parse(text=master[2]))[2]<- 900 

ok. i'll post code because asked to:

> eval(parse(text=paste0( master[2], "[2]<- 900" ) ) ) > ed  [1]   1 900   3   4   5   6   7   8   9  10 

it's considered bad practice use such method. need build expression" ed[2] < 100. using paste0 lets evaluate master[2] 'ed' concatenated rest of characters before passing parse convert language object. more in keeping considered better practice:

master<-c("bob","ed","frank") d<-seq(1:10) mlist <- setnames( lapply(seq_along(master), function(x) {d} ), master) 

so changing second value of second item <-:

> mlist[[2]][2] <- 900 > mlist[['ed']]  [1]   1 900   3   4   5   6   7   8   9  10