If error, next iteration in a for loop in R -

i'm looking simple way move on next iteration in loop in r if operation inside loop errors.

i've recreated simple case below:

for(i in c(1, 3)) {   test <- try(i+1, silent=true)   calc <- if(class(test) %in% 'try-error') {next} else {i+1}   print(calc) } 

this correctly gives me following calc values.

[1] 2 [1] 4 

however once change vector in include non-numeric value:

for(i in c(1, "a", 3)) {   test <- try(i+1, silent=true)   calc <- if(class(test) %in% 'try-error') {next} else {i+1}   print(calc) } 

this loop doesn't work. hoping same calc values above vector excluding non-numeric value in i.

i tried using trycatch following:

for(i in c(1, "a", 3)) {   calc <- trycatch({i+1}, error = function(e) {next})   print(calc) } 

however, following error:

error in value[[3l]](cond) : no loop break/next, jumping top level  

could please me understand how achieve using loop in r?

as dason noted, atomic vector not best way of storing mixed data types. lists that. consider following:

l = list(1, "sunflower", 3)  for(i in seq_along(l)) {    this.e = l[[i]]    test <- try(this.e + 1, silent=true)    calc <- if(class(test) %in% 'try-error') {next} else {this.e + 1}    print(calc) }  [1] 2 [1] 4 

in other words, former loop "worked". always failed , went next iteration.