Check out example codes for "suppress error r". It will help you in understanding the concepts better.

Code Example 1

o <- try(1 + "a")
>  Error in 1 + "a" : non-numeric argument to binary operator
o <- try(1 + "a", silent=TRUE)  # no error printed

o <- tryCatch(1 + "a")
> Error in 1 + "a" : non-numeric argument to binary operator
o <- tryCatch(1 + "a", error=function(e){})

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