[R] How to not to terminate read.table if the input file is empty?

[Peng Yu]

On Fri, Jan 1, 2010 at 3:19 PM, Peng Yu <pengyu.ut at gmail.com> wrote:
> On Fri, Jan 1, 2010 at 2:54 PM, Dylan Beaudette
> <dylan.beaudette at gmail.com> wrote:
>> ?try
>
> This works. Thank you!
>
>> f=try(read.table("empty_data.txt"))
> Error in read.table("empty_data.txt") : no lines available in input

One more question. Is there a way to suppress the output to the screen
'Error in read.table("empty_data.txt") : no lines available in input'?

>> if(class(f)=='try-error') {
> +   f=NULL
> + }
>> print(f)
> NULL
>> g=try(read.table("data.txt"))
>> print(g)
>    V1     V2     V3     V4
> 1 name title1 title2 title3
> 2 row1   10.1   20.1   30.1
> 3 row2   12.1   22.1   32.1
>>
>
>
>> On Fri, Jan 1, 2010 at 12:41 PM, Peng Yu <pengyu.ut at gmail.com> wrote:
>>> read.table terminates the program if the input file is empty. Is there
>>> way to let the program continue and return me a NULL instead of
>>> terminating the program?
>>>
>>> $ Rscript read_empty.R
>>>> read.table("empty_data.txt")
>>> Error in read.table("empty_data.txt") : no lines available in input
>>> Execution halted
>>> $ cat read_empty.R
>>> read.table("empty_data.txt")
>>> $ cat empty_data.txt; echo EOF
>>> EOF
>>>
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>>
>