When i increments to 6 (during the fifth iteration) the subsequent test of
x[i]<=5 will produce an error since x has only five elements.
> On 31 Mar 2018, at 14:45, Henri Moolman <moolman.he...@gmail.com> wrote:
>
> Could you please provide help with something from R that I find rather
> puzzling? In the small program below x[1]=1, . . . , x[5]=5. R also
> finds that x[1]<=5 is TRUE. Yet when you attempt to execute while, R does
> not seem to recognize the condition. Any thoughts on why this happens?
>
> Regards
>
> Henri Moolman
>
>> x=c(1,2,3,4,5)
>> x[1]
> [1] 1
>> i=1
>> x[1]<=5
> [1] TRUE
>> while(x[i]<=5){
> + i=i+1
> + }
> Error in while (x[i] <= 5) { : missing value where TRUE/FALSE needed
>
> [[alternative HTML version deleted]]
>
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