[R] rpois formula

[David Winsemius]

Or:
  a = rpois (100000, 0.1)
  b = rpois (100000, 0.15)

table(a>b, a==b, b>a)

And if you look at that output a bit:

table(a<b,a==b )[c(1,3,2)]  # for a>b, b>a and a=b .
# 79049 12712  8239   .. since FALSE < TRUE
--

On Oct 6, 2009, at 9:49 PM, Ian Fiske wrote:

>
> try
> sum(a > b)
> sum(b > a)
> sum(a == b)
>
> Ian
>
>
> nedmt60 wrote:
>>
>> i have
>>
>> a = rpois (100000, x)
>> b = rpois (100000, y)
>>
>> what is the code to show that a>b, b>a and a=b to show just the  
>> number of
>> occurances?

occurrences?

>> at the moment when I type a>b I get a nice long list of true or  
>> false.

As you _should_ when you supply two vectors to a binary operator.

>>
>
> -- 


David Winsemius, MD
Heritage Laboratories
West Hartford, CT