a vector question

["Leeds, Mark" <mleeds@mlp.com>]

Suppose I have a true false vector such as

 

1806       1806    1923      1806      6429

 

T              F           T         T             F

 

What I want is a new vector of the

same length but with the sums of  the

TRUEs as the new elements.

 

 

So, the vector output from above would be

 

1806        1806       1923        1806    6429

 

  2             2             1             2          0

 

 

I have a feeling someone out there has done this

before ? If so, it’s much appreciated. If not,

but you know how to do this, that’s

much appreciated also.

 

 

                                                Mark