On 30 June 2012 at 11:39, Greg Snow wrote:
| Look at the replicate function, it takes an expression (does not need
| a function) and runs that expression the specified number of times.
| Will that accomplish what you want without needing to worry about
| substitute, quote, eval, etc.?
And also look at the existing benchmark packages 'rbenchmark' and
'microbenchmark':
R> library(microbenchmark)
R> x <- 5; microbenchmark( 1/x, x^-1 )
Unit: nanoseconds
expr min lq median uq max
1 1/x 296 322.5 341 364.0 6298
2 x^-1 516 548.5 570 591.5 5422
R>
Dirk
--
Dirk Eddelbuettel | e...@debian.org | http://dirk.eddelbuettel.com
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