[R] parsing speed

Federico Calboli f.calboli at imperial.ac.uk
Mon May 16 12:46:54 CEST 2005

Hi everyone,

I have a question on parsing speed.

I have two functions:


As things are now, F2 calls F1 internally:

F2 =  function(x){
if (something == 1){
y = F1(x)
if (something ==2){
do whatever

*Assuming there could be some difference*, is is faster to use the code
as written above or should I actually write the statements of F1 to make
the parsing faster? 


Federico Calboli

Federico C. F. Calboli
Department of Epidemiology and Public Health
Imperial College, St Mary's Campus
Norfolk Place, London W2 1PG

Tel  +44 (0)20 7594 1602     Fax (+44) 020 7594 3193

f.calboli [.a.t] imperial.ac.uk
f.calboli [.a.t] gmail.com

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