R help - Apr 2007 - Question about R

Hi,
   
  I would like to ask how can I do the problem as follows by R. Thank you very
much.
   
  Q: Create a list of twenty distinct first names, ten male and ten female, and
store them into an array. Write a routine for selecting a simple random sample
of five names and counts the number of male and female names in the sample when
the sample is drawn :
  (a) with replacement
  (b) without replacement

 
---------------------------------
Finding fabulous fares is fun.

	[[alternative HTML version deleted]]

Hi

isnt it a homework?

FYI see

?list
?vector
?data.frame
?sample
?lapply

and some basic stuff like Introduction manual provided with your R 
instalation to see how some simple data manipulations can be done.

Regards

Petr Pikal
petr.pikal at precheza.cz

r-help-bounces at stat.math.ethz.ch napsal dne 05.04.2007 05:58:48:
> Hi,
> 
>   I would like to ask how can I do the problem as follows by R. Thank 
you very much.
> 
>   Q: Create a list of twenty distinct first names, ten male and ten 
female, 
> and store them into an array. Write a routine for selecting a simple 
random 
> sample of five names and counts the number of male and female names in 
the 
> sample when the sample is drawn :
>   (a) with replacement
>   (b) without replacement
> 
> 
> ---------------------------------
> Finding fabulous fares is fun.
> 
>    [[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide 
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

?sample
nams  <-  c(rep("a",10), rep("b",10))
table(sample(nams, 5, replace = TRUE))

--- Chia-Yi Tseng <tseng_chiayi at yahoo.com> wrote:
> Hi,
>    
>   I would like to ask how can I do the problem as
> follows by R. Thank you very much.
>    
>   Q: Create a list of twenty distinct first names,
> ten male and ten female, and store them into an
> array. Write a routine for selecting a simple random
> sample of five names and counts the number of male
> and female names in the sample when the sample is
> drawn :
>   (a) with replacement
>   (b) without replacement
> 
>  
> ---------------------------------
> Finding fabulous fares is fun.
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained,
> reproducible code.
>