Dear R helpers,
(At the outset I sincerely apologize if I have not put forward my following
query properly, though I have tried to do so.)
Following is a curtailed part of my R - code where I am trying to generate say
100 random no.s for each of the products under consideration.
library(plyr)
n = 100
my_code = function(product, output_avg, output_stdev)
{
BUR_mc = rnorm(n, output_avg, output_stdev)
sim_BUR = data.frame(product, BUR_mc)
write.csv(data.frame(sim_BUR), 'sim_BUR.csv', row.names = FALSE)
return(list(output_avg, output_stdev))
}
result <- dlply(.data = My_data, .variables = "product", .fun = function(x)
my_code(product = x$product, output_avg = x$output_avg,
output_stdev = x$output_stdev))
There are some 12 products (and this may vary each time). In my original code,
the "return" statement returns me some other output. Here for simplicity sake,
I am just using the values as given in input.
PROBLEM - A :
I want to store the random no.s (BUR_mc) as generated above for each of the
products and store them in a single data.frame. Now when I access
'sim_BUR.csv', I get the csv file where the random nos. generated for the last
product are getting stored. I need something like
product random no
product1 .......
product1 .......
.............................
product1 ....... # (This is 100th value generated
for product1)
product2 .......
product2 .......
............................
............................
............................
Problem - B
Also, is it possible to have more than one 'return' statements in a given
function?
Thanking in advance
Vincy
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