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nested for loop with data table

Jim Lemon 
Hi Ek,
I think you want your example to look like this:

Sample<-read.table(text=
"Num Color Grade Value Month Day
1 yellow A 20 May 1
2 green B 25 June 2
3 green A 10 April 3
4 black A 17 August 3
5 red C 5 December 5
6 orange D 0 January 13
7 orange E 12 January 5
8 orange F 11 February 8
9 orange F 99 July 23
10 orange F 70 May 7
11 black A 77 June 11
12 green B 87 April 33
13 black A 79 August 9
14 green A 68 December 14
15 black C 90 January 31
16 green D 79 January 11
17 black E 101 February 17
18 red F 90 July 21
19 red F 112 February 13
20 red F 101 July 20",
header=TRUE)
AAA<-Sample[Sample$Num < 5 & Sample$Day < 3,]
BBB<-Sample[Sample$Num > 15 & Sample$Day > 13,]
for(i in 1:length(AAA)) {
 for(j in 1:length(BBB)) {
  ...
 }
}

except in data.table notation. However, I can't work out what you want
to do in the loop.

Jim
On Wed, May 3, 2017 at 2:35 AM, Ek Esawi <esawiek at gmail.com> wrote:

Thread (7 messages)

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