Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
How to combine list elements of different sizes in R?
To combine list elements of different sizes in R, we can use expand.grid function. For Example, if we have a list called LIST that contains elements of different sizes then we can combine those items by using the command given below −
expand.grid(LIST)
Example 1
To combine list elements of different sizes in R, use the following snippet −
List1<-list(x1=rpois(2,2),x2=rpois(2,10),x3=rpois(1,2),x4=rpois(3,5),x5=rpois(2,5)) List1
The respective Outputs as per the sizes will be as follows −
$x1 [1] 2 3 $x2 [1] 6 7 $x3 [1] 2 $x4 [1] 2 4 4 $x5 [1] 3 5
Now, to combine elements of List1 add the following code to the above snippet −
List1<-list(x1=rpois(2,2),x2=rpois(2,10),x3=rpois(1,2),x4=rpois(3,5),x5=rpois(2,5)) expand.grid(List1)
Output
If you execute all the above given snippets as a single program, it generates the following Output −
x1 x2 x3 x4 x5 1 2 6 2 2 3 2 3 6 2 2 3 3 2 7 2 2 3 4 3 7 2 2 3 5 2 6 2 4 3 6 3 6 2 4 3 7 2 7 2 4 3 8 3 7 2 4 3 9 2 6 2 4 3 10 3 6 2 4 3 11 2 7 2 4 3 12 3 7 2 4 3 13 2 6 2 2 5 14 3 6 2 2 5 15 2 7 2 2 5 16 3 7 2 2 5 17 2 6 2 4 5 18 3 6 2 4 5 19 2 7 2 4 5 20 3 7 2 4 5 21 2 6 2 4 5 22 3 6 2 4 5 23 2 7 2 4 5 24 3 7 2 4 5
Example 2
To combine list elements of different sizes in R, use the following snippet −
List2<-list(y1=0:2,y2=c(1,2),y3=c(2,3,4,5)) List2
The respective
Output
s as per the sizes will be as follows −
$y1 [1] 0 1 2 $y2 [1] 1 2 $y3 [1] 2 3 4 5
To combine elements of List2 add the following code to the above snippet −
List2<-list(y1=0:2,y2=c(1,2),y3=c(2,3,4,5)) expand.grid(List2)
Output
If you execute all the above given snippets as a single program, it generates the following Output −
y1 y2 y3 1 0 1 2 2 1 1 2 3 2 1 2 4 0 2 2 5 1 2 2 6 2 2 2 7 0 1 3 8 1 1 3 9 2 1 3 10 0 2 3 11 1 2 3 12 2 2 3 13 0 1 4 14 1 1 4 15 2 1 4 16 0 2 4 17 1 2 4 18 2 2 4 19 0 1 5 20 1 1 5 21 2 1 5 22 0 2 5 23 1 2 5 24 2 2 5
401 Views
