- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
- 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 create a matrix with vectors as elements in R?
To create a matrix with vectors as elements in R, we can create arrays because an array contains matrices with vectors as elements.
Check out the below given examples of arrays and vectors extracted by the arrays to understand how matrices stored in an array represent vectors as elements.
Example 1
Following snippet creates arrays consisting of matrices −
Array<-array(1:100,c(5,2,5)) Array
The following arrays are created −
, , 1 [,1][,2] [1,] 1 6 [2,] 2 7 [3,] 3 8 [4,] 4 9 [5,] 5 10 , , 2 [,1][,2] [1,] 11 16 [2,] 12 17 [3,] 13 18 [4,] 14 19 [5,] 15 20 , , 3 [,1][,2] [1,] 21 26 [2,] 22 27 [3,] 23 28 [4,] 24 29 [5,] 25 30 , , 4 [,1][,2] [1,] 31 36 [2,] 32 37 [3,] 33 38 [4,] 34 39 [5,] 35 40 , , 5 [,1][,2] [1,] 41 46 [2,] 42 47 [3,] 43 48 [4,] 44 49 [5,] 45 50
To extract the vectors from matrices in array, add the following code to the above snippet −
Array<-array(1:100,c(5,2,5)) Array[1,2,]
Output
If you execute all the above given snippets as a single program, it generates the following output −
[1] 6 16 26 36 46
To extract the vectors from matrices in array, add the following code to the above snippet −
Array<-array(1:100,c(5,2,5)) Array[5,2,]
Output
If you execute all the above given snippets as a single program, it generates the following output −
[1] 10 20 30 40 50
To extract the vectors from matrices in array, add the following code to the above snippet −
Array<-array(1:100,c(5,2,5)) Array[5,1,]
Output
If you execute all the above given snippets as a single program, it generates the following output −
[1] 5 15 25 35 45
Example 2
Following snippet creates arrays consisting of matrices −
Array_dat<-array(rpois(100,10),c(5,5,4)) Array_dat
The following arrays are created −
, , 1 [,1][,2][,3][,4][,5] [1,] 10 13 7 10 16 [2,] 6 11 6 12 8 [3,] 5 6 10 8 17 [4,] 7 9 13 4 11 [5,] 14 12 6 11 6 , , 2 [,1][,2][,3][,4][,5] [1,] 12 10 12 14 16 [2,] 9 9 14 16 12 [3,] 5 8 8 14 11 [4,] 6 10 11 8 17 [5,] 10 11 11 13 9 , , 3 [,1][,2][,3][,4][,5] [1,] 10 12 8 6 10 [2,] 9 11 5 13 12 [3,] 12 10 5 8 11 [4,] 9 13 10 12 13 [5,] 16 8 13 14 11 , , 4 [,1][,2][,3][,4][,5] [1,] 11 8 10 6 13 [2,] 14 8 10 8 12 [3,] 8 8 9 6 6 [4,] 12 9 4 9 16 [5,] 9 8 11 18 11
To extract vectors from matrices in Array_dat, add the following code to the above snippet −
Array_dat<-array(rpois(100,10),c(5,5,4)) Array_dat[1,1,]
Output
If you execute all the above given snippets as a single program, it generates the following output −
[1] 10 12 10 11
To extract vectors from matrices in Array_dat, add the following code to the above snippet −
Array_dat<-array(rpois(100,10),c(5,5,4)) Array_dat[1,2,]
Output
If you execute all the above given snippets as a single program, it generates the following output −
[1] 13 10 12 8
- Related Questions & Answers
- How to convert matrix columns to a list of vectors in R?
- How to create a sequence of values between two vectors in R using corresponding elements?
- How to create a matrix with random values in R?
- How to create a matrix with equal rows in R?
- How to multiply two vectors in R as in mathematics?
- How to create combination of multiple vectors in R?
- How to create a matrix with only one row in R?
- How to create a covariance matrix in R?
- How to create a sparse matrix in R?
- How to create a scatterplot with colors as group in R?
- How to create a vector with lowercase as well as uppercase letters in R?
- How to standardize matrix elements in R?
- How to save matrix created in R as tables in a text file with column names same as the matrix?
- How to create a block diagonal matrix using a matrix in R?
- How to create an upper triangular matrix using vector elements in R?