R Programming: Extract the submatrix whose rows have column value > 7 from a given matrix
R Programming: Matrix Exercise-7 with Solution
Write a R program to extract the submatrix whose rows have column value > 7 from a given matrix.
Sample Solution:
R Programming Code:
row_names = c("row1", "row2", "row3", "row4")
col_names = c("col1", "col2", "col3", "col4")
M = matrix(c(1:16), nrow = 4, byrow = TRUE, dimnames = list(row_names, col_names))
print("Original Matrix:")
print(M)
result = M[M[,3] > 7,]
print("New submatrix:")
print(result)
Sample Output:
[1] "Original Matrix:" col1 col2 col3 col4 row1 1 2 3 4 row2 5 6 7 8 row3 9 10 11 12 row4 13 14 15 16 [1] "New submatrix:" col1 col2 col3 col4 row3 9 10 11 12 row4 13 14 15 16
R Programming Code Editor:
Have another way to solve this solution? Contribute your code (and comments) through Disqus.
Previous: Write a R program to create a matrix from a list of given vectors.
Next: Write a R program to convert a matrix to a 1 dimensional array.
Test your Programming skills with w3resource's quiz.
What is the difficulty level of this exercise?
- New Content published on w3resource:
- HTML-CSS Practical: Exercises, Practice, Solution
- Java Regular Expression: Exercises, Practice, Solution
- Scala Programming Exercises, Practice, Solution
- Python Itertools exercises
- Python Numpy exercises
- Python GeoPy Package exercises
- Python Pandas exercises
- Python nltk exercises
- Python BeautifulSoup exercises
- Form Template
- Composer - PHP Package Manager
- PHPUnit - PHP Testing
- Laravel - PHP Framework
- Angular - JavaScript Framework
- Vue - JavaScript Framework
- Jest - JavaScript Testing Framework