极客教程R语言 获取矩阵的行列式 – det()函数
R语言中的 det() 函数是用来计算指定矩阵的行列式的。
语法： det(x, …)
参数：
x： 矩阵
例1 :
# R program to illustrate
# det function
# Initializing a matrix with
# 3 rows and 3 columns
x <- matrix(c(3, 2, 6, -1, 7, 3, 2, 6, -1), 3, 3)
# Getting the matrix representation
x
# Calling the det() function
det(x)
R
输出
[, 1] [, 2] [, 3]
[1, ] 3 -1 2
[2, ] 2 7 6
[3, ] 6 3 -1
[1] -185
R
例2 :
# R program to illustrate
# det function
# Initializing a matrix with
# 3 rows and 3 columns
x <- matrix(c(3, 2, 6, -1, 7, 3, 2, 6, -1), 3, 3)
# Getting the matrix representation
x
# Getting the transpose of the matrix x
y <- t(x)
y
# Calling the det() function
det(y)
R
输出
[, 1] [, 2] [, 3]
[1, ] 3 -1 2
[2, ] 2 7 6
[3, ] 6 3 -1
[, 1] [, 2] [, 3]
[1, ] 3 2 6
[2, ] -1 7 3
[3, ] 2 6 -1
[1] -185
R