R语言—R.matlab包安装及使用

Posted 2022-08-11 大作家佚名

R.matlab简介

R.matlab是R语言与Matlab之间的桥梁，有mat文件作为沟通方式。通过该包R语言可以读写mat文件。

R.matlab安装

R.matlab可直接通过下面代码安装：

install.packages("R.matlab")

也可以通过Github源码安装

remotes::install_github("HenrikBengtsson/R.matlab", ref="develop")

调用包读写

查看帮助

library(R.matlab)
help(R.matlab)

读mat文件

### ** Examples

path <- system.file("mat-files", package = "R.matlab")
pathname <- file.path(path, "ABC.mat")
data <- readMat(pathname)
print(data)
$A
      [,1] [,2] [,3]
 [1,]    1   10   19
 [2,]    2   11   20
 [3,]    3   12   21
 [4,]    4   13   22
 [5,]    5   14   23
 [6,]    6   15   24
 [7,]    7   16   25
 [8,]    8   17   26
 [9,]    9   18   27

$B
      [,1]
 [1,]    1
 [2,]    2
 [3,]    3
 [4,]    4
 [5,]    5
 [6,]    6
 [7,]    7
 [8,]    8
 [9,]    9
[10,]   10

$C
, , 1

     [,1] [,2] [,3]
[1,]    1    3    5
[2,]    2    4    6

, , 2

     [,1] [,2] [,3]
[1,]    7    9   11
[2,]    8   10   12

, , 3

     [,1] [,2] [,3]
[1,]   13   15   17
[2,]   14   16   18


attr(,"header")
attr(,"header")$description
[1] "MATLAB 5.0 MAT-file, Platform: windows, Software: R v2.15.0, Created on: Sat Mar 31 19:50:00 2012                           "

attr(,"header")$version
[1] "5"

attr(,"header")$endian
[1] "little"

写mat文件

### ** Examples
A <- matrix(1:27, ncol = 3)
B <- as.matrix(1:10)
C <- array(1:18, dim = c(2, 3, 3))
writeMat("D:/codes/matlab/test.mat", A = A, B = B, C = C)