python read .rds file with rpy2

windows 环境使用rpy2

    # 再导入rpy2之前 配置环境变量
    import os
    os.environ['R_HOME'] = 'R-install-Path'
    os.environ['R_USER'] = 'window'   # 可进入R交互模式 Sys.info() 查看

python 读取R文件 （rds文件）

    import os
    os.environ['R_HOME'] = 'R-install-Path'
    os.environ['R_USER'] = 'window'
    import rpy2.robjects as robjects
    from rpy2.robjects import pandas2ri
    from rpy2.robjects.packages import importr
    pandas2ri.activate()

    readRDS = robjects.r['readRDS']
    data = readRDS('example.rds')
    rdsKeys = data.dimnames  # 原始数据的kesy 维度名

Linux 环境下使用python 调用R环境, rpy2需要配置R的环境变量

1. 查看R_HOME所在路径

       Sys.getenv('R_HOME')
       >>> /usr/local/lib64/R
   

2.1 添加永久环境变量(所有用户)，添加在文件末尾
vi  /etc/profile

> export LD_LIBRARY_PATH="/usr/local/lib64/R/lib:$LD_LIBRARY_PATH"

source /etc/profile

2.2 当前用户
vi ~/.bashrc

> export LD_LIBRARY_PATH="/usr/local/lib64/R/lib:$LD_LIBRARY_PATH"

source ~/.bashrc