最近尝试用R进行些简单的机器学习，在笔记本上配置好了环境，能正常运行代码；而在台式机上不能正常运行。经过自己尝试，结合资料，把一点经验记录如下：

不想安装Anaconda这条大蟒蛇，在Python环境设置时用miniconda。

>>>>1 必须安装miniconda
library(reticulate)
install_miniconda()

>>>>2 安装 tensorflow，在RStudio中选择相应环境的python
>>(1) 安装虚拟环境
  Try to follow the guide at   https://tensorflow.rstudio.com/installation/:
In your R-studio console :
    install.packages(tensorflow)
    library(tensorflow)
    install_tensorflow()
If you have not installed Anaconda / Miniconda manually, then at step no. 3, a prompt will ask your permission to install Miniconda. If you already have conda installed, then :
    Create new environment r-reticulate in conda : conda create -n r-reticulate
    Install tensorflow from R-studio console with parameters : install_tensorflow(method = 'conda', envname = 'r-reticulate')
---if not worked---
after Create new environment r-reticulate in conda
conda activate env r-reticulate
pip install tensorflow
下载之前建议设置pip清华源（用以提速）
设置下载源    pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
可以安装特定版本 pip install tensorflow==2.6.0
----then---
    Load the reticulate package library(reticulate)
    Activate the conda environment in R-studio use_condaenv('r-reticulate')
    Load the tensorflow libray library(tensorflow)
    Check if tensorflow is active tf$constant("Hellow Tensorflow")
>> （2）不安装虚拟环境，直接在conda 的 base 环境下，pip install tensorflow
在RStudio中，install.packages(tensorflow)    library(tensorflow)    install_tensorflow()会出现Error: could not find a Python environment for C:/Users/Admin/AppData/Local/r-miniconda/python.exe 错误。但是， R代码能正常运行。

>>>>！！！！如果以上都试过了，还不行。重新安装R，再按以上步骤操作！！！