rpy2错误加载特定包，给定正确的目录

Question

我用rpy2在python中成功地调用了R包。但是，我今天刚在R中安装了elasticnet，我检查了我可以在R中加载库，而且包名文件夹elasticnet也在我的目录中。在

我想使用importr与其他包执行相同的调用，但它总是给我错误消息：

Error in loadNamepace(name): there is no package called 'elasticnet'.

但是我去了那个地址，看到了这个包，在R里我可以看到这个包已经安装好了。有人知道怎么解决这个问题吗？在

这是我在python中调用其他包的方式，例如pls包：

import rpy2
import rpy2.robjects as ro
from rpy2.robjects.packages import importr

utils = importr("utils")
d = {'print.me': 'print_dot_me', 'print_me': 'print_uscore_me'}

pls = importr('pls', robject_translations = d, lib_loc = "/Users/Viii/Anaconda3/envs/rstudio/lib/R/library")

但是当我用elasticnet替换它时，它就不起作用了。在

它给我的错误信息是

"RRuntimeWarning: 'package 'lars' was installed by an R version with different internals; it needs to be reinstalled for use with this R version'.

我也尝试安装glmnet，它也会给出错误消息

^{pr2}$

Traceback (most recent call last):

File , line 1, in en = importr('glmnet', robject_translations = d, lib_loc = "/Users/Viii/Anaconda3/envs/rstudio/lib/R/library")

File "C:\Users\Viii\Anaconda3\lib\site-packages\rpy2-2.9.4-py3.6-win-amd64.egg\rpy2\robjects\packages.py", line 453, in importr env = _get_namespace(rname)

RRuntimeError: Error in loadNamespace(name) : there is no package called 'glmnet'

R中的sessioninfo:

R version 3.5.0 (2018-04-23)
Platform: x86_64-conda_cos6-linux-gnu (64-bit)
Running under: Ubuntu 16.04.5 LTS

Matrix products: default
BLAS/LAPACK: /home/viii/anaconda3/envs/rstudio/lib/R lib/libRblas.so

locale:
[1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C              
[3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8    
[5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8   
[7] LC_PAPER=en_US.UTF-8       LC_NAME=C                 
[9] LC_ADDRESS=C               LC_TELEPHONE=C            
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods [7] base     

other attached packages:
[1] elasticnet_1.1.1 lars_1.2        

loaded via a namespace (and not attached):
[1] compiler_3.5.0 tools_3.5.0    yaml_2.1.18