browseURL函数在GCP AI笔记本中不起作用

Question

我正在尝试运行rstanarm库的GLM函数。我使用rpy2库将python与R包连接起来。代码如下:

glm_post = rstanarm.stan_glm(formula, data=r_dataframe, prior=my_prior,iter=niter, chains=nchains, cores=cores)

但是我在GCP AI笔记本中得到这个错误:

/opt/conda/lib/python3.7/site-packages/rpy2/robjects/functions.py in __call__(self, *args, **kwargs)
197                 kwargs[r_k] = v
198         return (super(SignatureTranslatedFunction, self)
--> 199                 .__call__(*args, **kwargs))
200 
201 
/opt/conda/lib/python3.7/site-packages/rpy2/robjects/functions.py in __call__(self, *args, **kwargs)
123             else:
124                 new_kwargs[k] = conversion.py2rpy(v)
--> 125         res = super(Function, self).__call__(*new_args, **new_kwargs)
126         res = conversion.rpy2py(res)
127         return res
/opt/conda/lib/python3.7/site-packages/rpy2/rinterface_lib/conversion.py in _(*args, **kwargs)
43 def _cdata_res_to_rinterface(function):
44     def _(*args, **kwargs):
---> 45         cdata = function(*args, **kwargs)
46         # TODO: test cdata is of the expected CType
47         return _cdata_to_rinterface(cdata)
/opt/conda/lib/python3.7/site-packages/rpy2/rinterface.py in __call__(self, *args, **kwargs)
675             )
676             if error_occured[0]:
--> 677                 raise embedded.RRuntimeError(_rinterface._geterrmessage())
678         return res
679 
RRuntimeError: Error in utils::browseURL(paste0("file://", sinkfile_html)) : 
'browser' must be a non-empty character string

Answer 1

browseURL()是一个R函数，试图打开web浏览器以显示URL上的内容。GCP AI笔记本运行在云上，它运行的系统可能没有设置web浏览器。

你需要找到一种方法来调用R函数stan_glm()，而不需要web浏览器。

Answer 2

通过在env.sh文件中添加这一行，我能够绕过browseURL错误。

export R_BROWSER="false"