在rpy2中加载R包"rugarch“时rpy2错误

Question

我试图使用rpy2加载库rugarch，但遇到了以下错误。这似乎与依赖多酷有关。签入R，这两个库都可以在没有错误的情况下加载。有人能帮忙调查一下吗？非常感谢!

from rpy2.robjects import r
r("""library(rugarch)""")

Traceback (most recent call last):

  File "<ipython-input-15-07367cb75221>", line 1, in <module>
    r("""library(rugarch)""")

  File "C:\ProgramData\Anaconda3\lib\site-packages\rpy2-2.9.0-py3.6-win-amd64.egg\rpy2\robjects\__init__.py", line 352, in __call__
    res = self.eval(p)

  File "C:\ProgramData\Anaconda3\lib\site-packages\rpy2-2.9.0-py3.6-win-amd64.egg\rpy2\robjects\functions.py", line 178, in __call__
    return super(SignatureTranslatedFunction, self).__call__(*args, **kwargs)

  File "C:\ProgramData\Anaconda3\lib\site-packages\rpy2-2.9.0-py3.6-win-amd64.egg\rpy2\robjects\functions.py", line 106, in __call__
    res = super(Function, self).__call__(*new_args, **new_kwargs)

RRuntimeError: Error: package or namespace load failed for 'rugarch' in .doLoadActions(where, attach):
 error in load action .__A__.1 for package multicool: loadModule(module = "Multicool", what = TRUE, env = ns, loadNow = TRUE): Unable to load module "Multicool": negative length vectors are not allowed

Answer 1

RR和Python (然后通过rpy2调用R)几乎可以肯定地运行在不同的环境中。因此，可以在前者中加载Multicool，但不能在后者中加载。

(注: rpy2在Windows上不受官方支持)