pyRserve在R环境中的应用不像预期的那样

Question

我在R中安装了RServe，在Python中安装了pyRserve。两人都干得很好。我遵循了https://pythonhosted.org/pyRserve/manual.html文档，一切都很顺利。但是，当我试图运行与sapply相关的示例时，我会得到以下错误：

>>> conn = pyRserve.connect()
>>> conn.r.sapply(numpy.array([-1,2,3]), conn.r.abs)
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/IPython/core/interactiveshell.py", line 2827, in run_code
    exec code_obj in self.user_global_ns, self.user_ns
  File "<ipython-input-68-8dcf5b40049c>", line 1, in <module>
    conn.r.sapply(numpy.array([1, 2, 3]), conn.ref.abs)
  File "/usr/lib/python2.7/site-packages/pyRserve-0.7.3-py2.7.egg/pyRserve/rconn.py", line 301, in __call__
    return self._rconn.callFunc(self._name, *args, **kw)
  File "/usr/lib/python2.7/site-packages/pyRserve-0.7.3-py2.7.egg/pyRserve/rconn.py", line 47, in decoCheckIfClosed
    return func(self, *args, **kw)
  File "/usr/lib/python2.7/site-packages/pyRserve-0.7.3-py2.7.egg/pyRserve/rconn.py", line 190, in callFunc
    argName = arg.name
  File "/usr/lib/python2.7/site-packages/pyRserve-0.7.3-py2.7.egg/pyRserve/rconn.py", line 333, in __getattr__
    'defined in Rserve' % concatName)
NameError: no such variable or function "abs.name" defined in Rserve

我试过使用conn.ref.abs，但仍然会出现相同的错误。您知道这是否是规格的更改，还是有其他方法可以做到这一点？

谢谢!

Answer 1

这是一个迟答，但也许它仍然可以帮助别人。

在pyRserve中确实存在一个错误，即提供R函数作为函数调用的参数。这已在第0.8.1版中得到修正，现在应能如预期那样工作。