def eval(x, envir=ri.globalenv):
""" Evaluate R code. If the input object is an R expression it
evaluates it directly, if it is a string it parses it before
evaluating it.
By default the evaluation is performed in R's global environment
but a specific environment can be specified."""
if isinstance(x, str) or isinstance(x, unicode):
p = _parse(x)
else:
p = x
res = _reval(p, envir=envir)
res = conversion.ri2ro(res)
return res
def eval(x, envir = ri.globalenv):
""" Evaluate R code. If the input object is an R expression it
evaluates it directly, if it is a string it parses it before
evaluating it.
By default the evaluation is performed in R's global environment
but a specific environment can be specified."""
if isinstance(x, str) or isinstance(x, unicode):
p = _parse(x)
else:
p = x
res = _reval(p, envir = envir)
res = conversion.ri2ro(res)
return res
def set_accessors(cls, cls_name, where, acs):
# set accessors (to be abandonned for the metaclass above ?)
if where is None:
where = rinterface.globalenv
else:
where = "package:" + str(where)
where = StrSexpVector((where, ))
for r_name, python_name, as_property, docstring in acs:
if python_name is None:
python_name = r_name
r_meth = getmethod(StrSexpVector((r_name, )),
signature = StrSexpVector((cls_name, )),
where = where)
r_meth = conversion.ri2ro(r_meth)
if as_property:
setattr(cls, python_name, property(r_meth, None, None))
else:
setattr(cls, python_name, lambda self: r_meth(self))
def __new__(mcs, name, bases, cls_dict):
try:
cls_rname = cls_dict['__rname__']
except KeyError as ke:
cls_rname = name
try:
accessors = cls_dict['__accessors__']
except KeyError as ke:
accessors = []
for rname, where, \
python_name, as_property, \
docstring in accessors:
if where is None:
where = rinterface.globalenv
else:
where = "package:" + str(where)
where = StrSexpVector((where, ))
if python_name is None:
python_name = rname
signature = StrSexpVector((cls_rname, ))
r_meth = getmethod(StrSexpVector((rname, )),
signature = signature,
where = where)
r_meth = conversion.ri2ro(r_meth)
if as_property:
cls_dict[python_name] = property(r_meth, None, None,
doc = docstring)
else:
cls_dict[python_name] = lambda self: r_meth(self)
return type.__new__(mcs, name, bases, cls_dict)
def do_slot(self, name):
return conversion.ri2ro(super(RS4, self).do_slot(name))
