typehint: Additional Type Information

In PythonInR: Use Python from Within R

Description

The function typehint allows to set / get additional type information in a structured way. Similar to as..* (e.g. as.list) PythonInR provides th..* (e.g. th.list) functions to control the type conversion done by PythonInR.

Usage

th.int(x)

th.long(x)

th.float(x)

th.string(x)

th.unicode(x)

th.vector(x)

th.vector_int(x)

th.vector_str(x)

th.list(x)

th.list_int(x)

th.list_str(x)

th.tuple(x)

th.tuple_int(x)

th.tuple_str(x)

th.ttuple(x)

th.ttuple_int(x)

th.ttuple_str(x)

th.tlist(x)

th.tlist_str(x)

th.tlist_int(x)

th.numpy(x)

th.numpy_int(x)

th.numpy_str(x)

th.scibsr(x)

th.scicoo(x)

th.scicsc(x)

th.scicsr(x)

th.scidia(x)

th.scidok(x)

th.scilil(x)

th.cvxopt(x)

th.pandas(x)

Arguments

x	an R object

Details

Since typehints are implemented as comments one can use the comment command directly to avoid copying.

Examples

pySet("vec", 1:3) ## v will be assigned as PythonInR.vector
pyType("vec")
## li will be assigned as list, where the elements are of type long
pySet("li", th.list(1:3)) 
pyType("li")
pySet("li_int", th.list_int(1:3)) 
pyType("li_int")
pySet("x", th.tuple(list(1, 2))) ## x will be assigned as tuple
pyType("x")

PythonInR documentation built on May 2, 2019, 5:17 p.m.