In [1]:

from siuba.dply.verbs import Var, VarList, var_select
from siuba import _
import pandas as pd
from pandas import DataFrame, Series

exclusion¶

In [2]:

v = VarList()
colnames = ['a', 'b', 'c', 'd']
var_select(
    colnames,
    v.x == v.a,
    -v.d,
    )

Out[2]:

OrderedDict([('a', 'x'), ('b', None), ('c', None)])

methods¶

In [3]:

colnames = ["home_phone", "home_address", "other", "misc"]
var_select(
    colnames,
    v.startswith("home"),
    v.misc
)

Out[3]:

OrderedDict([('home_phone', None), ('home_address', None), ('misc', None)])

In [4]:

colnames = ["home_phone", "home_address", "other", "misc"]
var_select(
    colnames,
    v[v.home_phone:v.home_address]
)

Out[4]:

OrderedDict([('home_phone', None), ('home_address', None)])

In [5]:

f = _.startswith("a")
f(v)

Out[5]:

Var('_.startswith('a')', negated = False, alias = None)