/usr/lib/python2.7/dist-packages/numpy/lib/tests/test_financial.py is in python-numpy 1:1.12.1-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 | from __future__ import division, absolute_import, print_function
import numpy as np
from numpy.testing import (
run_module_suite, TestCase, assert_, assert_almost_equal,
assert_allclose, assert_equal
)
class TestFinancial(TestCase):
def test_rate(self):
assert_almost_equal(np.rate(10, 0, -3500, 10000),
0.1107, 4)
def test_irr(self):
v = [-150000, 15000, 25000, 35000, 45000, 60000]
assert_almost_equal(np.irr(v), 0.0524, 2)
v = [-100, 0, 0, 74]
assert_almost_equal(np.irr(v), -0.0955, 2)
v = [-100, 39, 59, 55, 20]
assert_almost_equal(np.irr(v), 0.28095, 2)
v = [-100, 100, 0, -7]
assert_almost_equal(np.irr(v), -0.0833, 2)
v = [-100, 100, 0, 7]
assert_almost_equal(np.irr(v), 0.06206, 2)
v = [-5, 10.5, 1, -8, 1]
assert_almost_equal(np.irr(v), 0.0886, 2)
# Test that if there is no solution then np.irr returns nan
# Fixes gh-6744
v = [-1, -2, -3]
assert_equal(np.irr(v), np.nan)
def test_pv(self):
assert_almost_equal(np.pv(0.07, 20, 12000, 0), -127128.17, 2)
def test_fv(self):
assert_almost_equal(np.fv(0.075, 20, -2000, 0, 0), 86609.36, 2)
def test_pmt(self):
res = np.pmt(0.08/12, 5*12, 15000)
tgt = -304.145914
assert_allclose(res, tgt)
# Test the edge case where rate == 0.0
res = np.pmt(0.0, 5*12, 15000)
tgt = -250.0
assert_allclose(res, tgt)
# Test the case where we use broadcast and
# the arguments passed in are arrays.
res = np.pmt([[0.0, 0.8],[0.3, 0.8]],[12, 3],[2000, 20000])
tgt = np.array([[-166.66667, -19311.258],[-626.90814, -19311.258]])
assert_allclose(res, tgt)
def test_ppmt(self):
np.round(np.ppmt(0.1/12, 1, 60, 55000), 2) == 710.25
def test_ipmt(self):
np.round(np.ipmt(0.1/12, 1, 24, 2000), 2) == 16.67
def test_nper(self):
assert_almost_equal(np.nper(0.075, -2000, 0, 100000.),
21.54, 2)
def test_nper2(self):
assert_almost_equal(np.nper(0.0, -2000, 0, 100000.),
50.0, 1)
def test_npv(self):
assert_almost_equal(
np.npv(0.05, [-15000, 1500, 2500, 3500, 4500, 6000]),
122.89, 2)
def test_mirr(self):
val = [-4500, -800, 800, 800, 600, 600, 800, 800, 700, 3000]
assert_almost_equal(np.mirr(val, 0.08, 0.055), 0.0666, 4)
val = [-120000, 39000, 30000, 21000, 37000, 46000]
assert_almost_equal(np.mirr(val, 0.10, 0.12), 0.126094, 6)
val = [100, 200, -50, 300, -200]
assert_almost_equal(np.mirr(val, 0.05, 0.06), 0.3428, 4)
val = [39000, 30000, 21000, 37000, 46000]
assert_(np.isnan(np.mirr(val, 0.10, 0.12)))
def test_when(self):
#begin
assert_almost_equal(np.rate(10, 20, -3500, 10000, 1),
np.rate(10, 20, -3500, 10000, 'begin'), 4)
#end
assert_almost_equal(np.rate(10, 20, -3500, 10000),
np.rate(10, 20, -3500, 10000, 'end'), 4)
assert_almost_equal(np.rate(10, 20, -3500, 10000, 0),
np.rate(10, 20, -3500, 10000, 'end'), 4)
# begin
assert_almost_equal(np.pv(0.07, 20, 12000, 0, 1),
np.pv(0.07, 20, 12000, 0, 'begin'), 2)
# end
assert_almost_equal(np.pv(0.07, 20, 12000, 0),
np.pv(0.07, 20, 12000, 0, 'end'), 2)
assert_almost_equal(np.pv(0.07, 20, 12000, 0, 0),
np.pv(0.07, 20, 12000, 0, 'end'), 2)
# begin
assert_almost_equal(np.fv(0.075, 20, -2000, 0, 1),
np.fv(0.075, 20, -2000, 0, 'begin'), 4)
# end
assert_almost_equal(np.fv(0.075, 20, -2000, 0),
np.fv(0.075, 20, -2000, 0, 'end'), 4)
assert_almost_equal(np.fv(0.075, 20, -2000, 0, 0),
np.fv(0.075, 20, -2000, 0, 'end'), 4)
# begin
assert_almost_equal(np.pmt(0.08/12, 5*12, 15000., 0, 1),
np.pmt(0.08/12, 5*12, 15000., 0, 'begin'), 4)
# end
assert_almost_equal(np.pmt(0.08/12, 5*12, 15000., 0),
np.pmt(0.08/12, 5*12, 15000., 0, 'end'), 4)
assert_almost_equal(np.pmt(0.08/12, 5*12, 15000., 0, 0),
np.pmt(0.08/12, 5*12, 15000., 0, 'end'), 4)
# begin
assert_almost_equal(np.ppmt(0.1/12, 1, 60, 55000, 0, 1),
np.ppmt(0.1/12, 1, 60, 55000, 0, 'begin'), 4)
# end
assert_almost_equal(np.ppmt(0.1/12, 1, 60, 55000, 0),
np.ppmt(0.1/12, 1, 60, 55000, 0, 'end'), 4)
assert_almost_equal(np.ppmt(0.1/12, 1, 60, 55000, 0, 0),
np.ppmt(0.1/12, 1, 60, 55000, 0, 'end'), 4)
# begin
assert_almost_equal(np.ipmt(0.1/12, 1, 24, 2000, 0, 1),
np.ipmt(0.1/12, 1, 24, 2000, 0, 'begin'), 4)
# end
assert_almost_equal(np.ipmt(0.1/12, 1, 24, 2000, 0),
np.ipmt(0.1/12, 1, 24, 2000, 0, 'end'), 4)
assert_almost_equal(np.ipmt(0.1/12, 1, 24, 2000, 0, 0),
np.ipmt(0.1/12, 1, 24, 2000, 0, 'end'), 4)
# begin
assert_almost_equal(np.nper(0.075, -2000, 0, 100000., 1),
np.nper(0.075, -2000, 0, 100000., 'begin'), 4)
# end
assert_almost_equal(np.nper(0.075, -2000, 0, 100000.),
np.nper(0.075, -2000, 0, 100000., 'end'), 4)
assert_almost_equal(np.nper(0.075, -2000, 0, 100000., 0),
np.nper(0.075, -2000, 0, 100000., 'end'), 4)
def test_broadcast(self):
assert_almost_equal(np.nper(0.075, -2000, 0, 100000., [0, 1]),
[21.5449442, 20.76156441], 4)
assert_almost_equal(np.ipmt(0.1/12, list(range(5)), 24, 2000),
[-17.29165168, -16.66666667, -16.03647345,
-15.40102862, -14.76028842], 4)
assert_almost_equal(np.ppmt(0.1/12, list(range(5)), 24, 2000),
[-74.998201, -75.62318601, -76.25337923,
-76.88882405, -77.52956425], 4)
assert_almost_equal(np.ppmt(0.1/12, list(range(5)), 24, 2000, 0,
[0, 0, 1, 'end', 'begin']),
[-74.998201, -75.62318601, -75.62318601,
-76.88882405, -76.88882405], 4)
if __name__ == "__main__":
run_module_suite()
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