本文整理汇总了Python中numpy.nper函数的典型用法代码示例。如果您正苦于以下问题：Python nper函数的具体用法？Python nper怎么用？Python nper使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了nper函数的11个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: impact_calculator_total
def impact_calculator_total(present_value, annual_rate, payments, lump_sum, future_value=0):
# Calculate the impact (time) in throwing more money at a single debt
annual_rate /= 12
t0 = np.nper([annual_rate], [-payments], [present_value], [future_value])
t1 = np.nper([annual_rate], [-payments], [present_value - lump_sum], [future_value])
time_saved = t1 - t0
print('t {} - {} = {}'.format(t1, t0, time_saved))
impact_rate = ((annual_rate / 12 + 1) ** (t0 * 12)) - 1
money_saved = impact_rate * lump_sum
return -round(time_saved[0] * 365/12), round(money_saved[0], 2)示例2: test_broadcast
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)示例3: test_when
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, 0, 1), np.pmt(0.08 / 12, 5 * 12, 15000.0, 0, "begin"), 4)
# end
assert_almost_equal(np.pmt(0.08 / 12, 5 * 12, 15000.0, 0), np.pmt(0.08 / 12, 5 * 12, 15000.0, 0, "end"), 4)
assert_almost_equal(np.pmt(0.08 / 12, 5 * 12, 15000.0, 0, 0), np.pmt(0.08 / 12, 5 * 12, 15000.0, 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, 100000.0, 1), np.nper(0.075, -2000, 0, 100000.0, "begin"), 4)
# end
assert_almost_equal(np.nper(0.075, -2000, 0, 100000.0), np.nper(0.075, -2000, 0, 100000.0, "end"), 4)
assert_almost_equal(np.nper(0.075, -2000, 0, 100000.0, 0), np.nper(0.075, -2000, 0, 100000.0, "end"), 4)示例4: test_nper2
def test_nper2(self):
assert_almost_equal(np.nper(0.0,-2000,0,100000.),
50.0, 1)示例5: test_nper
def test_nper(self):
assert_almost_equal(np.nper(0.075,-2000,0,100000.),
21.54, 2)示例6: test_when
def test_when(self):
# begin
assert_equal(np.rate(10, 20, -3500, 10000, 1),
np.rate(10, 20, -3500, 10000, 'begin'))
# end
assert_equal(np.rate(10, 20, -3500, 10000),
np.rate(10, 20, -3500, 10000, 'end'))
assert_equal(np.rate(10, 20, -3500, 10000, 0),
np.rate(10, 20, -3500, 10000, 'end'))
# begin
assert_equal(np.pv(0.07, 20, 12000, 0, 1),
np.pv(0.07, 20, 12000, 0, 'begin'))
# end
assert_equal(np.pv(0.07, 20, 12000, 0),
np.pv(0.07, 20, 12000, 0, 'end'))
assert_equal(np.pv(0.07, 20, 12000, 0, 0),
np.pv(0.07, 20, 12000, 0, 'end'))
# begin
assert_equal(np.fv(0.075, 20, -2000, 0, 1),
np.fv(0.075, 20, -2000, 0, 'begin'))
# end
assert_equal(np.fv(0.075, 20, -2000, 0),
np.fv(0.075, 20, -2000, 0, 'end'))
assert_equal(np.fv(0.075, 20, -2000, 0, 0),
np.fv(0.075, 20, -2000, 0, 'end'))
# begin
assert_equal(np.pmt(0.08 / 12, 5 * 12, 15000., 0, 1),
np.pmt(0.08 / 12, 5 * 12, 15000., 0, 'begin'))
# end
assert_equal(np.pmt(0.08 / 12, 5 * 12, 15000., 0),
np.pmt(0.08 / 12, 5 * 12, 15000., 0, 'end'))
assert_equal(np.pmt(0.08 / 12, 5 * 12, 15000., 0, 0),
np.pmt(0.08 / 12, 5 * 12, 15000., 0, 'end'))
# begin
assert_equal(np.ppmt(0.1 / 12, 1, 60, 55000, 0, 1),
np.ppmt(0.1 / 12, 1, 60, 55000, 0, 'begin'))
# end
assert_equal(np.ppmt(0.1 / 12, 1, 60, 55000, 0),
np.ppmt(0.1 / 12, 1, 60, 55000, 0, 'end'))
assert_equal(np.ppmt(0.1 / 12, 1, 60, 55000, 0, 0),
np.ppmt(0.1 / 12, 1, 60, 55000, 0, 'end'))
# begin
assert_equal(np.ipmt(0.1 / 12, 1, 24, 2000, 0, 1),
np.ipmt(0.1 / 12, 1, 24, 2000, 0, 'begin'))
# end
assert_equal(np.ipmt(0.1 / 12, 1, 24, 2000, 0),
np.ipmt(0.1 / 12, 1, 24, 2000, 0, 'end'))
assert_equal(np.ipmt(0.1 / 12, 1, 24, 2000, 0, 0),
np.ipmt(0.1 / 12, 1, 24, 2000, 0, 'end'))
# begin
assert_equal(np.nper(0.075, -2000, 0, 100000., 1),
np.nper(0.075, -2000, 0, 100000., 'begin'))
# end
assert_equal(np.nper(0.075, -2000, 0, 100000.),
np.nper(0.075, -2000, 0, 100000., 'end'))
assert_equal(np.nper(0.075, -2000, 0, 100000., 0),
np.nper(0.075, -2000, 0, 100000., 'end'))示例7:
print u"现值"
#pv函数参数为利率，参数，每期支付金额，终值
print "Present value",np.pv(0.03/4,5*4,-10,1376.09633204)
#npv参数为利率和一个表示现金流的数组.
cashflows = np.random.randint(100,size=5)
cashflows = np.insert(cashflows,0,-100)
print "Cashflows",cashflows
print "Net present value",np.npv(0.03,cashflows)
print u"内部收益率"
print "Internal rate of return",np.irr([-100, 38, 48,90 ,17,36])
print u"分期付款"
#pmt输入为利率和期数,总价，输出每期钱数
print "Payment",np.pmt(0.10/12,12*30,100000)
#nper参数为贷款利率，固定的月供和贷款额，输出付款期数
print "Number of payments", np.nper(0.10/12,-100,9000)
#rate参数为付款期数，每期付款资金，现值和终值计算利率
print "Interest rate",12*np.rate(167,-100,9000,0)
print u"窗函数"
#bartlett函数可以计算巴特利特窗
window = np.bartlett(42)
print "bartlett",window
#blackman函数返回布莱克曼窗。该函数唯一的参数为输出点的数量。如果数量
#为0或小于0，则返回一个空数组。
window = np.blackman(10)
print "blackman",window
# hamming函数返回汉明窗。该函数唯一的参数为输出点的数量。如果数量为0或
# 小于0，则返回一个空数组。
window = np.hamming(42)
print "hamming",window示例8: myfnc
@author: ESAccount24
"""
# -*- coding: utf-8 -*-
"""
Created on Sat Sep 26 11:34:21 2015
@author: ESAccount24
"""
#financial institutions
import numpy as np
import scipy.optimize as sp
def myfnc(x):
return np.pv(x,2,0,125.44)+100.0
futval=np.fv(0.12,2,0,-100.0)
print futval
prval=np.pv(0.12,2,0,125.44)
print prval
nperiods=np.nper(0.12,0,-100.0,125.44)
print nperiods
intrate=np.rate(2,0,-100,125.44)
print intrate
initialRateGuess=0.134
#goalseek
#find interest rate that satisfies euqation connecting pv, fv, and nper
print sp.fsolve(myfnc,initialRateGuess)示例9: peab
* when : string 'begin' või 'end', valikultine
Millal makse sooritama peab (alguses või lõpus)
Näide 3
Kui laenu tagasimakse suurus on 330€ kuus, siis kui kaua kulub 68000€ suuruse
laenu maksmiseks aastase intressimäära 2.8% juures?
------------------------------------------------------------------------------
"""
print("\nNäide 3\n-------\n")
RATE = 0.03 / 12 # 4% aastas, 3.5%/12 kuus
PAYMENT = -330 # maksame 330€ kuus, '-' tähendab raha väljavoolu
PV = 68000 # laenu suurus
PERIOD_COUNT = np.nper(RATE, PAYMENT, PV)
print("{0}€ tasumiseks kulub {1:.2f} kuud ehk {2:.0f} aastat."
.format(PV, PERIOD_COUNT, PERIOD_COUNT/12)
)
PAYMENTS = np.arange(300, 350, 10)
PERIOD_COUNTS = np.nper(RATE, -PAYMENTS, PV)
for pmt, period in zip(PAYMENTS, PERIOD_COUNTS):
print("{0}€ suuruse tagasimaksega kulub {1:.2f} kuud ehk {2:.0f} aastat."
.format(pmt, period, period/12)
)
"""
------------------------------------------------------------------------------
rate -- perioodi intressimäära arvutamine
rate(nper, pmt, pv, fv, when='end', guess=0.1, tol=1e-06, maxiter=100)开发者ID:priitlatt，项目名称:sissejuhatus-finantsmatemaatikasse，代码行数:31，代码来源:sfm_yl1_intresside_rehkendamine_priit_latt.py
示例10: test_nper
def test_nper(self):
assert_almost_equal(np.nper(-.01,-100,1000),9.483283066, 3)示例11: round
import numpy as np
print
round(np.nper(0.07 / 12, -150, 8000), 5)
np.nper(*(np.ogrid[0.07 / 12: 0.08 / 12: 0.01 / 12,
-150: -99: 50,
8000: 9001: 1000]))