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example.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
from random import randrange
import pandas as pd
import numpy as np
from pytrendseries import detecttrend
from pytrendseries import vizplot
'''Testing examples with integer random data'''
def random_integer_and_continuously_increasing_data(janela, trend, limit): # pragma: no cove
random_series = [i+randrange(10) for i in range(1,101)]
random_series = pd.DataFrame(random_series)
random_series.index = sorted(pd.to_datetime(np.random.randint(1, 101, size=100), unit='d').tolist())
random_series.columns = ["random"]
random_series = random_series[["random"]]
random_series["random"].plot()
getTrend3 = detecttrend.detecttrend(random_series, trend=trend, limit=limit, window=janela)
vizplot.plot_trend(random_series, getTrend3, "random", trend)
return getTrend3
janela, trend, limit = 3, "downtrend", 2
random_integer_and_continuously_increasing_data(janela, trend, limit)
janela, trend, limit = 3, "uptrend", 2
random_integer_and_continuously_increasing_data(janela, trend, limit)
def random_integer_and_continuously_decreasing_data(janela, trend, limit): # pragma: no cove
random_series = [i+randrange(10) for i in reversed(range(1,101))]
random_series = pd.DataFrame(random_series)
random_series.index = sorted(pd.to_datetime(np.random.randint(1, 101, size=100), unit='d').tolist())
random_series.columns = ["random"]
random_series = random_series[["random"]]
random_series["random"].plot()
getTrend3 = detecttrend.detecttrend(random_series, trend=trend, limit=limit,
window=janela)
vizplot.plot_trend(random_series, getTrend3, "random", trend)
return getTrend3
'''Testing downtrend with integer values in a serie with no uptrend'''
janela, trend, limit = 3, "downtrend", 2
random_integer_and_continuously_decreasing_data(janela, trend, limit)
'''Testing uptrend with integer values in a serie with no uptrend'''
janela, trend, limit = 3, "uptrend", 2
random_integer_and_continuously_decreasing_data(janela, trend, limit)
'''Testing examples with float random data'''
def sine_random_values_testing(janela, trend, limit): # pragma: no cove
x = np.linspace(1, 101)
def f(x):
return np.sin(x) + np.random.normal(scale=0.1, size=len(x))
random_series = pd.DataFrame(f(x))
random_series.index = sorted(pd.to_datetime(np.random.randint(1, 101, size=50), unit='d').tolist())
random_series.columns = ["random"]
random_series = random_series[["random"]]
random_series["random"].plot()
getTrend3 = detecttrend.detecttrend(random_series, trend=trend, limit=limit,
window=janela)
vizplot.plot_trend(random_series, getTrend3, "random", trend)
return getTrend3
'''Testing downtrend with float values in a series without long period trend'''
janela, trend, limit = 2, "downtrend", 2
sine_random_values_testing(janela, trend, limit)
'''Testing downtrend with float values in a series without trend'''
janela, trend, limit = 20, "downtrend", 12
sine_random_values_testing(janela, trend, limit)