import numpy as np
import pandas as pd
import matplotlib as plt
import matplotlib.colors as pltcolors
import matplotlib.pyplot as plt
from pyFTS.common import Membership, Util
[docs]def plot_sets(partitioner, start=0, end=10, step=1, tam=[5, 5], colors=None,
save=False, file=None, axes=None, data=None, window_size = 1, only_lines=False):
range = np.arange(start,end,step)
ticks = []
if axes is None:
fig, axes = plt.subplots(nrows=1, ncols=1, figsize=tam)
for ct, key in enumerate(partitioner.ordered_sets):
fset = partitioner.sets[key]
if not only_lines:
for t in range:
tdisp = t - (t % window_size)
fset.membership(0, tdisp)
param = fset.perturbated_parameters[str(tdisp)]
if fset.mf == Membership.trimf:
if t == start:
line = axes.plot([t, t+1, t], param, label=fset.name)
fset.metadata['color'] = line[0].get_color()
else:
axes.plot([t, t + 1, t], param,c=fset.metadata['color'])
ticks.extend(["t+"+str(t),""])
else:
tmp = []
for t in range:
tdisp = t - (t % window_size)
fset.membership(0, tdisp)
param = fset.perturbated_parameters[str(tdisp)]
tmp.append(np.polyval(param, tdisp))
axes.plot(range, tmp, ls="--", c="blue")
axes.set_ylabel("Universe of Discourse")
axes.set_xlabel("Time")
plt.xticks([k for k in range], ticks, rotation='vertical')
handles0, labels0 = axes.get_legend_handles_labels()
lgd = axes.legend(handles0, labels0, loc=2, bbox_to_anchor=(1, 1))
if data is not None:
axes.plot(np.arange(start, start + len(data), 1), data,c="black")
plt.tight_layout()
Util.show_and_save_image(fig, file, save)
[docs]def plot_sets_conditional(model, data, step=1, size=[5, 5], colors=None,
save=False, file=None, axes=None, fig=None):
range = np.arange(0, len(data), step)
ticks = []
if axes is None:
fig, axes = plt.subplots(nrows=1, ncols=1, figsize=size)
for t in range:
model.forecast([data[t]])
perturb = model.conditional_perturbation_factors(data[t])
for ct, key in enumerate(model.partitioner.ordered_sets):
set = model.partitioner.sets[key]
set.perturbate_parameters(perturb[ct])
param = set.perturbated_parameters[str(perturb[ct])]
if set.mf == Membership.trimf:
if t == 0:
line = axes.plot([t, t+1, t], param, label=set.name)
set.metadata['color'] = line[0].get_color()
else:
axes.plot([t, t + 1, t], param,c=set.metadata['color'])
#ticks.extend(["t+"+str(t),""])
axes.set_ylabel("Universe of Discourse")
axes.set_xlabel("Time")
#plt.xticks([k for k in range], ticks, rotation='vertical')
handles0, labels0 = axes.get_legend_handles_labels()
lgd = axes.legend(handles0, labels0, loc=2, bbox_to_anchor=(1, 1))
if data is not None:
axes.plot(np.arange(0, len(data), 1), data,c="black")
plt.tight_layout()
Util.show_and_save_image(fig, file, save)
