def resultsPage(self):
results = QWizardPage()
results.setFinalPage(True)
results.setTitle('Results')
self.graph = QLabel("<font style='font-size: 16px;'>Plot</font>")
self.export = QLabel("<font style='font-size: 16px;'>Export</font>")
self.showData = QLabel("<font style='font-size: 16px;'>Data</font>")
self.plotResult = MplWidget(None)
self.plotResult.canvas.fig.set_facecolor('white')
self.resData = QLabel('')
self.resData.setAlignment(Qt.AlignCenter)
self.resData.setWordWrap(True)
self.resData.hide()
self.resFilter = ResFilter()
self.resLayout = QVBoxLayout()
self.resLayout.addWidget(self.export)
self.resLayout.addWidget(self.graph)
self.resLayout.addWidget(self.showData)
self.resLayout.addWidget(self.plotResult)
self.resLayout.addWidget(self.resData)
self.plotResult.hide()
for index in range(0, self.resLayout.count()):
try:
self.resLayout.itemAt(index).widget().setAlignment(Qt.AlignCenter)
self.resLayout.itemAt(index).widget().setStyleSheet('QLabel { color: gray; }')
self.resLayout.itemAt(index).widget().setAttribute(Qt.WA_Hover)
self.resLayout.itemAt(index).widget().installEventFilter(self.resFilter)
except Exception:
pass
self.resLayout.setAlignment(Qt.AlignCenter)
self.resLayout.setSpacing(60)
results.setLayout(self.resLayout)
return results
class MuWizard(QWizard):
def __init__(self, R=None, parent=None):
QWizard.__init__(self, parent)
self.R = R
self.data = None
self.addPage(self.introPage())
self.addPage(self.loadPage())
self.addPage(self.modelsPage())
self.addPage(self.resultsPage())
self.setWindowTitle('Wizard of muScale')
self.setPixmap(QWizard.LogoPixmap, QPixmap(RES + ICONS + LOGO))
self.setStyleSheet('QWizard {' + GRADIENT +'}\
QPushButton {\
color: #333;\
border: 1px solid #555;\
border-radius: 11px;\
padding: 2px;\
background: qradialgradient(cx: 0.3, cy: -0.4,\
fx: 0.3, fy: -0.4,\
radius: 1.35, stop: 0 #fff, stop: 1 #888);\
min-width: 80px;}\
QPushButton:hover {\
color: #fff;\
background: qradialgradient(cx: 0.3, cy: -0.4,\
fx: 0.3, fy: -0.4,\
radius: 1.35, stop: 0 #fff, stop: 1 #bbb);}\
QPushButton:pressed {\
color: #800;\
background: qradialgradient(cx: 0.4, cy: -0.1,\
fx: 0.4, fy: -0.1,\
radius: 1.35, stop: 0 #fff, stop: 1 #ddd);}\
QPushButton:checked {\
background: qradialgradient(cx: 0.4, cy: -0.1,\
fx: 0.4, fy: -0.1,\
radius: 1.35, stop: 0 #fff, stop: 1 #ddd);}\
QComboBox {\
color: #333;\
border: 1px solid #555;\
border-radius: 11px;\
padding: 1px 18px 1px 3px;\
background: qradialgradient(cx: 0.3, cy: -0.4,\
fx: 0.3, fy: -0.4,\
radius: 1.35, stop: 0 #fff, stop: 1 #888);\
min-width: 20px;}\
QComboBox:hover {\
color: #fff;\
background: qradialgradient(cx: 0.3, cy: -0.4,\
fx: 0.3, fy: -0.4,\
radius: 1.35, stop: 0 #fff, stop: 1 #bbb);}\
QComboBox::down-arrow {\
image: url(' + RES + ICONS + ARROW_DOWN + ');}\
QComboBox::down-arrow:on {\
top: 1px;\
left: 1px;}\
QComboBox::drop-down {\
subcontrol-origin: padding;\
subcontrol-position: top right;\
width: 15px;\
border-left-width: 1px;\
border-left-color: darkgray;\
border-left-style: solid;\
border-top-right-radius: 3px;\
border-bottom-right-radius: 3px;}\
QToolButton {\
color: #333;\
border: 1px solid #555;\
border-radius: 11px;\
padding: 2px;\
background: qradialgradient(cx: 0.3, cy: -0.4,\
fx: 0.3, fy: -0.4,\
radius: 1.35, stop: 0 #fff, stop: 1 #888);\
min-width: 20px;}\
QToolButton:hover {\
color: #fff;\
background: qradialgradient(cx: 0.3, cy: -0.4,\
fx: 0.3, fy: -0.4,\
radius: 1.35, stop: 0 #fff, stop: 1 #bbb);}\
QToolButton:pressed {\
background: qradialgradient(cx: 0.4, cy: -0.1,\
fx: 0.4, fy: -0.1,\
radius: 1.35, stop: 0 #fff, stop: 1 #ddd);}\
QToolButton:checked {\
background: qradialgradient(cx: 0.4, cy: -0.1,\
fx: 0.4, fy: -0.1,\
radius: 1.35, stop: 0 #fff, stop: 1 #ddd);}')
def introPage(self):
intro = QWizardPage()
intro.setTitle('Hello and welcome')
label = QLabel('''This is a wizard.
Now you're ready to forecast some time series!
''')
label.setWordWrap(True)
layout = QVBoxLayout()
layout.addWidget(label)
intro.setLayout(layout)
return intro
def loadPage(self):
load = WizardPageEx('loadCheck')
load.setTitle('Initial data')
pathLbl = QLabel("<font style='color: gray'>Specify the file with time series to forecast:</font>")
loadLbl = QLabel("<font style='color: gray'>Click</font>")
loadLbl.setAlignment(Qt.AlignCenter)
self.path = QLineEdit()
self.path.setPlaceholderText('path to file')
getPath = QToolButton()
getPath.setText('...')
self.resultLbl = QLabel()
self.resultLbl.setAlignment(Qt.AlignCenter)
self.resultLbl.hide()
self.preview = QLabel()
self.preview.setAlignment(Qt.AlignCenter)
self.preview.setWordWrap(True)
self.preview.hide()
self.preview.setAttribute(Qt.WA_Hover)
self.filter = Filter()
self.preview.installEventFilter(self.filter)
getPath.clicked.connect(self.loadData)
layout = QGridLayout()
layout.addWidget(pathLbl, 0, 0)
layout.addWidget(loadLbl, 0, 1)
layout.addWidget(self.path, 1, 0)
layout.addWidget(getPath, 1, 1)
layout.addWidget(self.resultLbl, 2, 0, 1, 2)
layout.addWidget(self.preview, 3, 0, 1, 2)
load.setLayout(layout)
load.previewSeries = SeriesPreview()
self.previewSeries = load.previewSeries
# to be able to reference from class namespace
self.loadCheck = load.check
return load
def modelsPage(self):
models = WizardPageEx('modelCheck')
models.setTitle('Forecast')
lbl = QLabel("<font style='color: gray'>Forecast horizon:</font>")
self.steps = QSpinBox()
self.steps.setRange(MIN_FORECAST, MAX_FORECAST)
self.steps.setValue(10)
self.start = QPushButton('Forecast')
self.start.clicked.connect(self.modelling)
self.custom = QPushButton('Advanced')
self.processing = QLabel()
self.gifLoading = QMovie(RES + ICONS + PROGRESS, QByteArray(), self)
self.gifLoading.setCacheMode(QMovie.CacheAll)
self.gifLoading.setSpeed(100)
self.processing.setMovie(self.gifLoading)
self.processing.setAlignment(Qt.AlignCenter)
self.processing.hide()
self.status = QLabel()
self.status.setAlignment(Qt.AlignCenter)
self.status.hide()
layout = QGridLayout()
layout.addWidget(lbl, 0, 0)
layout.addWidget(self.steps, 0, 1)
layout.addWidget(self.start, 0, 2)
layout.addWidget(self.custom, 0, 3)
layout.addWidget(self.status, 1, 0, 1, 4)
layout.addWidget(self.processing, 2, 0, 1, 4)
models.setLayout(layout)
self.customOpt = CustomOption()
self.custom.clicked.connect(self.customOpt.show)
self.modelCheck = models.check
return models
def resultsPage(self):
results = QWizardPage()
results.setFinalPage(True)
results.setTitle('Results')
self.graph = QLabel("<font style='font-size: 16px;'>Plot</font>")
self.export = QLabel("<font style='font-size: 16px;'>Export</font>")
self.showData = QLabel("<font style='font-size: 16px;'>Data</font>")
self.plotResult = MplWidget(None)
self.plotResult.canvas.fig.set_facecolor('white')
self.resData = QLabel('')
self.resData.setAlignment(Qt.AlignCenter)
self.resData.setWordWrap(True)
self.resData.hide()
self.resFilter = ResFilter()
self.resLayout = QVBoxLayout()
self.resLayout.addWidget(self.export)
self.resLayout.addWidget(self.graph)
self.resLayout.addWidget(self.showData)
self.resLayout.addWidget(self.plotResult)
self.resLayout.addWidget(self.resData)
self.plotResult.hide()
for index in range(0, self.resLayout.count()):
try:
self.resLayout.itemAt(index).widget().setAlignment(Qt.AlignCenter)
self.resLayout.itemAt(index).widget().setStyleSheet('QLabel { color: gray; }')
self.resLayout.itemAt(index).widget().setAttribute(Qt.WA_Hover)
self.resLayout.itemAt(index).widget().installEventFilter(self.resFilter)
except Exception:
pass
self.resLayout.setAlignment(Qt.AlignCenter)
self.resLayout.setSpacing(60)
results.setLayout(self.resLayout)
return results
#---- actions ----#
def loadData(self):
fileName = unicode(QFileDialog.getOpenFileName(self, 'Open text file', RES))
if fileName:
self.resultLbl.hide()
self.preview.hide()
if DataParser.istextfile(fileName):
self.data = DataParser.getTimeSeriesFromTextData(data=open(fileName, 'r').read())
if len(self.data[0]) > DATA_LOW_LIMIT:
self.resultLbl.setText("<font style='color: gray'>Success! Loaded<b> " + str(len(self.data[0])) +
'</b> values, errors: <b>' + str(
self.data[1]) + '</b></font>')
self.resultLbl.show()
self.path.setText(fileName)
previewLength = 40
self.preview.setText("<font style='color: gray'><b>Preview:</b> "+ ' '.join(
[str(e) for e in self.data[0][:previewLength]]) +
"...</font>")
self.previewSeries.updateData(self.data)
self.preview.show()
self.loadCheck.setChecked(True)
else:
self.resultLbl.setText("<font style='color: gray'>Not enough values to form data series.</font>")
self.resultLbl.show()
else:
self.resultLbl.setText("<font style='color: gray'>Specified file is binary file!</font>")
self.resultLbl.show()
def modelling(self):
self.processing.show()
self.gifLoading.start()
self.status.setText('')
statusText = u"<font style='color: gray'>"
# decomposition #
if self.customOpt.options['enable']:
self.signalEx = self.customOpt.options['signal']
self.wavelet = pywt.Wavelet(self.customOpt.options['wavelet'])
wLevel = self.customOpt.options['lvls'] - 1
maxLevel = pywt.dwt_max_level(len(self.data[0]), self.wavelet)
if wLevel > maxLevel:
wLevel = maxLevel
self.wInitialCoefficients = pywt.wavedec(self.data[0], self.wavelet,
level=wLevel, mode=self.signalEx)
self.wCoefficients = self.wInitialCoefficients
else:
self.signalEx = pywt.MODES.sp1
selected = select_wavelet(self.data[0], self.R)
index = max(selected)
self.wavelet = pywt.Wavelet(selected[index][1])
wLevel = calculate_suitable_lvl(self.data[0],
self.wavelet, self.R, swt=False)
self.wInitialCoefficients = pywt.wavedec(self.data[0], self.wavelet,
level=wLevel, mode=self.signalEx)
self.wCoefficients = self.wInitialCoefficients
statusText += 'Wavelet: <b>' + self.wavelet.family_name + \
'</b> (' + self.wavelet.name + ', ' + self.wavelet.symmetry + ', orthogonal: ' + \
str(self.wavelet.orthogonal) + ')<br/>'
statusText += 'Discrete Wavelet Transfom: <b>' + str(wLevel + 1) + ' levels</b><br/>'
# models #
options = {}
options['multi'] = True
options['fractal'] = False
options['ljung'] = False
self.models = auto_model(self.wCoefficients, self.R, options, self.data[0])
statusText += '<br/>Selected models:<br/>'
for lvl, model in self.models.iteritems():
statusText += str(lvl) + '. <b>' + model.enumname.replace('_', ' ') + '</b><br/>'
# forecasting #
try:
frequency = self.customOpt.options['frequency']
except Exception:
frequency = 8
aic = False
options['hw_gamma'] = True
options['hw_model'] = 'additive'
options['hw_period'] = frequency
options['ar_aic'] = aic
options['ar_method'] = 'burg'
options['ar_order'] = 50
options['arima_auto'] = False
options['arima_nons'] = True
options['arima_nons_order'] = [6, 0, 9]
options['arima_seas'] = True
options['arima_seas_order'] = [9, 0, 1]
options['lsf_aic'] = aic
options['lsf_order'] = 30
options['ets_auto'] = aic
options['ets_period'] = frequency
options['sts_type'] = 'trend'
options['append_fit'] = True
self.multi_model_thread = MultiModelThread(self.models,
self.wCoefficients,
self.R,
self.steps.value(),
options,)
self.multi_model_thread.done.connect(self.multiForecastFinished)
self.multi_model_thread.start()
statusText += '<br/>Forecasting...'
self.status.setText(statusText)
self.status.show()
def multiForecastFinished(self, results):
self.forecast = results
self.gifLoading.stop()
self.processing.hide()
self.status.setText('<br/>'.join(str(self.status.text()).split('<br/>')[:-1]) +
'<br/>Forecast complete.')
self.modelCheck.setChecked(True)
#---- results -----#
def togglePlot(self):
if self.plotResult.isVisible():
self.plotResult.hide()
self.export.show()
self.showData.show()
self.resLayout.setSpacing(60)
else:
self.updateGraph()
self.plotResult.show()
self.export.hide()
self.showData.hide()
self.resLayout.setSpacing(5)
def toggleData(self):
if self.resData.isVisible():
self.export.show()
self.graph.show()
self.showData.show()
self.resData.hide()
self.resLayout.setSpacing(60)
self.adjustSize()
else:
self.plotResult.hide()
self.graph.hide()
self.export.hide()
self.showData.show()
self.resData.show()
self.resLayout.setSpacing(5)
res = self.inverseWT()
max = len(self.data[0]) - 1
resText = '<table border="0" align="center" style="border-style: groove;">'
resText += '<tr><td align="center"><i>Initial</i></td><td align="center"><i>Forecast</i></td></tr>'
resText += '<tr><td align="center">...</td><td></td></tr>'
table = zip(self.data[0][max-10:max], res[max-10:max])
for i, j in table:
resText += '<tr>'
resText += '<td align="center">' + str(i) + '</td>'
resText += '<td align="center">' + str(j) + '</td>'
resText += '</tr>'
for e in res[max+1:max+10]:
resText += '<tr>'
resText += '<td align="center"></td>'
resText += '<td align="center">' + str(e) + '</td>'
resText += '</tr>'
resText += '<tr><td align="center"></td><td align="center">...</td></tr>'
resText += '</table>'
self.resData.setText(resText)
self.adjustSize()
def inverseWT(self):
return pywt.waverec(update_dwt([e [1] for e in self.forecast], self.wavelet, self.signalEx),
self.wavelet, mode=self.signalEx)
def updateGraph(self):
self.plotResult.updatePlot(self.inverseWT(), label='Simulation', color='r')
self.plotResult.updatePlot(self.data[0], label='Time series', color='b')
def exportToXls(self):
# opening file dialog
fileName = QFileDialog.getSaveFileName(self,
'Save as', RES, 'Microsoft Excel Spreadsheet (*.xls)')
if fileName.count() > 0:
try:
COLUMN_WIDTH = 3000
alignment = Alignment()
alignment.horizontal = Alignment.HORZ_CENTER
alignment.vertical = Alignment.VERT_CENTER
borders = Borders()
borders.left = Borders.THIN
borders.right = Borders.THIN
borders.top = Borders.THIN
borders.bottom = Borders.THIN
style = XFStyle()
style.alignment = alignment
style.borders = borders
font = Font()
font.bold = True
headerStyle = XFStyle()
headerStyle.font = font
separate = Borders()
separate.left = Borders.THIN
separate.right = Borders.DOUBLE
separate.top = Borders.THIN
separate.bottom = Borders.THIN
separateStyle = XFStyle()
separateStyle.borders = separate
book = Workbook(encoding='utf-8')
# modelling data
dec_sheet = book.add_sheet('Data decomposition')
# decomposition data
# initial data
column = 0
row = 0
dec_sheet.write(row, column, 'Time series', headerStyle)
dec_sheet.col(column).width = COLUMN_WIDTH
row += 1
for item in self.data[0]:
dec_sheet.write(row, column, item, separateStyle)
row += 1
# decomposition
for lvl in self.wCoefficients:
row = 0
column += 1
dec_sheet.write(row, column, 'Level' + str(column - 1), headerStyle)
dec_sheet.col(column).width = COLUMN_WIDTH
row += 1
for item in lvl:
dec_sheet.write(row, column, item, style)
row += 1
# decomposition graphs
pass
levels_sheet = book.add_sheet('Multiscale forecast')
# levels data
column = 0
for lvl in self.forecast:
row = 0
levels_sheet.write(row, column, 'Level' + str(column), headerStyle)
levels_sheet.col(column).width = COLUMN_WIDTH
row += 1
for item in lvl[1]:
levels_sheet.write(row, column, float(item), style)
row += 1
column += 1
result_sheet = book.add_sheet('Results')
# initial
column = 0
row = 0
result_sheet.write(row, column, 'Initial data', headerStyle)
result_sheet.col(column).width = COLUMN_WIDTH
row += 1
for item in self.data[0]:
result_sheet.write(row, column, item, separateStyle)
row += 1
# forecast
row = 0
column += 1
result_sheet.write(row, column, 'Forecast', headerStyle)
result_sheet.col(column).width = COLUMN_WIDTH
row += 1
for item in self.inverseWT():
result_sheet.write(row, column, item, style)
row += 1
row = 0
column = 2
self.updateGraph()
self.plotResult.saveFigure('forecast', format='bmp')
result_sheet.insert_bitmap(RES + TEMP + 'forecast.bmp', row, column)
# saving xls
try:
book.save(unicode(fileName))
except Exception:
pass
except Exception, e:
pass