Files
mt5-correlation/mt5_correlation/gui.py
T

626 lines
28 KiB
Python

import wx
import wx.grid
import matplotlib.pyplot as plt
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas
import matplotlib.dates
import matplotlib
from mt5_correlation.correlation import Correlation
from mt5_correlation.config import Config, SettingsDialog
from datetime import datetime, timedelta
import pytz
import pandas as pd
import logging
import logging.config
matplotlib.use('WXAgg')
class MonitorFrame(wx.Frame):
__cor = None
__rows = 0 # Need to track as we need to notify grid if row count changes.
__opened_filename = None # So we can save to same file as we opened
__config = None # The applications config
__selected_correlation = [] # List of Symbol 1 & Symbol 2
# Columns for coefficient table
COLUMN_INDEX = 0
COLUMN_SYMBOL1 = 1
COLUMN_SYMBOL2 = 2
COLUMN_BASE_COEFFICIENT = 3
COLUMN_DATE_FROM = 4
COLUMN_DATE_TO = 5
COLUMN_TIMEFRAME = 6
COLUMN_LAST_CHECK = 7
COLUMN_LAST_COEFFICIENT = 8
def __init__(self):
# Super
wx.Frame.__init__(self, parent=None, id=wx.ID_ANY, title="Divergence Monitor",
pos=wx.Point(x=Config().get('window.x'),
y=Config().get('window.y')),
size=wx.Size(width=Config().get('window.width'),
height=Config().get('window.height')),
style=Config().get('window.style'))
# Create logger and get config
self.__log = logging.getLogger(__name__)
self.__config = Config()
# Create correlation instance to maintain state of calculated coefficients. Set min coefficient from config
self.__cor = Correlation()
self.__cor.monitoring_threshold = self.__config.get("monitor.monitoring_threshold")
# Status bar
self.statusbar = self.CreateStatusBar(1)
# Menu Bar and file menu
self.menubar = wx.MenuBar()
file_menu = wx.Menu()
# File menu items
menu_item_open = file_menu.Append(wx.ID_ANY, "Open", "Open correlations file.")
menu_item_save = file_menu.Append(wx.ID_ANY, "Save", "Save correlations file.")
menu_item_saveas = file_menu.Append(wx.ID_ANY, "Save As", "Save correlations file.")
file_menu.AppendSeparator()
menu_item_calculate = file_menu.Append(wx.ID_ANY, "Calculate", "Calculate base coefficients.")
file_menu.AppendSeparator()
menu_item_settings = file_menu.Append(wx.ID_ANY, "Settings", "Change application settings.")
file_menu.AppendSeparator()
menu_item_exit = file_menu.Append(wx.ID_ANY, "Exit", "Close the application")
# Add file menu and set menu bar
self.menubar.Append(file_menu, "File")
self.SetMenuBar(self.menubar)
# Main window. We want 2 horizontal sections, the grid showing correlations and a graph. In the correlations
# section, we want 2 vertical sections, the monitor toggle and the correlations grid. For the toggle we want 2
# sections, a label and a toggle.
# ---------------------------------------------------------------
# |label | toggle | |
# |-----------------------| |
# | | |
# |Correlations Grid | Graphs |
# | | |
# | | |
# | | |
# | | |
# ----------------------------------------------------------------
panel = wx.Panel(self, wx.ID_ANY)
toggle_sizer = wx.BoxSizer(wx.HORIZONTAL) # Label and toggle
correlations_sizer = wx.BoxSizer(wx.VERTICAL) # Toggle sizer and correlations grid
self.__main_sizer = wx.BoxSizer(wx.HORIZONTAL) # Correlations sizer and graphs panel
panel.SetSizer(self.__main_sizer)
# Create the label and toggle, populate the toggle sizer and add the toggle sizer to the correlations sizer
monitor_toggle_label = wx.StaticText(panel, id=wx.ID_ANY, label="Monitoring")
toggle_sizer.Add(monitor_toggle_label, 0, wx.ALL, 1)
self.monitor_toggle = wx.ToggleButton(panel, wx.ID_ANY, label="Off")
self.monitor_toggle.SetBackgroundColour(wx.RED)
toggle_sizer.Add(self.monitor_toggle, 0, wx.ALL, 1)
correlations_sizer.Add(toggle_sizer, 0, wx.ALL, 1)
# Create the correlations grid. This is a data table using pandas dataframe for underlying data. Add the
# correlations_grid to the correlations sizer.
self.table = DataTable(self.__cor.filtered_coefficient_data)
self.grid_correlations = wx.grid.Grid(panel, wx.ID_ANY)
self.grid_correlations.SetTable(self.table, takeOwnership=True)
self.grid_correlations.EnableEditing(False)
self.grid_correlations.EnableDragRowSize(False)
self.grid_correlations.EnableDragColSize(False)
self.grid_correlations.EnableDragGridSize(False)
self.grid_correlations.SetSelectionMode(wx.grid.Grid.SelectRows)
self.grid_correlations.SetRowLabelSize(0)
self.grid_correlations.SetColSize(self.COLUMN_INDEX, 0) # Index. Hide
self.grid_correlations.SetColSize(self.COLUMN_SYMBOL1, 100) # Symbol 1
self.grid_correlations.SetColSize(self.COLUMN_SYMBOL2, 100) # Symbol 2
self.grid_correlations.SetColSize(self.COLUMN_BASE_COEFFICIENT, 100) # Base Coefficient
self.grid_correlations.SetColSize(self.COLUMN_DATE_FROM, 0) # UTC Date From. Hide
self.grid_correlations.SetColSize(self.COLUMN_DATE_TO, 0) # UTC Date To. Hide
self.grid_correlations.SetColSize(self.COLUMN_TIMEFRAME, 0) # Timeframe. Hide.
self.grid_correlations.SetColSize(self.COLUMN_LAST_CHECK, 100) # Last Check
self.grid_correlations.SetColSize(self.COLUMN_LAST_COEFFICIENT, 100) # Last Coefficient
self.grid_correlations.SetMinSize((520, 500))
self.grid_correlations.SetMaxSize((520, -1))
correlations_sizer.Add(self.grid_correlations, 1, wx.ALL | wx.EXPAND, 1)
# Create the charts and hide as we have no data to display yet
self.__graph = GraphPanel(panel)
self.__graph.Hide()
# Add the correlations sizer and the charts to the main sizer.
self.__main_sizer.Add(correlations_sizer, 0, wx.ALL | wx.EXPAND, 1)
self.__main_sizer.Add(self.__graph, 1, wx.ALL | wx.EXPAND, 1)
# Layout the window.
self.Layout()
# Set up timer to refresh grid
self.timer = wx.Timer(self)
# Bind monitor button
self.monitor_toggle.Bind(wx.EVT_TOGGLEBUTTON, self.monitor)
# Bind timer
self.Bind(wx.EVT_TIMER, self.__timer_event, self.timer)
# Bind menu items
self.Bind(wx.EVT_MENU, self.open_file, menu_item_open)
self.Bind(wx.EVT_MENU, self.save_file, menu_item_save)
self.Bind(wx.EVT_MENU, self.save_file_as, menu_item_saveas)
self.Bind(wx.EVT_MENU, self.calculate_coefficients, menu_item_calculate)
self.Bind(wx.EVT_MENU, self.open_settings, menu_item_settings)
self.Bind(wx.EVT_MENU, self.quit, menu_item_exit)
# Bind row select
self.Bind(wx.grid.EVT_GRID_SELECT_CELL, self.select_cell, self.grid_correlations)
# Bind window close event
self.Bind(wx.EVT_CLOSE, self.on_close, self)
def open_file(self, event):
with wx.FileDialog(self, "Open Coefficients file", wildcard="cpd (*.cpd)|*.cpd",
style=wx.FD_OPEN | wx.FD_FILE_MUST_EXIST) as fileDialog:
if fileDialog.ShowModal() == wx.ID_CANCEL:
return # the user changed their mind
# Load the file chosen by the user.
self.__opened_filename = fileDialog.GetPath()
self.SetStatusText(f"Loading file {self.__opened_filename}.")
self.__cor.load(self.__opened_filename)
# Refresh data in grid
self.refresh_grid()
self.SetStatusText(f"File {self.__opened_filename} loaded.")
def save_file(self, event):
self.SetStatusText(f"Saving file as {self.__opened_filename}")
if self.__opened_filename is None:
self.save_file_as(event)
else:
self.__cor.save(self.__opened_filename)
self.SetStatusText(f"File saved as {self.__opened_filename}")
def save_file_as(self, event):
with wx.FileDialog(self, "Save Coefficients file", wildcard="cpd (*.cpd)|*.cpd",
style=wx.FD_SAVE) as fileDialog:
if fileDialog.ShowModal() == wx.ID_CANCEL:
return # the user changed their mind
# Save the file and price data file, changing opened filename so next save writes to new file
self.SetStatusText(f"Saving file as {self.__opened_filename}")
self.__opened_filename = fileDialog.GetPath()
self.__cor.save(self.__opened_filename)
self.SetStatusText(f"File saved as {self.__opened_filename}")
def calculate_coefficients(self, event):
# set time zone to UTC to avoid local offset issues, and get from and to dates (a week ago to today)
timezone = pytz.timezone("Etc/UTC")
utc_to = datetime.now(tz=timezone)
utc_from = utc_to - timedelta(days=self.__config.get('calculate.from.days'))
# Calculate
self.SetStatusText("Calculating coefficients.")
self.__cor.calculate(date_from=utc_from, date_to=utc_to,
timeframe=self.__config.get('calculate.timeframe'),
min_prices=self.__config.get('calculate.min_prices'),
max_set_size_diff_pct=self.__config.get('calculate.max_set_size_diff_pct'),
overlap_pct=self.__config.get('calculate.overlap_pct'),
max_p_value=self.__config.get('calculate.max_p_value'))
self.SetStatusText("")
# Show calculated data
self.refresh_grid()
def quit(self, event):
# Close
self.Close()
def refresh_grid(self):
"""
Refreshes grid. Notifies if rows have been added or deleted.
:return:
"""
self.__log.debug(f"Refreshing grid. Timer running: {self.timer.IsRunning()}")
# Update data
self.table.data = self.__cor.coefficient_data.copy()
# Format
self.table.data.loc[:, 'Base Coefficient'] = self.table.data['Base Coefficient'].map('{:.5f}'.format)
self.table.data.loc[:, 'Last Check'] = pd.to_datetime(self.table.data['Last Check'], utc=True)
self.table.data.loc[:, 'Last Check'] = self.table.data['Last Check'].dt.strftime('%d-%m-%y %H:%M:%S')
self.table.data.loc[:, 'Last Coefficient'] = self.table.data['Last Coefficient'].map('{:.5f}'.format)
# Remove nans. The ones from the float column will be str nan as they have been formatted
self.table.data = self.table.data.fillna('')
self.table.data.loc[:, 'Last Coefficient'] = self.table.data['Last Coefficient'].replace('nan', '')
# Start refresh
self.grid_correlations.BeginBatch()
# Check if num rows in dataframe has changed, and send appropriate APPEND or DELETE messages
cur_rows = len(self.__cor.filtered_coefficient_data.index)
if cur_rows < self.__rows:
# Data has been deleted. Send message
msg = wx.grid.GridTableMessage(self.table, wx.grid.GRIDTABLE_NOTIFY_ROWS_DELETED,
self.__rows - cur_rows, self.__rows - cur_rows)
self.grid_correlations.ProcessTableMessage(msg)
elif cur_rows > self.__rows:
# Data has been added. Send message
msg = wx.grid.GridTableMessage(self.table, wx.grid.GRIDTABLE_NOTIFY_ROWS_APPENDED,
cur_rows - self.__rows) # how many
self.grid_correlations.ProcessTableMessage(msg)
self.grid_correlations.EndBatch()
# Send updated message
msg = wx.grid.GridTableMessage(self.table, wx.grid.GRIDTABLE_REQUEST_VIEW_GET_VALUES)
self.grid_correlations.ProcessTableMessage(msg)
# Update row count
self.__rows = cur_rows
def monitor(self, event):
# Check state of toggle button. If on, then start monitoring, else stop
if self.monitor_toggle.GetValue():
self.__log.info("Starting monitoring.")
self.monitor_toggle.SetBackgroundColour(wx.GREEN)
self.monitor_toggle.SetLabelText("On")
self.SetStatusText("Monitoring for changes to coefficients.")
self.timer.Start(self.__config.get('monitor.interval')*1000)
# Autosave filename
filename = self.__opened_filename if self.__opened_filename is not None else 'autosave.cpd'
self.__cor.start_monitor(interval=self.__config.get('monitor.interval'),
calculate_from=[self.__config.get('monitor.calculate_from.long.minutes'),
self.__config.get('monitor.calculate_from.short.minutes')],
min_prices=self.__config.get('monitor.min_prices'),
max_set_size_diff_pct=self.__config.get('monitor.max_set_size_diff_pct'),
overlap_pct=self.__config.get('monitor.overlap_pct'),
max_p_value=self.__config.get('monitor.max_p_value'),
cache_time=self.__config.get('monitor.tick_cache_time'),
autosave=self.__config.get('monitor.autosave'),
filename=filename)
else:
self.__log.info("Stopping monitoring.")
self.monitor_toggle.SetBackgroundColour(wx.RED)
self.monitor_toggle.SetLabelText("Off")
self.SetStatusText("Monitoring stopped.")
self.timer.Stop()
self.__cor.stop_monitor()
def open_settings(self, event):
"""
Opens the settings dialog
:return:
"""
settings_dialog = SettingsDialog(parent=self, exclude=['window'])
res = settings_dialog.ShowModal()
if res == wx.ID_OK:
# Reload relevant parts of app
restart_monitor_timer = False
restart_gui_timer = False
reload_correlations = False
reload_logger = False
reload_graph = False
for setting in settings_dialog.changed_settings:
# If any 'monitor.' settings except 'monitor.divergence_threshold have changed then restart
# monitoring timer with new settings.
# If 'monitor.interval has changed then restart gui timer.
# If 'monitor.monitoring_threshold' has changed, then refresh correlation data.
# If any 'logging.' settings have changed, then reload logger config.
if setting.startswith('monitor.') and setting != 'monitor.divergence_threshold':
restart_monitor_timer = True
if setting == 'monitor.interval':
restart_gui_timer = True
if setting == 'monitor.monitoring_threshold':
reload_correlations = True
if setting.startswith('logging.'):
reload_logger = True
if setting.startswith('monitor.calculate_from'):
reload_graph = True
# Now perform the actions
if restart_monitor_timer:
self.__log.info("Settings updated. Reloading monitoring timer.")
self.__cor.stop_monitor()
self.__cor.start_monitor(interval=self.__config.get('monitor.interval'),
calculate_from=[self.__config.get('monitor.calculate_from.long.minutes'),
self.__config.get('monitor.calculate_from.short.minutes')],
min_prices=self.__config.get('monitor.min_prices'),
max_set_size_diff_pct=self.__config.get('monitor.max_set_size_diff_pct'),
overlap_pct=self.__config.get('monitor.overlap_pct'),
max_p_value=self.__config.get('monitor.max_p_value'))
if restart_gui_timer:
self.__log.info("Settings updated. Restarting gui timer.")
self.timer.Stop()
self.timer.Start(self.__config.get('monitor.interval') * 1000)
if reload_correlations:
self.__log.info("Settings updated. Updating monitoring threshold and reloading grid.")
self.__cor.monitoring_threshold = self.__config.get("monitor.monitoring_threshold")
self.refresh_grid()
if reload_logger:
self.__log.info("Settings updated. Reloading logger.")
log_config = Config().get('logging')
logging.config.dictConfig(log_config)
if reload_graph:
self.__log.info("Settings updated. Reloading graph.")
if len(self.__selected_correlation) == 2:
self.show_graph(symbol1=self.__selected_correlation[0], symbol2=self.__selected_correlation[1])
def on_close(self, event):
"""
Window closing. Save coefficients and stop monitoring.
:param event:
:return:
"""
# Save pos and size
x, y = self.GetPosition()
width, height = self.GetSize()
self.__config.set('window.x', x)
self.__config.set('window.y', y)
self.__config.set('window.width', width)
self.__config.set('window.height', height)
# Style
style = self.GetWindowStyle()
self.__config.set('window.style', style)
self.__config.save()
# Stop monitoring
self.__cor.stop_monitor()
# Kill graph as it seems to be stopping script from ending
self.__graph = None
# End
event.Skip()
def select_cell(self, event):
"""
A cell was selected. Show the graph for the correlation.
:param event:
:return:
"""
# Get row and symbols.
row = event.GetRow()
symbol1 = self.grid_correlations.GetCellValue(row, self.COLUMN_SYMBOL1)
symbol2 = self.grid_correlations.GetCellValue(row, self.COLUMN_SYMBOL2)
self.__selected_correlation = [symbol1, symbol2]
self.show_graph(symbol1, symbol2)
def show_graph(self, symbol1, symbol2):
"""
Displays the graph for the specified symbols correlation history
:param symbol1:
:param symbol2:
:return:
"""
# Get the price data for the base coefficient calculation, tick data to calculate last coefficient and and the
# coefficient history data
symbol_1_price_data = self.__cor.get_price_data(symbol1)
symbol_2_price_data = self.__cor.get_price_data(symbol2)
symbol_1_ticks = self.__cor.get_ticks(symbol1, cache_only=True)
symbol_2_ticks = self.__cor.get_ticks(symbol2, cache_only=True)
history_data_short = \
self.__cor.get_coefficient_history(symbol1, symbol2,
self.__config.get('monitor.calculate_from.short.minutes'))
history_data_long = \
self.__cor.get_coefficient_history(symbol1, symbol2,
self.__config.get('monitor.calculate_from.long.minutes'))
# Display if we have any data
self.__log.debug(f"Refreshing history graph {symbol1}:{symbol2}.")
self.__graph.draw(prices=[symbol_1_price_data, symbol_2_price_data], ticks=[symbol_1_ticks, symbol_2_ticks],
history=[history_data_short, history_data_long], symbols=[symbol1, symbol2])
# Un-hide and layout if hidden
if not self.__graph.IsShown():
self.__graph.Show()
self.__main_sizer.Layout()
def __timer_event(self, event):
"""
Called on timer event. Refreshes grid and updates selected graph.
:return:
"""
self.refresh_grid()
if len(self.__selected_correlation) == 2:
self.show_graph(symbol1=self.__selected_correlation[0], symbol2=self.__selected_correlation[1])
class DataTable(wx.grid.GridTableBase):
"""
A data table that holds data in a pandas dataframe
"""
def __init__(self, data=None):
wx.grid.GridTableBase.__init__(self)
self.headerRows = 1
if data is None:
data = pd.DataFrame()
self.data = data
# Get divergence threshold from app config
self.divergence_threshold = Config().get('monitor.divergence_threshold')
def GetNumberRows(self):
return len(self.data)
def GetNumberCols(self):
return len(self.data.columns) + 1
def GetValue(self, row, col):
if col == 0:
return self.data.index[row]
return self.data.iloc[row, col - 1]
def SetValue(self, row, col, value):
self.data.iloc[row, col - 1] = value
def GetColLabelValue(self, col):
if col == 0:
if self.data.index.name is None:
return 'Index'
else:
return self.data.index.name
return str(self.data.columns[col - 1])
def GetTypeName(self, row, col):
return wx.grid.GRID_VALUE_STRING
def GetAttr(self, row, col, prop):
attr = wx.grid.GridCellAttr()
# If column is last coefficient, get value and check against threshold. Highlight if diverged.
threshold = Config().get('monitor.divergence_threshold')
if col in [MonitorFrame.COLUMN_LAST_COEFFICIENT]:
value = self.GetValue(row, col)
if value != "":
value = float(value)
if value <= threshold:
attr.SetBackgroundColour(wx.YELLOW)
else:
attr.SetBackgroundColour(wx.WHITE)
return attr
class GraphPanel(wx.Panel):
def __init__(self, parent):
"""
A panel to show the graphs
:param parent: The parent panel
"""
# Super
wx.Panel.__init__(self, parent)
# 3 axis, 2 price data for calculate, 2 price data for last coefficient and coefficient history.
# All will have axis labels and top and right boarders
# removed
self.__fig, self.__axes = plt.subplots(nrows=5, ncols=1)
# Create the canvas
self.__canvas = FigureCanvas(self, -1, self.__fig)
# Date format for x axes
self.__tick_fmt_date = matplotlib.dates.DateFormatter('%d-%b')
self.__tick_fmt_time = matplotlib.dates.DateFormatter('%H:%M:%S')
# Sizer etc.
self.__sizer = wx.BoxSizer(wx.VERTICAL)
self.__sizer.Add(self.__canvas, 1, wx.LEFT | wx.TOP | wx.GROW)
self.SetSizer(self.__sizer)
self.Fit()
def __del__(self):
# Close all plots
plt.close('all')
self.__axes = None
self.__fig = None
def draw(self, prices=None, ticks=None, history=None, symbols=None):
"""
Plot the correlations.
:param prices: Price data used to calculate base coefficient. List [Symbol1 Price Data, Symbol 2 Price Data]
:param ticks: Ticks used to calculate last coefficient. List [Symbol1, Symbol2]
:param history: Coefficient history data. List of data for one or more timeframes.
:param symbols: Symbols. List [Symbol1, Symbol2]
:return:
"""
# Get all plots for history. History can contain multiple plots for different timeframes. They will all be
# plotted on the same chart.
times = []
coefficients = []
for hist in history:
times.append(hist['Date To'])
coefficients.append(hist['Coefficient'])
# Clear. We will need to redraw
for ax in self.__axes:
ax.clear()
if symbols is not None and len(symbols) == 2:
# Axis ranges
default_range = [datetime.now() - timedelta(days=1), datetime.now()]
price_chart_date_range = default_range # We need a default here if no data is available
if prices is not None and len(prices) == 0 and prices[0] is not None and prices[1] is not None:
price_chart_date_range = [min(min(prices[0]['time']), min(prices[1]['time'])),
max(max(prices[0]['time']), max(prices[1]['time']))]
tick_chart_date_range = default_range # We need a default here if no data is available
if ticks is not None and len(ticks) == 0 and ticks[0] is not None and ticks[1] is not None:
tick_chart_date_range = [min(min(ticks[0]['time']), min(ticks[1]['time'])),
max(max(ticks[0]['time']), max(ticks[1]['time']))]
# Chart config
titles = [f"Base Coefficient Price Data for {symbols[0]}", f"Base Coefficient Price Data for {symbols[1]}",
f"Coefficient Tick Data for {symbols[0]}", f"Coefficient Tick Data for {symbols[1]}",
f"Coefficient History for {symbols[0]}:{symbols[1]}"]
xlims = [price_chart_date_range, price_chart_date_range, tick_chart_date_range, tick_chart_date_range, None]
ylims = [None, None, None, None, [-1, 1]]
xlabels = [None, None, None, None, None]
ylabels = ['Price', 'Price', 'Price', 'Price', 'Coefficient']
tick_labels = [[], prices[1]['time'], [], ticks[1]['time'], times[0]]
mtick_fmts = [None, self.__tick_fmt_date, None, self.__tick_fmt_time, self.__tick_fmt_time]
mtick_rot = [0, 45, 0, 45, 45]
xdata = [prices[0]['time'], prices[1]['time'], ticks[0]['time'], ticks[1]['time'], times]
ydata = [prices[0]['close'], prices[1]['close'], ticks[0]['ask'], ticks[1]['ask'], coefficients]
types = ['plot', 'plot', 'plot', 'plot', 'scatter']
# Draw 5 charts
for index in range(0, len(self.__axes)):
# Titles and axis labels
self.__axes[index].set_title(titles[index])
self.__axes[index].set_xlabel(xlabels[index])
self.__axes[index].set_ylabel(ylabels[index])
# Limits
if xlims[index] is not None:
self.__axes[index].set_xlim(xlims[index])
if ylims[index] is not None:
self.__axes[index].set_ylim(ylims[index])
# Tick labels and formats
self.__axes[index].xaxis.set_ticklabels(tick_labels[index])
if mtick_fmts[index] is not None:
self.__axes[index].xaxis.set_major_formatter(mtick_fmts[index])
plt.setp(self.__axes[index].xaxis.get_majorticklabels(), rotation=mtick_rot[index])
# Remove typ and right boarders
self.__axes[index].spines["top"].set_visible(False)
self.__axes[index].spines["right"].set_visible(False)
# Plot. There may be more than one set of data or each chart. Convert single data to list, then loop
xdata_list = xdata[index] if isinstance(xdata[index], list) else [xdata[index], ]
ydata_list = ydata[index] if isinstance(ydata[index], list) else [ydata[index], ]
for data_index in range(0, len(xdata_list)):
if types[index] == 'plot':
self.__axes[index].plot(xdata_list[data_index], ydata_list[data_index])
elif types[index] == 'scatter':
self.__axes[index].scatter(xdata_list[data_index], ydata_list[data_index], s=1)
# Layout with padding between charts
self.__fig.tight_layout(pad=0.5)
# Redraw canvas
self.__canvas.draw()