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Tutorial1_GettingStarted.py
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Tutorial1_GettingStarted.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sun Apr 5 13:19:08 2020
Homework answers for lesson 4 of "Friends of Tracking" #FoT
Data can be found at: https://github.com/metrica-sports/sample-data
@author: Laurie Shaw (@EightyFivePoint)
"""
import Metrica_IO as mio
import Metrica_Viz as mviz
# set up initial path to data
DATADIR = '/PATH/TO/WHERE/YOU/SAVED/THE/SAMPLE/DATA'
game_id = 2 # let's look at sample match 2
# read in the event data
events = mio.read_event_data(DATADIR,game_id)
# count the number of each event type in the data
print( events['Type'].value_counts() )
# Bit of housekeeping: unit conversion from metric data units to meters
events = mio.to_metric_coordinates(events)
# Get events by team
home_events = events[events['Team']=='Home']
away_events = events[events['Team']=='Away']
# Frequency of each event type by team
home_events['Type'].value_counts()
away_events['Type'].value_counts()
# Get all shots
shots = events[events['Type']=='SHOT']
home_shots = home_events[home_events.Type=='SHOT']
away_shots = away_events[away_events.Type=='SHOT']
# Look at frequency of each shot Subtype
home_shots['Subtype'].value_counts()
away_shots['Subtype'].value_counts()
# Look at the number of shots taken by each home player
print( home_shots['From'].value_counts() )
# Get the shots that led to a goal
home_goals = home_shots[home_shots['Subtype'].str.contains('-GOAL')].copy()
away_goals = away_shots[away_shots['Subtype'].str.contains('-GOAL')].copy()
# Add a column event 'Minute' to the data frame
home_goals['Minute'] = home_goals['Start Time [s]']/60.
# Plot the first goal
fig,ax = mviz.plot_pitch()
ax.plot( events.loc[198]['Start X'], events.loc[198]['Start Y'], 'ro' )
ax.annotate("", xy=events.loc[198][['End X','End Y']], xytext=events.loc[198][['Start X','Start Y']], alpha=0.6, arrowprops=dict(arrowstyle="->",color='r'))
# plot passing move in run up to goal
mviz.plot_events( events.loc[190:198], indicators = ['Marker','Arrow'], annotate=True )
#### TRACKING DATA ####
# READING IN TRACKING DATA
tracking_home = mio.tracking_data(DATADIR,game_id,'Home')
tracking_away = mio.tracking_data(DATADIR,game_id,'Away')
# Look at the column namems
print( tracking_home.columns )
# Convert positions from metrica units to meters
tracking_home = mio.to_metric_coordinates(tracking_home)
tracking_away = mio.to_metric_coordinates(tracking_away)
# Plot some player trajectories (players 11,1,2,3,4)
fig,ax = mviz.plot_pitch()
ax.plot( tracking_home['Home_11_x'].iloc[:1500], tracking_home['Home_11_y'].iloc[:1500], 'r.', MarkerSize=1)
ax.plot( tracking_home['Home_1_x'].iloc[:1500], tracking_home['Home_1_y'].iloc[:1500], 'b.', MarkerSize=1)
ax.plot( tracking_home['Home_2_x'].iloc[:1500], tracking_home['Home_2_y'].iloc[:1500], 'g.', MarkerSize=1)
ax.plot( tracking_home['Home_3_x'].iloc[:1500], tracking_home['Home_3_y'].iloc[:1500], 'k.', MarkerSize=1)
ax.plot( tracking_home['Home_4_x'].iloc[:1500], tracking_home['Home_4_y'].iloc[:1500], 'c.', MarkerSize=1)
# plot player positions at ,atckick-off
KO_Frame = events.loc[0]['Start Frame']
fig,ax = mviz.plot_frame( tracking_home.loc[KO_Frame], tracking_away.loc[KO_Frame] )
# PLOT POISTIONS AT GOAL
fig,ax = mviz.plot_events( events.loc[198:198], indicators = ['Marker','Arrow'], annotate=True )
goal_frame = events.loc[198]['Start Frame']
fig,ax = mviz.plot_frame( tracking_home.loc[goal_frame], tracking_away.loc[goal_frame], figax = (fig,ax) )
# END