baseball.py

import os
from collections import OrderedDict

from flask import Flask
from wtforms import fields
from ggplot import (aes, stat_smooth, geom_point, geom_text, ggtitle, ggplot,
                    xlab, ylab)
import numpy as np
import pandas as pd

from gleam import Page, panels


# setup

stats = ['At-Bats (AB)', 'Runs (R)', 'Hits (H)', 'Doubles (2B)',
         'Triples (3B)', 'Home Runs (HR)', 'Runs Batted In (RBI)',
         'Stolen Bases (SB)', 'Caught Stealing (CS)', 'Walks (BB)',
         'Intentional Walk (IBB)', 'Salary', 'Attendance']

statchoices = [(s, s) for s in stats]

dir = os.path.split(__file__)[0]
players = pd.read_csv(os.path.join(dir, "baseball_data", "players.csv"))
teams = pd.read_csv(os.path.join(dir, "baseball_data", "teams.csv"))


class BaseballInput(panels.InputPanel):
    xvar = fields.SelectField(label="X axis", choices=statchoices,
                              default="Hits (H)")
    yvar = fields.SelectField(label="Y axis", choices=statchoices,
                              default="Runs (R)")

    year = fields.IntegerField(label="Year", default=2013)

    linear = fields.BooleanField(label="Linear Fit")
    shownames = fields.BooleanField(label="Show Names")


class DataScatter(panels.PlotPanel):
    height = 500
    width = 700

    def __init__(self, name, dat, ID_col):
        self.name = name
        self.dat = dat
        self.ID_col = ID_col
        panels.PlotPanel.__init__(self)

    def plot(self, inputs):
        """Plot the given X and Y axes on a scatter plot"""
        if inputs.year not in self.dat.Year.values:
            return

        if inputs.xvar not in self.dat or inputs.yvar not in self.dat:
            return

        subdat = self.dat[self.dat.Year == inputs.year]
        p = ggplot(subdat, aes(x=inputs.xvar, y=inputs.yvar))

        p = p + geom_point()
        if inputs.shownames:
            p = p + geom_text(aes(label=self.ID_col), vjust=1, hjust=1)
        if inputs.linear:
            p = p + stat_smooth(color="red", method="lm")
        return p


class BaseballGleam(Page):
    title = "Baseball Statistics"
    input = BaseballInput()
    output = panels.TabPanel([DataScatter("Teams", teams, "teamID"),
                              DataScatter("Players", players, "name")])


app = Flask("BaseballGleam")
BaseballGleam.add_flask(app)
app.debug = True
app.run()