mirror of
https://github.com/OpenBB-finance/OpenBB.git
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124 lines
4.1 KiB
Python
124 lines
4.1 KiB
Python
import os
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from datetime import datetime, timedelta
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import discord
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from matplotlib import pyplot as plt
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from gamestonk_terminal.helper_funcs import plot_autoscale
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from gamestonk_terminal.common.technical_analysis import momentum_model
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from gamestonk_terminal.config_plot import PLOT_DPI
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import discordbot.config_discordbot as cfg
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from discordbot.run_discordbot import gst_imgur
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import discordbot.helpers
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async def fisher_command(ctx, ticker="", length="14", start="", end=""):
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"""Displays chart with fisher transformation [Yahoo Finance]"""
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try:
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# Debug
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if cfg.DEBUG:
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print(f"!stocks.ta.fisher {ticker} {length} {start} {end}")
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# Check for argument
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if ticker == "":
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raise Exception("Stock ticker is required")
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if start == "":
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start = datetime.now() - timedelta(days=365)
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else:
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start = datetime.strptime(start, cfg.DATE_FORMAT)
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if end == "":
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end = datetime.now()
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else:
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end = datetime.strptime(end, cfg.DATE_FORMAT)
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if not length.lstrip("-").isnumeric():
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raise Exception("Number has to be an integer")
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length = float(length)
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ticker = ticker.upper()
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df_stock = discordbot.helpers.load(ticker, start)
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if df_stock.empty:
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raise Exception("Stock ticker is invalid")
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# Retrieve Data
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df_stock = df_stock.loc[(df_stock.index >= start) & (df_stock.index < end)]
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df_ta = momentum_model.fisher("1440min", df_stock, length)
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# Output Data
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fig, axes = plt.subplots(2, 1, figsize=plot_autoscale(), dpi=PLOT_DPI)
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ax = axes[0]
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ax.set_title(f"{ticker} Fisher Transform")
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ax.plot(df_stock.index, df_stock["Adj Close"].values, "k", lw=1)
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ax.set_xlim(df_stock.index[0], df_stock.index[-1])
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ax.set_ylabel("Price")
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ax.grid(b=True, which="major", color="#666666", linestyle="-")
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ax2 = axes[1]
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ax2.plot(
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df_ta.index,
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df_ta.iloc[:, 0].values,
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"b",
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lw=2,
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label="Fisher",
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)
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ax2.plot(
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df_ta.index,
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df_ta.iloc[:, 1].values,
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"fuchsia",
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lw=2,
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label="Signal",
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)
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ax2.set_xlim(df_stock.index[0], df_stock.index[-1])
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ax2.axhspan(2, plt.gca().get_ylim()[1], facecolor="r", alpha=0.2)
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ax2.axhspan(plt.gca().get_ylim()[0], -2, facecolor="g", alpha=0.2)
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ax2.axhline(2, linewidth=3, color="r", ls="--")
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ax2.axhline(-2, linewidth=3, color="g", ls="--")
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ax2.grid(b=True, which="major", color="#666666", linestyle="-")
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ax2.set_xlim(df_stock.index[0], df_stock.index[-1])
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ax2.axhspan(2, plt.gca().get_ylim()[1], facecolor="r", alpha=0.2)
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ax2.axhspan(plt.gca().get_ylim()[0], -2, facecolor="g", alpha=0.2)
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ax2.axhline(2, linewidth=3, color="r", ls="--")
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ax2.axhline(-2, linewidth=3, color="g", ls="--")
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ax2.grid(b=True, which="major", color="#666666", linestyle="-")
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ax2.set_yticks([-2, 0, 2])
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ax2.set_yticklabels(["-2 STDEV", "0", "+2 STDEV"])
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plt.gcf().autofmt_xdate()
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fig.tight_layout(pad=1)
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plt.legend()
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plt.savefig("ta_fisher.png")
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uploaded_image = gst_imgur.upload_image("ta_fisher.png", title="something")
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image_link = uploaded_image.link
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if cfg.DEBUG:
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print(f"Image URL: {image_link}")
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title = "Stocks: Fisher-Transform " + ticker
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embed = discord.Embed(title=title, colour=cfg.COLOR)
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embed.set_author(
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name=cfg.AUTHOR_NAME,
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icon_url=cfg.AUTHOR_ICON_URL,
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)
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embed.set_image(url=image_link)
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os.remove("ta_fisher.png")
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await ctx.send(embed=embed)
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except Exception as e:
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embed = discord.Embed(
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title="ERROR Stocks: Fisher-Transform",
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colour=cfg.COLOR,
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description=e,
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)
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embed.set_author(
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name=cfg.AUTHOR_NAME,
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icon_url=cfg.AUTHOR_ICON_URL,
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)
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await ctx.send(embed=embed)
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