mirror of
https://github.com/OpenBB-finance/OpenBB.git
synced 2026-10-28 21:12:16 +00:00
07c053fcff
* update * init * req * fix * req * meh * updates * syspath * update * local plotly, and scope logic * refactor * oops typo * plot dpi fixes * fix tests * fix * poetry update, reqs * some adjustments * added plot settings for scat/options Co-authored-by: Colin Delahunty <72827203+colin99d@users.noreply.github.com> Co-authored-by: didierlopes.eth <dro.lopes@campus.fct.unl.pt>
94 lines
2.7 KiB
Python
Executable File
94 lines
2.7 KiB
Python
Executable File
import io
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import logging
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from datetime import datetime, timedelta
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import numpy as np
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from matplotlib import pyplot as plt
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from bots import config_discordbot as cfg
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from bots.helpers import image_border, load
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from bots.imps import BOT_PLOT_DPI, bot_plot_scale
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from openbb_terminal.common.technical_analysis import momentum_model
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from openbb_terminal.decorators import log_start_end
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logger = logging.getLogger(__name__)
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@log_start_end(log=logger)
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def cg_command(ticker="", length="14", start="", end=""):
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"""Displays chart with centre of gravity [Yahoo Finance]"""
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# Debug
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if cfg.DEBUG:
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logger.debug(
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"ta-cg %s %s %s %s",
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ticker,
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length,
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start,
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end,
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)
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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 = 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_close = df_stock["Adj Close"]
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df_close.columns = ["values"]
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df_ta = momentum_model.cg(df_close, length)
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df_ta = df_ta.fillna(0.0)
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# Output Data
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fig, axes = plt.subplots(2, 1, figsize=bot_plot_scale(), dpi=BOT_PLOT_DPI)
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ax = axes[0]
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ax.set_title(f"{ticker} Centre of Gravity")
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ax.plot(df_stock.index, df_stock["Adj Close"].values, lw=1)
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ax.set_xlim(df_stock.index[0], df_stock.index[-1])
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ax.set_ylabel("Share 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(df_ta.index, df_ta.values, lw=2, label="CG")
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# shift cg 1 bar forward for signal
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signal = df_ta.values
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signal = np.roll(signal, 1)
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ax2.plot(df_ta.index, signal, lw=1, label="Signal")
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ax2.set_xlim(df_stock.index[0], df_stock.index[-1])
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ax2.grid(b=True, which="major", color="#666666", linestyle="-")
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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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imagefile = "ta_cg.png"
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dataBytesIO = io.BytesIO()
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plt.savefig(dataBytesIO)
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plt.close("all")
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dataBytesIO.seek(0)
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imagefile = image_border(imagefile, base64=dataBytesIO)
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return {
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"title": f"Stocks: Center-of-Gravity {ticker}",
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"imagefile": imagefile,
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}
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