matplotlib to plotly plot conversion

Question

I wanted to create an interactive plot with matplotlib in google colab. It seems like a complex task so I want a little help to convert this piece of code which is in matplotlib to Plotly.

close = df['A']
fig = plt.figure(figsize = (15,5))
plt.plot(close, color='r', lw=2.)
plt.plot(close, '^', markersize=10, color='m', label = 'signal X', markevery = df_x)
plt.plot(close, 'v', markersize=10, color='k', label = 'signal Y', markevery = df_y)
plt.title('Turtle Agent: total gains %f, total investment %f%%'%(df_A, df_B))
plt.legend()
plt.show()

can you provide your data as a link or at a minimum sample data in question — Rob Raymond
– Rob Raymond, Commented Oct 28, 2021 at 11:08
df['A'] is a pandas.core.series.Series and sample values are : 89.71 89.94 90.06; df_x and df_y are lists. e,g, df_x = [0,12,0,23,0,34,0,21...] df_y = [12,434,54,2,6,76...] df_A and df_B are numpy.float64 e.g. df_A = -3.2325352343... df_B = -23.35454.... This is it basically. @RobRaymond — Red
– Red, Commented Oct 28, 2021 at 11:29

Rob Raymond · Accepted Answer · 2021-10-28 11:34:03Z

using sample data from plotly OHLC examples https://plotly.com/python/ohlc-charts/
1. create a line trace
2. add scatter traces based on filters of data frame with required formatting. This is done as a list comprehension, could be done as inline code

import pandas as pd
import numpy as np
import plotly.express as px

df = pd.read_csv(
    "https://raw.githubusercontent.com/plotly/datasets/master/finance-charts-apple.csv"
)
df["Date"] = pd.to_datetime(df["Date"])
# make data set more useful for demonstrating this plot
df.loc[df.sample((len(df)//8)*7).index, "direction"] = np.nan

px.line(df, x="Date", y="AAPL.Close").update_traces(line_color="red").add_traces(
    [
        px.scatter(
            df.loc[df["direction"].eq(filter)], x="Date", y="AAPL.Close"
        )
        .update_traces(marker=fmt)
        .data[0]
        for filter, fmt in zip(
            ["Increasing", "Decreasing"],
            [
                {"color": "black", "symbol": "triangle-up", "size": 10},
                {"color": "blue", "symbol": "triangle-down", "size": 10},
            ],
        )
    ]
)

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