[FIXED] Matplotib Finance (mplfinance) formatting axes of chart unsing mpf.plot()

Issue

The MPL finance is great, however I cant seem to tweak the formatting of the axes. In the image I would like to show only the date, without the 00:00 time. Also the price, I would like to add a $ currency and decimal places (variable).

import pandas as pd
import mplfinance as mpf

df = pd.read_csv(csv)
df.date = pd.to_datetime(df.date)
cols = ['date', 'open', 'high', 'low', 'close', 'volume']
df = df[cols]
df = df.sort_values(by=['date'], ascending=False)
df = df.set_index('date')

And then calling mplfinance with (inserting style):

mpf.plot(df, type='candle', volume=True style= *style*)

Generates the below charts, I have highlight the parts I would like to change if possible.

Solution

For the date format, you can add kwarg datetime_format, for example:

mpf.plot(df, type='candle', volume=True, style=s, datetime_format='%b %d')

For the y-axis tick labels, I would suggest that you simply adjust the y-axis label (not the tick labels) using kwarg ylabel='Price ($)' or something like that.

---

Alternatively if you really want a $ sign next to each tick label, you can do this:

• first gain access to the mplfinance axes objects.
• Then set the formatter for that axes, as follows:

from matplotlib.ticker import FormatStrFormatter

fig, axlist = mpf.plot(df,type='candle',volume=True,style=s,
                       datetime_format='%b %d',returnfig=True)

axlist[0].yaxis.set_major_formatter(FormatStrFormatter('$%.2f'))

mpf.show()

Result with Default Style

Answered By - Daniel Goldfarb