Matplotlib Tutorial 14 - candlestick OHLC graphs

In this Matplotlib tutorial, we're going to cover how to create open, high, low, close (OHLC) candlestick charts within Matplotlib. These graphs are used to display time-series stock price information in a condensed form.

[OriAlon]

for people coming here in 2021+
matplotlib doesn't include the finance module normally:
but you can
pip install --upgrade mplfinance
then
from mplfinance.original_flavor import candlestick_ohlc

also all the ohlc data can be formatted in 1 line using:
ohlc = list(zip(date, openp, highp, lowp, closep, volume))

[tomasenrique]

You're videos are unbelieveble! I think there have been some downs in people who watch them because of the video where you introduce us to internet data... sorry about that. But I can't stop watching these <3

[TXfoxie]

I love coding with you via the videos. Some modules or code you put there may be deprecated but I was able to google StackOverflow to fix the code or install the updated modules. It is a learning curve and I learned a lot from you.

[kartiksaini]

Can you please a make a tutorial regarding drawing data from interactive brokers API and creating live candlestick chart

[まさしん-oe]

Why not use a zip for creating ohlc? If you need a list instead of a generator, just wrap the whole thing in list() when you're making it.

ohlc = zip(date, openp, highp, lowp, closep, volume)

[F]

wouldn't hurt to use "for x, y in enumerate(date)" or at least "for x in range(len(date))" instead of an ugly while loop for the ohlc data. i guess you did that for not to overcomplicate things for beginners, but i think being confronted with pythonic stuff like this will benefit them greatly. for more advanced python programmers, that kind of while loop is just irritating ;)
anyway, thanks for this relatively quick overview of matplotlib. regarding the styling of labels and such, i learned a few things that i didn't know about from just browsing the wiki.

[messibarca]

How could i add other stuff to the same plot? Like horizontal/vertical lines at arbitrary positions? it seems i cannot simply do plt.plot(date) after the candlestick_ohlc fucntion is called. thanks!

[rth-sg]

some might get an import error among other issues if you're using a different version of matplotlib or python. I had to make the following changes...

remove the "_ohlc":

from matplotlib.finance import candlestick

change the order of the ohlc data:

while x < y:
append_me = date[x], openp[x], closep[x], highp[x], lowp[x]

[kaleabwoldemariam]

Thank you Sentdex for your tutorials.I was trying to use a candlestick chart but for some reason the candlesticks are all green. I assume that closep<openp, then the candlesticks should be red. Any reason why?Or my assumption is wrong?

[linazahim]

could you tell me how to draw a line that shows the maximum value and minimum ?

[fast]

How to plot volume to each candle. Volume ask right and volume bid left

[emcemimotionandcontrol]

The series since he started giving finance link is not working. you can't follow things not workable.

[benseshi]

hey how can i connect to my local database to get data from and to plot candlestick graph

[mindOVERmatter]

Why isn't the ohlc graph complete. As in whats the reason for the gaps between candlesticks. Is there a way to fill the gaps.

[shakopython]

How would you get rid of the weekend gaps while still keeping dates as x-ticks? So far the only thing I can come up with is make each week its own subplot, which seems inefficient.

[kenrosenberg]

does anyone know how to do it with quandl dataframe, i mean getting a quandl dataframe and then plotting a candlestick graph from it.

[saadahmed]

I am having this warning message and my graph isnt showing up.

MatplotlibDeprecationWarning: The finance module has been deprecated in mpl 2.0 and will be removed in mpl 2.2. Please use the module mpl_finance instead.
warnings.warn(message, mplDeprecation, stacklevel=1)


Love your tutorial but this yahoo finance api being shutdown or whatever kinda ruins the fun.

[slambodianjones]

It may be worth noting that since it is deprecated, you'll need to install mpl_finance with Anaconda Python terminal, not regular windows CMD. It wouldn't work for me with just the windows edition, had to do it in Anaconda.

[david]

What is the required format for times rather than dates?

[lizzybennet]

Matplotlib.finance has been depreciated for some time. I installed mpl_finance but I can't seem to use the module. Is it possible for you to do a video about installing and using mpl_finance?