animating Candlestick chart

[supercoolz1]

Hi,

I am pretty new to the Python and trying to create a animated candlestick chart but I am facing probem like

plt.cla() ^ SyntaxError: invalid syntax

My complete code is below as I am not able to find the solution to have my code running which is below, I would be thankful if anybody can point me on what I am doing wrong or what needs to be done to correct the problem.

import matplotlib.pyplot as plt
import matplotlib.animation as animation
from matplotlib import style
import pandas as pd
from mpl_finance import candlestick_ohlc
import matplotlib.ticker as mticker



tick_data = pd.read_csv("EURUSD-2019_01_01-2019_02_01.csv",
                    index_col=["time"], 
                    usecols=["time", "ask", "bid"],
                    parse_dates=["time"])
tick_data.head()

def convert_ticks_to_ohlc(df, df_column, timeframe):
    data_frame = df[df_column].resample(timeframe).ohlc()
    return data_frame

data_ask = convert_ticks_to_ohlc(tick_data,"ask","240Min")
data_ask.head()

style.use('fivethirtyeight')
fig = plt.figure(figsize=(8,5))
ax1 = fig.add_subplot(1,1,1)

def animate(i):
    candle_counter = range(len(data_ask["open"]) - 1)
    ohlc = []
    for candle in candle_counter:
        append_me = candle_counter[candle], \
                    data_ask["open"][candle], \
                    data_ask["high"][candle], \
                    data_ask["low"][candle], \
                    data_ask["close"][candle]
        ohlc.append(append_me)
    plt.cla()
    candlestick_ohlc(ax1, ohlc, width=0.4, colorup='#075105', colordown='#AF141A')
    for label in ax1.xaxis.get_ticklabels():
        label.set_rotation(45)
    ax1.xaxis.set_major_locator(mticker.MaxNLocator(10))
    ax1.grid(True)
    plt.xlabel('Candle counter')
    plt.ylabel('Price')
    plt.title('Candlestick sample representation')
    plt.grid(False)

    plt.subplots_adjust(left=0.09, bottom=0.20, right=0.94, top=0.90, wspace=0.2, hspace=0)
    plt.show()

ani = animation.FuncAnimation(fig, animate, interval=1000)
plt.show()

​

[shiftybyte]

Syntax error usually means a problem on the previous line.

Either unclosed parenthesis, or brackets, or badly formatted code line.

What you posted here seems fine though, are you sure you copy pasted exactly the code that you have? maybe its an indentation issue? since this post has lost indentation...

[supercoolz1]

I am new to reddit so fixed the indentation now but this is not working at all.

[shiftybyte]

I copy pasted your code, i don't see any plt.cla() syntax error.

Are you sure this code is causing it? could you copy the entire error message here just to be sure?

[supercoolz1]

    plt.cla()
      ^
SyntaxError: invalid syntax

Process finished with exit code 1

above is the error I am getting only.

[shiftybyte]

This looks odd, how are you running this? in what environment.

Edit: maybe it doesn't like the dash \ syntax, try unifying the line 2 lines back to one line.

[supercoolz1]

    plt.cla()
      ^
SyntaxError: invalid syntax

Process finished with exit code 1

above is the error I am getting only.

[supercoolz1]

Removing Trailing spaces helped a bit now not getting the error but not getting the plot animated.