CODEWITHSUNDEEP
pythonmatplotlib
msylvia1012
msylvia1012

Reputation: 9

plt.show() not executing properly

Currently, I am attempting to follow along with a Sentdex YouTube tutorial video (https://www.youtube.com/watchv=cExOVprMlQg&list=PLQVvvaa0QuDe6ZBtkCNWNUbdaBo2vA4RO), however I am running into some difficulties with plt.show(). I have written this script nearly verbatim as detailed in this video and I have turned to StackOverflow to update any syntax, yet I have not been able to actually view this graph. Nothing comes up when I run the script, the shell just spits out '>>'. I have changed backends, unistalled, upgraded and reinstalled matplotlib. I've also tried this script on the exact version of Python seen in this video as well as 3.6.1 and a few others on OS X and Windows 10 via Parallels - still running into the same issue.

Here is my code thus far:

import matplotlib
import matplotlib.pyplot as plt
import matplotlib.ticker as mticker
import matplotlib.dates as mdates
import numpy as np
import pylab


def graphRawFX():
    date, bid, ask = np.loadtext('GBPUSD1d.txt', unpack=True,
                                 delimiter='-',
                                 converters={0: mdates.strpdate2numb('%Y%m%d%H%M%S')})

    fig = plt.figure(figsize=(10,7))

    ax1 = plt.subplot2grid((40,40), (0), rowspan=40, colspan=40)
    ax1.plot(date, bid)
    ax1.plot(date, ask)

    ax1.xaxis.set_major_formatter(mdate.DateFormatter('%Y-%m-%d %H:#M:#S'))
    for label in ax1.axis,get_xticklabels():
        label.set_rotation(45) 

    ply.gca().get_yaxis().get_major_formatter().set_useOffset(False)


    plt.grid(True)
    plt.show()
    pylab.show()

Any thoughts on a solution?

Upvotes: 0

Views: 129

Answers (2)

Paulo Vendinha
Paulo Vendinha

Reputation: 1

I have it working (mac OS). Just try to copy paste to see if there's some typing problem. (it was working without "import pylab" and the "pylab.show()" I have just put it to have the same code you have.

import matplotlib
import matplotlib.pyplot as plt
import matplotlib.ticker as mticher
import matplotlib.dates as mdates
import numpy as np
import pylab

def graphRawFX():
        date,bid,ask = np.loadtxt('GBPUSD1d.txt', unpack=True, delimiter=',',converters={0:mdates.strpdate2num('%Y%m%d%H%M%S')})

        fig = plt.figure(figsize=(10,7))
        ax1 = plt.subplot2grid((40,40), (0,0), rowspan=40, colspan=40)

        ax1.plot(date,bid)
        ax1.plot(date,ask)
        plt.gca().get_yaxis().get_major_formatter().set_useOffset(False)

        ax1.xaxis.set_major_formatter(mdates.DateFormatter('%Y-%m-%d %H:%M:%S'))
        for label in ax1.xaxis.get_ticklabels() :
                label.set_rotation(45)

        ax1_2=ax1.twinx()
        ax1_2.fill_between(date,0, (ask-bid),facecolor='g',alpha=.3)

        plt.subplots_adjust(bottom=.23)

        plt.grid(True)
        plt.show()
        pylab.show()

graphRawFX()

Upvotes: 0

sascha
sascha

Reputation: 33542

You defined a function, which plots. But you never call the function! Your script is empty from python's perspective.

Add graphRawFX() at the end, without any indentation to actually call the function.

If this code is by any means incomplete and not your issue, check your install and clean up the code. The whole import pylab thing looks unwanted. Also ply does not exist and so on. Start with the basics, the official examples and the docs, not with some yt-video which uses tons of (advanced) stuff.

Upvotes: 2

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