def publication_years():
    plt.figure(num=None, figsize=(8, 4), dpi=80, facecolor='w', edgecolor='k')
    publicationYears = list(simpleDoc.publicationDatetime().year for simpleDoc in SimpleDoc.getallBetween(None, None))
    histDisc(plt, publicationYears, width = 0.5)
    # plt.savefig(figurePath("publication_years.png"))
    plt.tight_layout()
    plt.show()
def twitterHist():
    plt.figure(num=None, figsize=(8, 4), dpi=80, facecolor='w', edgecolor='k')

    tweetTime = [(tweet.datetime().year, tweet.datetime().month) for doc in SimpleDoc.getall() for tweet in doc.tweets]
    histDisc(plt, tweetTime, width=0.5)
    #plt.title("Verteilung der Tweets nach Jahr und Monat")
    plt.tight_layout()
    plt.show()