def svgTextFromCnnUrl(cnnurl, N=8, nGram=2, width=740, height=500):
t = time()
p = posts.getPostsFromUrl(cnnurl)
print str(time()-t) + " seconds to fetch " + str(len(p)) + " unfiltered posts from disqus"
t = time()
# currently just displays the most common bigrams
common_ngrams = stats.mostCommonNGramsFromPosts(p,N)
common_ngrams = stats.nGramsListToTokenStringsList(common_ngrams[nGram-1])
print str(time()-t) + " seconds to parse all the comments"
s = svggen.commonTokensListToSVGImage(common_ngrams, width, height)
return s
def commonNGrams(cnnurl, p, N=30, bn=12):
article_ngrams = stats.mostCommonNGramsFromString(art.articleTextFromURL(cnnurl),10)
if p == None:
p = posts.getPostsFromUrl(cnnurl)
common_ngrams = stats.mostCommonNGramsFromPosts(p,N)
bigrams = filter(lambda x: x[0] not in article_ngrams[1], common_ngrams[1])
unigrams = filter(lambda x: x[0] not in article_ngrams[0], common_ngrams[0])
bigrams = bigrams[0:bn]
# fake reweighting by multiplying the bigram counts by a constant
bigrams = map(lambda x: tuple([x[0], x[1]*3]), bigrams)
unigrams = unigrams[0:(N-bn)]
common_ngrams = unigrams
common_ngrams.extend(bigrams)
common_ngrams = stats.nGramsListToTokenStringsList(common_ngrams)
return common_ngrams
def getPosts(url):
return posts.getPostsFromUrl(url)
