diff --git a/indexer.py b/indexer.py index 510984d..91eb242 100644 --- a/indexer.py +++ b/indexer.py @@ -102,10 +102,7 @@ class Indexer(): print("You have somehow went beyond the magic") return self.save_5 - # I have a test file (mytest.py) with pandas but couldn't figure out how to grab just a single cell. - # so I came up with this, if anyone knows how to get a single cell and can explain it to - # me I would love to know, as I think that method might be quicker, maybe, idk it like - # 4am + # retuns a dict of words/n-grams with their assosiated tf-idf score *can also return just a single score or a pandas dataframe # https://stackoverflow.com/questions/34449127/sklearn-tfidf-transformer-how-to-get-tf-idf-values-of-given-words-in-documen def get_tf_idf(self,words,word): #tf_idf @@ -113,13 +110,16 @@ class Indexer(): #word the word we finding the score for #return the score try: - tfidf = TfidfVectorizer() - tfidf_matrix = tfidf.fit_transform(words) - df = pd.DataFrame(tfidf_matrix.toarray(), columns = tfidf.get_feature_names_out()) - return(df.iloc[0][''.join(word)]) - #print(df) - except KeyError: - return -1 + tfidf = TfidfVectorizer(ngram_range=(1,3)) # ngram_range is range of n-values for different n-grams to be extracted (1,3) gets unigrams, bigrams, trigrams + tfidf_matrix = tfidf.fit_transform(words) # fit trains the model, transform creates matrix + df = pd.DataFrame(tfidf_matrix.toarray(), columns = tfidf.get_feature_names_out()) # store value of matrix to associated word/n-gram + #return(df.iloc[0][''.join(word)]) #used for finding single word in dataset + data = df.to_dict() # transform dataframe to dict *could be expensive the larger the data gets, tested on ~1000 word doc and took 0.002 secs to run + return data # returns the dict of words/n-grams with tf-idf + #print(df) # debugging + except: + print("Error in tf_idf!") + return def get_data(self): diff --git a/mytest.py b/mytest.py index 3ec2c2e..b9c7d41 100644 --- a/mytest.py +++ b/mytest.py @@ -4,6 +4,7 @@ from sklearn.feature_extraction.text import TfidfVectorizer import pandas as pd import numpy as np + #tf_idf #words = whole text #word the word we finding the score for @@ -19,13 +20,12 @@ words = ['this is the first document ' doc1 = ["I can't fucking take it any more. Among Us has singlehandedly ruined my life. The other day my teacher was teaching us Greek Mythology and he mentioned a pegasus and I immediately thought 'Pegasus? more like Mega Sus!!!!' and I've never wanted to kms more. I can't look at a vent without breaking down and fucking crying. I can't eat pasta without thinking 'IMPASTA??? THATS PRETTY SUS!!!!' Skit 4 by Kanye West. The lyrics ruined me. A Mongoose, or the 25th island of greece. The scientific name for pig. I can't fucking take it anymore. Please fucking end my suffering."] doc2 = ["Anyways, um... I bought a whole bunch of shungite rocks, do you know what shungite is? Anybody know what shungite is? No, not Suge Knight, I think he's locked up in prison. I'm talkin' shungite. Anyways, it's a two billion year-old like, rock stone that protects against frequencies and unwanted frequencies that may be traveling in the air. That's my story, I bought a whole bunch of stuff. Put 'em around the la casa. Little pyramids, stuff like that."] word = 'life' - try: - tfidf = TfidfVectorizer() - tfidf_matrix = tfidf.fit_transform(doc1) + tfidf = TfidfVectorizer(ngram_range=(3,3)) # ngram_range is range of n-values for different n-grams to be extracted (1,3) gets unigrams, bigrams, trigrams + tfidf_matrix = tfidf.fit_transform(words) df = pd.DataFrame(tfidf_matrix.toarray(), columns = tfidf.get_feature_names_out()) - print(df.iloc[0][''.join(word)]) - #print(df) + #print(df.iloc[0][''.join(word)]) + data = df.to_dict() except KeyError: # word does not exist print(-1)