freqAnalysis: Topic Modelling for content curation @COGNIZANT ANALYTICS
In krishnaharsha/BullsEyeR: Topic Modelling for content curation @COGNIZANT ANALYTICS
Description
1.freqAnalysis()- returns dataframe with words and their frequencies after initial preprocessing sparsity control and TFIDF analysis is performed.we can pick some words from the high frequency list as custom stop words.2.createDTM()- repeats first step, now including the custom stop words as well, removes empty documents if any and returns a Document term matrix. This DTM is used for finding optimal number of topics for LDA modelling using FindTopicsNumber() from 'ldatuning' package3.BullsEye()- Performs preprocessing with custom stop words,topic number from ldatuning and builds unigram topic model with/without stemming. Returns a)a data frame with keywords/dominant words of each document along with the topic number assigned by LDA model.b)a list of zero length documents after preprocessing c)a data frame with top 20 terms in all the topics discovered by LDA
Usage
1
freqAnalysis(ds, spvar = 0.99, seedno = 12345, stemvar = 0)
Value
See Description
krishnaharsha/BullsEyeR documentation built on May 20, 2019, 8:49 a.m.
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Description
1.freqAnalysis()- returns dataframe with words and their frequencies after initial preprocessing sparsity control and TFIDF analysis is performed.we can pick some words from the high frequency list as custom stop words.2.createDTM()- repeats first step, now including the custom stop words as well, removes empty documents if any and returns a Document term matrix. This DTM is used for finding optimal number of topics for LDA modelling using FindTopicsNumber() from 'ldatuning' package3.BullsEye()- Performs preprocessing with custom stop words,topic number from ldatuning and builds unigram topic model with/without stemming. Returns a)a data frame with keywords/dominant words of each document along with the topic number assigned by LDA model.b)a list of zero length documents after preprocessing c)a data frame with top 20 terms in all the topics discovered by LDA
Usage
1 | freqAnalysis(ds, spvar = 0.99, seedno = 12345, stemvar = 0)
|
Value
See Description
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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