All functions

add_col_topic()

Add topic column to data frame

animal_keywords

Keywords - animals.

assign_topic()

Assign topics based on precalculated scores

assign_topic_lda()

Assign topics based on LDA model

biomarker_keywords

Keywords - biomarkers.

calculate_score_animals()

Calculate animal model scores for abstracts

calculate_score_biomarker()

Calculate biomarker scores for abstracts

calculate_score_patients()

Calculate patients scores for abstracts

calculate_score_topic()

Calculate scores of a self-chosen topic

combine_df()

Combine data frames into one data frame

combine_mir()

Combine miRNA vectors into one

combine_stopwords()

Combine data frames containing stop words

compare_mir_count()

Compare count of miRNA names between different topics

compare_mir_count_log2()

Compare log2-frequency count of miRNA names between two topics

compare_mir_count_unique()

Compare top count of unique miRNA names per topic

compare_mir_terms()

Compare count of terms associated with a miRNA name over various topics

compare_mir_terms_log2()

Compare log2-frequency count of terms associated with a miRNA name

compare_mir_terms_scatter()

Compare shared terms associated with a miRNA name

compare_mir_terms_unique()

Compare terms uniquely associated with a miRNA name

count_mir()

Count miRNA names in a data frame

count_mir_threshold()

Count occurrence of miRNA names above threshold

count_snp()

Count SNPs in a data frame

count_target()

Count targets in data frame

df_crc

Dataset of PubMed data of miRNAs in Colorectal Cancer

df_mirtarbase

miRTarBase version 8.0

df_panc

Dataset of PubMed data of miRNAs in Pancreatic Cancer

df_test

Test dataset of PubMed abstracts

extract_mir_df()

Extract miRNA names from abstracts in data frame

extract_mir_string()

Extract miRNA names from string

extract_snp()

Extract SNPs from abstracts in data frame

fit_lda()

Fit LDA-model

generate_stopwords()

Generate data frame containing stop words

get_distinct_mir_df()

Identify top miRNA names distinct for one topic compared to another topic

get_distinct_mir_vec()

Identify miRNA names distinct for one vector compared to another vector

get_mir()

Get miRNA names from a data frame

get_pmid()

Get PubMed-IDs of a data frame

get_shared_mir_df()

Get top miRNA names in common between two topics of a data frame

get_shared_mir_vec()

Get miRNA names in common between two vectors

get_snp()

Get SNPs from a data frame

indicate_mir()

Indicate if a miRNA name is contained in an abstract

indicate_term()

Indicate if a term is contained in abstracts

join_mirtarbase()

Add miRNA targets from miRTarBase version 8.0

join_targets()

Add miRNA targets from an xlsx-file to a data frame

ngram_stopwords

Stop words for n-grams

patients_keywords

Keywords - patients.

plot_lda_term()

Plot terms associated with LDA-fitted topics

plot_mir_count()

Plot count of most frequently mentioned miRNA names

plot_mir_count_threshold()

Plot occurrence count of miRNA names over different thresholds

plot_mir_development()

Plot development of miRNA name mentioning over time

plot_mir_new()

Plot number of newly mentioned miRNA names/year

plot_mir_terms()

Plot count of top terms associated with a miRNA name

plot_perplexity()

Plot perplexity score of various LDA models

plot_score_animals()

Plot frequency of animal model scores in abstracts

plot_score_biomarker()

Plot frequency of biomarker scores in abstracts

plot_score_patients()

Plot frequency of patient scores in abstracts

plot_score_topic()

Plot frequency of self-chosen topic scores in abstracts

plot_target_count()

Plot count of miRNA targets

plot_target_mir_scatter()

Plot targets and corresponding miRNAs as a scatter plot

plot_wordcloud()

Create wordcloud of terms associated with a miRNA name

read_pubmed()

Convert PubMed-file from PubMed into a data frame

read_pubmed_jats()

Convert JATS-file from PubMed into a data frame

save_excel()

Save data frame(s) as xlsx-file

save_plot()

Save the last generated figure

stopwords_2gram

Stop words for text mining with common PubMed 2-grams

stopwords_miretrieve

Stop words for text mining with miRetrieve

stopwords_pubmed

Stop words for text mining from PubMed abstracts

subset_df()

Subset data frame for a term

subset_mir()

Subset data frame for specific miRNA names

subset_mir_threshold()

Subset data frame for miRNA names exceeding a threshold

subset_research()

Subset data frame for abstracts of research articles

subset_review()

Subset data frame for abstracts of review articles

subset_snp()

Subset data frame for specific SNPs

subset_year()

Subset data frame for abstracts published in a specific period