rdryad (version 0.1.1)

search_dryad: Search metadata for search terms using regex (more powerful than searching online without regex).

Description

Search metadata for search terms using regex (more powerful than searching online without regex).

Usage

search_dryad(input, terms, fuzzy = "FALSE",
    ignorecase = "TRUE", value = "FALSE",
    maxdistance = 0.1, loc = "all")

Arguments

input

Dryad metadata list, from e.g., getalldryad_metadata function, or load xml from directory (in which case, provide directory)

terms

search terms e.g., 'plants', 'Whickam'

fuzzy

(logical) do fuzzy search, TRUE (uses agrep) or FALSE (uses grep)

ignorecase

(logical) if FALSE, pattern matching is case sensitive, and if TRUE, case is ignored during matching

value

(logical) if FALSE, a vector containing integer (row) indices of the matches returned, and if TRUE, a vector containing the matching elements themselves is returned

maxdistance

maximum distance allowed for a match. As integer, OR fraction of the pattern length, OR a list with possible entries: all (max. overall distance), insertions (max. number/fraction of insertions), deletions (max. number/fraction of deletions), and

loc

where you want to search, any of title, creator, description, date, type, identifier, relation, OR 'all' for search over all metadata fields

Value

• A numeric vector of OAI identifier's for datasets that match search.

Details

Input is a Dryad metadata data frame from function getalldryad_metadata, or from directory (if latter, give path with arg 'input').

Examples

# Search data.frame in R
mymetdata <- getalldryad_metadata(T, progress = 'text', T, '/Mac/R_stuff/Blog_etc/Dryad/')
search_dryad(mymetdata, 'map', fuzzy=F, loc='type', maxdistance='all')
search_dryad(mymetdata, 'asddddf', fuzzy=T, loc='all')
search_dryad(mymetdata, 'clustal', fuzzy=F, ignorecase=T, value=F, loc='all')

# Or search from a saved data.frame on file
search_dryad('/Mac/R_stuff/Blog_etc/Dryad/dryadmetadata.csv', 'me', fuzzy=T)