solr_stats: Solr stats

In solrium: General Purpose R Interface to 'Solr'

Description

Returns only stat items

Usage

solr_stats(
  conn,
  name = NULL,
  params = list(q = "*:*", stats.field = NULL, stats.facet = NULL),
  body = NULL,
  callopts = list(),
  raw = FALSE,
  parsetype = "df",
  progress = NULL,
  ...
)

Arguments

conn	A solrium connection object, see SolrClient
name	Name of a collection or core. Or leave as NULL if not needed.
params	(list) a named list of parameters, results in a GET request as long as no body parameters given
body	(list) a named list of parameters, if given a POST request will be performed
callopts	Call options passed on to crul::HttpClient
raw	(logical) If TRUE, returns raw data in format specified by wt param
parsetype	(character) One of 'list' or 'df'
progress	a function with logic for printing a progress bar for an HTTP request, ultimately passed down to curl. only supports httr::progress for now. See the README for an example.
...	Further args to be combined into query

Value

XML, JSON, a list, or data.frame

Stats parameters

• q Query terms, defaults to ':', or everything.

• stats.field The number of similar documents to return for each result.

• stats.facet You can not facet on multi-valued fields.

• wt (character) Data type returned, defaults to 'json'. One of json or xml. If json, uses fromJSON to parse. If xml, uses xmlParse to parse. csv is only supported in solr_search and solr_all.

• start Record to start at, default to beginning.

• rows Number of records to return. Defaults to 10.

• key API key, if needed.

References

See https://lucene.apache.org/solr/guide/8_2/the-stats-component.html for more information on Solr stats.

See Also

solr_highlight(), solr_facet(), solr_search(), solr_mlt()

Examples

## Not run: 
# connect
(cli <- SolrClient$new(host = "api.plos.org", path = "search", port = NULL))

# get stats
solr_stats(cli, params = list(q='science', stats.field='counter_total_all'),
  raw=TRUE)
solr_stats(cli, params = list(q='title:"ecology" AND body:"cell"',
   stats.field=c('counter_total_all','alm_twitterCount')))
solr_stats(cli, params = list(q='ecology',
  stats.field=c('counter_total_all','alm_twitterCount'),
  stats.facet='journal'))
solr_stats(cli, params = list(q='ecology',
  stats.field=c('counter_total_all','alm_twitterCount'),
  stats.facet=c('journal','volume')))

# Get raw data, then parse later if you feel like it
## json
out <- solr_stats(cli, params = list(q='ecology',
  stats.field=c('counter_total_all','alm_twitterCount'),
  stats.facet=c('journal','volume')), raw=TRUE)
library("jsonlite")
jsonlite::fromJSON(out)
solr_parse(out) # list
solr_parse(out, 'df') # data.frame

## xml
out <- solr_stats(cli, params = list(q='ecology',
  stats.field=c('counter_total_all','alm_twitterCount'),
  stats.facet=c('journal','volume'), wt="xml"), raw=TRUE)
library("xml2")
xml2::read_xml(unclass(out))
solr_parse(out) # list
solr_parse(out, 'df') # data.frame

# Get verbose http call information
solr_stats(cli, params = list(q='ecology', stats.field='alm_twitterCount'),
   callopts=list(verbose=TRUE))

## End(Not run)

solrium documentation built on May 19, 2021, 9:06 a.m.