URLs can have parameters, taking the form of name=value, chained together
with & symbols. param_get, when provided with a vector of URLs and a vector
of parameter names, will generate a data.frame consisting of the values of each parameter
for each URL.
Usage
param_get(urls, parameter_names = NULL)
Arguments
urls
a vector of URLs
parameter_names
a vector of parameter names. If NULL (default), will extract
all parameters that are present.
Value
a data.frame containing one column for each provided parameter name. Values that
cannot be found within a particular URL are represented by an NA.
See Also
url_parse for decomposing URLs into their constituent parts and
param_set for inserting or modifying key/value pairs within a query string.
# NOT RUN {#A very simple exampleurl <- "https://google.com:80/foo.php?this_parameter=selfreferencing&hiphop=awesome"parameter_values <- param_get(url, c("this_parameter","hiphop"))
# }