webtrackR (version 0.1.0)

extract_host: Extract the host from URL

Description

extract_host() adds the host of a URL as a new column. The host is defined as the part following the scheme (e.g., "https://") and preceding the subdirectory (anything following the next "/"). Note that for URL entries like chrome-extension://soomething or http://192.168.0.1/something, result will be set to NA.

Usage

extract_host(wt, varname = "url", drop_na = TRUE)

Value

webtrack data.table with the same columns as wt and a new column called 'host' (or, if varname not equal to 'url', '<varname>_host')

Arguments

wt

webtrack data object.

varname

character. Name of the column from which to extract the host. Defaults to "url".

drop_na

boolean. Determines whether rows for which no host can be extracted should be dropped from the data. Defaults to TRUE.

Examples

if (FALSE) {
data("testdt_tracking")
wt <- as.wt_dt(testdt_tracking)
# Extract host and drop rows without host
wt <- extract_host(wt)
# Extract host and keep rows without host
wt <- extract_host(wt, drop_na = FALSE)
}