has_substring: Detect substring in column 'column'

In cbsodataR: Statistics Netherlands (CBS) Open Data API Client

Description

Detects a substring in a column. has_substring filters the dataset at CBS: rows that have a code that does not contain (one of) x are filtered out.

Usage

has_substring(x, column = NULL, allowed = NULL)

Arguments

x	substring to be detected in column
column	column name
allowed	character with allowed values. If supplied it will check if x is a code in allowed.

See Also

Other query: cbs_get_data(), eq()

Examples

## Not run: 
cbs_get_data( id      = "7196ENG"      # table id
            , Periods = "2000MM03"     # March 2000
            , CPI     = "000000"       # Category code for total 
            )

# useful substrings:
## Periods: "JJ": years, "KW": quarters, "MM", months
## Regions: "NL", "PV": provinces, "GM": municipalities
  
cbs_get_data( id      = "7196ENG"      # table id
            , Periods = has_substring("JJ")     # all years
            , CPI     = "000000"       # Category code for total 
            )

cbs_get_data( id      = "7196ENG"      # table id
            , Periods = c("2000MM03","2001MM12")     # March 2000 and Dec 2001
            , CPI     = "000000"       # Category code for total 
            )

# combine either this
cbs_get_data( id      = "7196ENG"      # table id
            , Periods = has_substring("JJ") | "2000MM01" # all years and Jan 2001
            , CPI     = "000000"       # Category code for total 
            )

# or this: note the "eq" function
cbs_get_data( id      = "7196ENG"      # table id
            , Periods = eq("2000MM01") | has_substring("JJ") # Jan 2000 and all years
            , CPI     = "000000"       # Category code for total 
            )

## End(Not run)

cbsodataR documentation built on Jan. 13, 2021, 7:30 p.m.