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Count the number of observations where a condition is TRUE.

Source: R/attributes.R
count_obs.Rd

Count the number of observations in a non-household level microdata--such as a parcel, plot, of food item data frame--where a user-provided condition is TRUE.

Usage

count_obs(df, where, attrib_name, attrib_vars)

Arguments

df

Data frame. Household-level microdata that contains the attribute to extract.

where

Logical expression whose variables exist in df.

attrib_name

Character. Name to give the attribute in the issues data file

attrib_vars

Character. Regular expression that identifies the variable in var.

Value

Data frame of attributes with the following columns:

  • interview__id

  • interview__key

  • attrib_name

  • attrib_val

  • attrib_vars