sum.n: Function to limit number of vars with missing values when...

In nrkoehler/srir: Scoring of the Severe Respiratory Insufficiency Questionnaire (SRI)

Description

Determining the minimum number of variables with valid values in a data frame when calculating row sums.

Usage

## S3 method for class 'n'
sum(df, n)

Arguments

df	data.frame with numeric variables.
n	number of variables with valid values required for calculating row sums.

Examples

library(srir)
# all variables must have valid values for raw sums to be calculated, otherwise NA is returned.
sum.n(df.na[-1], 49)
# only 10 variables must have valid values for the sums to be calculated, otherwise NA is returned.
sum.n(df.na[-1], 10)

nrkoehler/srir documentation built on May 23, 2019, 9:03 p.m.