childsds (version 0.5)

sds.df,refs-method: calculates standard deviation scores according to a given reference and adds the respective column

Description

calculates standard deviation scores according to a given reference and adds the respective column

Usage

"sds.df"(object, df, item, value = "value", age = "age", sex = "sex", male = 0, female = 1)

Arguments

object

refs object

df

dataframe

item

reference contained in object

sex

name of the column containing sex

age

name of the column containing age

value

name of the column containing numeric value which should transform into SDscore

male

coding for male

female

coding for female

Examples

data(who.ref)
x <- data.frame(height=c(50,100,60,54),
                sex=c("m","f","f","m"),
                age=c(0,2.9,0.6,0.2))
sds.df(who.ref,df=x,item="height",value="height",sex="sex",age="age",male="m",female="f")