ag.createfactor.ds: Generates a factor variable

In datashield/ag.dev.sv: ag.dev.sv

Description

The functions uses the input vector to generate a factor vector. The generate factor is checked and if valid (no category with count > 0 and < 5) returned; if not valid an empty of the same length is returned.

Usage

  ag.createfactor.ds(xvect, levels = NULL, labels = levels,
    exclude = NA, ordered = is.ordered(xvect))

Arguments

xvect	a numerical or character vector
levels	optional vector of values that 'xvect' might have taken
labels	labels for the different levels
exclude	values to be excluded
ordered	tells if the variable 'x' is ordered

Value

a 'valid' factor vector or an empty vector of the same length.

Author(s)

Gaye, A.; Burton, P.

Examples

## Not run: 
# load the login data
data(logindata)

# login and assign specific variable(s)
myvar <- list("GENDER")
opals <- ag.ds.login(logins=logindata,assign=TRUE,variables=myvar)

# generate a factor vector using the variable 'GENDER'
datashield.assign(opals, "sex", quote(ag.createfactor.ds(D$GENDER)))

# display the number of observation in each vector
datashield.aggregate(opals, quote(length(sex)))
 
## End(Not run)

datashield/ag.dev.sv documentation built on May 14, 2019, 7:46 p.m.