ji.ds.sum: Returns the sum of all the values present in its arguments
In datashield/ji.dev.cl: ji.dev.cl

Description Usage Arguments Value Author(s) Examples

Returns the sum of all the values present in its arguments

1 2	ji.ds.sum(datasources = NULL, vector = NULL, newobj = NULL)

`datasources`	a list of opal object(s) obtained after login in to opal servers; these objects hold also the data assign to R, as `dataframe`, from opal datasources.
`vector`	a vector that holds the objects to sum (numeric, complex og logical objects)
`newobj`	the name of the output object. If this argument is set to `NULL`, the name of the new object is 'sum_vect'.

a message is displayed when the action is completed.

Gaye, A. (amadou.gaye

{

# load the file that contains the login details
data(logindata)

# login and assign the required variables to R
myvar <- list("LAB_TSC","LAB_HDL")
opals <- datashield.login(logins=logindata,assign=TRUE,variables=myvar)

# compute the sum of 'LAB_TSC' and 'LAB_HDL' (removing missing values if exist)
myvect <- quote(sum(D$LAB_TSC, D$LAB_HDL, na.rm=T))
ji.ds.sum(datasources=opals, vector=myvect)
}