ji.ds.colnames: Retrieves column names of a matrix-like object
In datashield/ji.dev.cl: ji.dev.cl

Description Usage Arguments Value Author(s) Examples

this function is similar to R function colnames

1	ji.ds.colnames(datasources = NULL, x = 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.
`x`	a matrix-like object

a string containing column names of the given object

Gaye, A. (amadou.gaye

{

# load that contains the login details
data(logindata)

# login
opals <- datashield.login(logins=logindata,assign=TRUE)

# Example 1: Get the column names of the assigned datasets
ji.ds.colnames(datasources=opals, x=quote(D))

# Example 2: Vectors are wrong input to the colnames function
ji.ds.colnames(datasources=opals, x=quote(D$LAB_TSC))
}