subsetHelper | R Documentation |
Compares subset and original object sizes and eventually carries out subsetting.
subsetHelper(dts, data, rs = NULL, cs = NULL)
dts |
a list of |
data |
a character string specifying the name of the data frame or the factor vector and the range of the subset. |
rs |
a vector of two integers specifying the indices of the rows de extract. |
cs |
a vector of two integers or one or more characters. |
This function is called by the function ds.subset
to ensure that the requested subset
is not larger than the original object.
This function is internal.
Server function called: dimDS
subsetHelper
returns a message or the class of the object if the
object has the same class in all studies.
## Not run:
## Version 6, for version 5 see the Wiki
# connecting to the Opal servers
require('DSI')
require('DSOpal')
require('dsBaseClient')
builder <- DSI::newDSLoginBuilder()
builder$append(server = "study1",
url = "http://192.168.56.100:8080/",
user = "administrator", password = "datashield_test&",
table = "CNSIM.CNSIM1", driver = "OpalDriver")
builder$append(server = "study2",
url = "http://192.168.56.100:8080/",
user = "administrator", password = "datashield_test&",
table = "CNSIM.CNSIM2", driver = "OpalDriver")
builder$append(server = "study3",
url = "http://192.168.56.100:8080/",
user = "administrator", password = "datashield_test&",
table = "CNSIM.CNSIM3", driver = "OpalDriver")
logindata <- builder$build()
connections <- DSI::datashield.login(logins = logindata, assign = TRUE, symbol = "D")
subsetHelper(dts = connections,
data = "D",
rs = 1:10,
cs = c("D$LAB_TSC","D$LAB_TRIG"))
# clear the Datashield R sessions and logout
datashield.logout(connections)
## End(Not run)
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.