createInstanceObject

the identifier of an already defined computation

defnId

an indentifier to use for the created instance

instanceId

a file name to use for saving the data. Typically <code>NULL</code>, this
is only needed when one is using a single opencpu server to behave like multiple
sites in which case the data file name serves to distinguish the site-specific data files.
When it is <code>NULL</code>, the data file name is taken from the configuration settings

dataFileName

The function <code>createInstanceObject</code> uses a definition identified by
defnId to create the appropriate object instance. The instantiated object is assigned
the instanceId and saved under the dataFileName if the latter is specified.
This instantiated object may change state between iterations when a computation executes

Implementing algorithms and fitting models when sites (possibly remote) share
computation summaries rather than actual data over HTTP with a master R process (using
'opencpu', for example). A stratified Cox model and a singular value decomposition are
provided. The former makes direct use of code from the R 'survival' package. (That is,
the underlying Cox model code is derived from that in the R 'survival' package.)
Sites may provide data via several means: CSV files, Redcap API, etc. An extensible
design allows for new methods to be added in the future. Web applications are provided
(via 'shiny') for the implemented methods to help in designing and deploying the
computations.

createInstanceObject: Given the definition identifier of an object, instantiate and store object in workspace

Description

Usage

Arguments

Value

See Also