doAzureParallel/docs/52-azure-foreach-options.md

Azure-specific Optional Flags

Flag Name	Default	Type	Meaning
chunkSize	1	Integer	Groups the number of foreach loop iterations into one task and execute them in a single R session. Consider using the chunkSize option if each iteration in the loop executes very quickly.
maxTaskRetryCount	3	Integer	The number of retries the task will perform.
enableCloudCombine	TRUE	Boolean	Enables the merge task to be performed
wait	TRUE	Boolean	Set the job to a non-blocking state. This allows you to perform R tasks while waiting for your results to be complete.
autoDeleteJob	TRUE	Boolean	Deletes the job metadata and result after the foreach loop has been executed.
job	The time of job creation	Character	The name of you job. This name will appear in the RStudio console, Azure Batch, and Azure Storage.

Azure-specific Package Installation Flags

Flag Name	Default	Type	Meaning
github	c()	Vector	A vector of github package names. The proper name format of installing a github package is the repository address: username/repo[/subdir]
bioconductor	c()	Vector	A vector of bioconductor package names

Bypassing merge task

Skipping the merge task is useful when the tasks results don't need to be merged into a list. To bypass the merge task, you can pass the enableCloudCombine flag to the foreach object:

# Enable merge task
foreach(i = 1:3, .options.azure = list(enableCloudCombine = TRUE))

# Disable merge task
foreach(i = 1:3, .options.azure = list(enableCloudCombine = FALSE))

Note: User defined functions for the merge task is on our list of features that we are planning on doing.