proc.time
Running Time of Spotfire Enterprise Runtime for R

### Description

Returns a length 5 vector of cumulative times for the current engine session.

### Usage

    proc.time()
    ## S3 method for class 'proc_time':
    print(x, ...)
    ## S3 method for class 'proc_time':
    summary(object, ...)

### Arguments

x | An object of class "proc_time" to print
object | An object of class "proc_time" to summarize
... | Other arguments to print and summary are silently ignored.

Value
returns a five-long numeric vector of class proc_time giving the user, system, and elapsed times for the currently running process and the total user and system times for any child processes that have started and finished. (The child times are currently NA on Windows.)
The names attached to this vector are "user.self", "sys.self", "elapsed", "user.child", and "sys.child".
All times have units of seconds.
Note
This function is likely to be most useful in recording checkpoints for computations. You can time particular expressions by computing the difference between such checkpoints. The last two columns (elapsed times for child processes) are missing values, NA, in Windows.
The print and summary methods for class proc_time add the child times, if not NA, to the session times to show the total user, system, and elapsed times and make their names "user", "system", and "elapsed".
References
Becker, R. A., Chambers, J. M., and Wilks, A. R. 1988. The New S Language. Pacific Grove, CA: Wadsworth & Brooks/Cole Advanced Books and Software.
See Also
system.time, Sys.time
Examples

    now <- proc.time()	 # checkpoint
    random <- runif(1e7)     # computation of interest
    proc.time() - now	 # time taken for computation
    # or, equivalently,
    system.time(runif(1e7))  # time taken for computation

Package base version 6.1.5-18
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