R help - Jun 2010 - Pretty printing progress

I have a function that is an iterative process for estimating some MLEs. I want
to print some progress to screen as the process iterates. I would like to try
and line things up nicely in the R window, but am not sure the best way to do
this. Below is a toy example. Suppose I want the value of 10 to be just below
"iteration" and the value of -1234 to be just below 'Log
Likelihood'.

I cannot seem to get these to line up nicely on screen as a progress indicator.
Any recommendations?


cat('Iteration', '\t', 'Log Likelihood', '\n',
10, '\t', -1234, '\n')

Harold

	[[alternative HTML version deleted]]

On Thu, Jun 17, 2010 at 3:33 PM, Doran, Harold <HDoran at air.org>
wrote:
> I have a function that is an iterative process for estimating some MLEs. I
want to print some progress to screen as the process iterates. I would like to
try and line things up nicely in the R window, but am not sure the best way to
do this. Below is a toy example. Suppose I want the value of 10 to be just below
"iteration" and the value of -1234 to be just below 'Log
Likelihood'.
 Sure you just dont want to use the progress bar functions from the
plyr package:

?plyr::create_progress_bar

 another example of things being in the wrong package....

Barry

Others mentioned progress bars and sprintf, one other option is to use a named
vector and let R to the formatting:
> tmp <- c(10, -1234) # or variables to put the values in
> names(tmp) <- c('Iteration', '     Log Likelihood')
> print(tmp)
Hope this helps,

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111

> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Doran, Harold
> Sent: Thursday, June 17, 2010 8:33 AM
> To: r-help at r-project.org
> Subject: [R] Pretty printing progress
> 
> I have a function that is an iterative process for estimating some
> MLEs. I want to print some progress to screen as the process iterates.
> I would like to try and line things up nicely in the R window, but am
> not sure the best way to do this. Below is a toy example. Suppose I
> want the value of 10 to be just below "iteration" and the value
of -
> 1234 to be just below 'Log Likelihood'.
> 
> I cannot seem to get these to line up nicely on screen as a progress
> indicator. Any recommendations?
> 
> 
> cat('Iteration', '\t', 'Log Likelihood',
'\n', 10, '\t', -1234, '\n')
> 
> Harold
> 
> 	[[alternative HTML version deleted]]
> 
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