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Rodrigo Abt

2003-Nov-10 16:01 UTC

[R] Memory issues..

Hi dear R-listers, I'm trying to fit a 3-level model using lme in R. My
sample size is about 2965 and 3 factors:

year (5 levels), ssize (4 levels), condition (2 levels).

When I issue the following command:
>lme(var~year*ssize*condition,random=~ssize+condition|subject,data=smp,method
="ML")

I got the following error:

Error in logLik.lmeStructInt(lmeSt, lmePars) :
        Calloc could not allocate (65230 of 8) memory
In addition: Warning message:
Reached total allocation of 120Mb: see help(memory.size)

I'm currently using a Win2000 machine with 128Mb RAM and a 1.2 Gb processor.
My version of R is 1.7.1.

Thanks in advance,

Rodrigo Abt.
Department of Economic and Tributary Studies,
SII, Chile.

Roger D. Peng

2003-Nov-10 16:21 UTC

head link

[R] Memory issues..

The error says you don't have enough memory on your computer.   
Unfortunately, the only solution may be to buy more.

-roger

Rodrigo Abt wrote:
>Hi dear R-listers, I'm trying to fit a 3-level model using lme in R. My
>sample size is about 2965 and 3 factors:
>
>year (5 levels), ssize (4 levels), condition (2 levels).
>
>When I issue the following command:
>
>  
>
>lme(var~year*ssize*condition,random=~ssize+condition|subject,data=smp,method
>="ML")
>
>I got the following error:
>
>Error in logLik.lmeStructInt(lmeSt, lmePars) :
>        Calloc could not allocate (65230 of 8) memory
>In addition: Warning message:
>Reached total allocation of 120Mb: see help(memory.size)
>
>I'm currently using a Win2000 machine with 128Mb RAM and a 1.2 Gb
processor.
>My version of R is 1.7.1.
>
>Thanks in advance,
>
>Rodrigo Abt.
>Department of Economic and Tributary Studies,
>SII, Chile.
>
>______________________________________________
>R-help at stat.math.ethz.ch mailing list
>https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>
>  
>

Prof Brian Ripley

2003-Nov-10 16:35 UTC

head link

[R] Memory issues..

Have you done what the message said?

On Mon, 10 Nov 2003, Rodrigo Abt wrote:
> Hi dear R-listers, I'm trying to fit a 3-level model using lme in R. My
> sample size is about 2965 and 3 factors:
> 
> year (5 levels), ssize (4 levels), condition (2 levels).
> 
> When I issue the following command:
> 
> >
>
lme(var~year*ssize*condition,random=~ssize+condition|subject,data=smp,method
> ="ML")
> 
> I got the following error:
> 
> Error in logLik.lmeStructInt(lmeSt, lmePars) :
>         Calloc could not allocate (65230 of 8) memory
> In addition: Warning message:
> Reached total allocation of 120Mb: see help(memory.size)
> 
> I'm currently using a Win2000 machine with 128Mb RAM and a 1.2 Gb
processor.
> My version of R is 1.7.1.
You probably need more memory, but you could try following the advice in 
the help page pointed to.  If you increase the memory allocation R will 
continue to run, albeit slowly.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

kjetil@entelnet.bo

2003-Nov-10 18:41 UTC

head link

[R] Memory issues..

On 10 Nov 2003 at 13:01, Rodrigo Abt wrote:

See?Memory
for how you can get R to use virtual memory.

Kjetil Halvorsen

> Hi dear R-listers, I'm trying to fit a 3-level model using lme in R. My
> sample size is about 2965 and 3 factors:
> 
> year (5 levels), ssize (4 levels), condition (2 levels).
> 
> When I issue the following command:
> 
> >
>
lme(var~year*ssize*condition,random=~ssize+condition|subject,data=smp,method
> ="ML")
> 
> I got the following error:
> 
> Error in logLik.lmeStructInt(lmeSt, lmePars) :
>         Calloc could not allocate (65230 of 8) memory
> In addition: Warning message:
> Reached total allocation of 120Mb: see help(memory.size)
> 
> I'm currently using a Win2000 machine with 128Mb RAM and a 1.2 Gb
processor.
> My version of R is 1.7.1.
> 
> Thanks in advance,
> 
> Rodrigo Abt.
> Department of Economic and Tributary Studies,
> SII, Chile.
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help

JFRI (Jesper Frickman)

2003-Nov-12 14:27 UTC

head link

[R] Memory issues..

How much processing takes place before you get to the lme call? Maybe R
has just used up the memory on something else. I think there is a fair
amount of memory leak, as I get similar problems with my program. I use
R 1.8.0. My program goes as follows.

1. Use RODBC to get a data.frame containing assays to analyze (17 assays
are found).
2. Define an AnalyzeAssay(assay, suffix) function to do the following:
	a) Use RODBC to get data.
	b) Store dataset "limsdata" in workspace using the <<- operator
to avoid the following error in qqnorm.lme: Error in eval(expr, envir,
enclos) : Object "limsdata" not found, when I call it with a grouping
formula like: ~ resid(.) | ORDCURV.
	c) Call lme to analyze data.
	d) Produce some diagnostic plots. Record them by setting
record=TRUE on the trellis.device
	e) Save the plots on win.metafile using replayPlot(...)
	f) Save text to a file using sink(...)

3. Call the function for each assay using the code:

# Analyze each assay
for(i in 1:length(assays[,1]))
{
	writeLines(paste("Analyzing ", assays$DILUTION[i], " ",
assays$PROFNO[i], "...", sep=""))
	flush.console()
	AnalyzeAssay(assays$DILUTION[i], assays$PROFNO[i])

	# Clean up memory
	rm(limsdata)
	gc()
}

As you can see, I try to remove the dataset stored in workspace and then
call gc() to clean up my memory as I go.

Nevertheless, when I come to assay 11 out of 17, it stops with a memory
allocation error. I have to quit R, and start again with assay 11, then
it stops again with assay 15 and finally 17. The last assays have much
more data than the first ones, but all assays can be completed as long
as I keep restarting...

Maybe restarting the job can help you getting it done?

Cheers,
Jesper

-----Original Message-----
From: Rodrigo Abt [mailto:rodrigo.abt at sii.cl] 
Sent: Monday, November 10, 2003 11:02 AM
To: r-help at stat.math.ethz.ch
Subject: [R] Memory issues..


Hi dear R-listers, I'm trying to fit a 3-level model using lme in R. My
sample size is about 2965 and 3 factors:

year (5 levels), ssize (4 levels), condition (2 levels).

When I issue the following command:
>lme(var~year*ssize*condition,random=~ssize+condition|subject,data=smp,me
thod
="ML")

I got the following error:

Error in logLik.lmeStructInt(lmeSt, lmePars) :
        Calloc could not allocate (65230 of 8) memory
In addition: Warning message:
Reached total allocation of 120Mb: see help(memory.size)

I'm currently using a Win2000 machine with 128Mb RAM and a 1.2 Gb
processor. My version of R is 1.7.1.

Thanks in advance,

Rodrigo Abt.
Department of Economic and Tributary Studies,
SII, Chile.

JFRI (Jesper Frickman)

2003-Nov-12 15:50 UTC

head link

[R] Memory issues..

I am using Windows 2000.

Kind regards, 
Jesper Frickmann 
Statistician, Quality Control 
Novozymes North America Inc. 
Tel. +1 919 494 3266
Fax +1 919 494 3460

-----Original Message-----
From: Thomas W Blackwell [mailto:tblackw at umich.edu] 
Sent: Wednesday, November 12, 2003 10:43 AM
To: JFRI (Jesper Frickman)
Cc: rodrigo.abt at sii.cl; jmacdon at umich.edu; r-help at stat.math.ethz.ch
Subject: RE: [R] Memory issues..


Jesper  -  (off-list)

Jim MacDonald reports seeing different memory-management behavior
between Windows and Linux operating systems on the same, dual boot
machine.  Unfortunately, this is happening at the operating system
level, so the R code cannot do anything about it.  I have cc'ed Jim on
this email, hoping that he will give more details to the entire list.
What operating systems (and versions of R) do you think Rodrigo and
Jesper are using ?

Specifically for Jesper's  AnalyzeAssay() function:  There is some
manipulation you can do using  formula()  or  as.formula()  that will
assign a local object as the environment in which to find values for the
terms in a formula.  (I've never done this, so I can't give you an
example of working code, only references to the help pages for
"formula"
and "environment".  It's often very instructive to literally type
in the
sequence of statements given as examples at the bottom of each help
page.)  I think this will allow you to avoid assigning to the global
workspace.

Are you sure that the call to  rm() below is actually removing the copy
of limsdata that's in .GlobalEnv, rather than a local copy ? I would
expect you to have to specify  where=1  in order to get the behavior you
want.

-  tom blackwell  -  u michigan medical school  -  ann arbor  -

On Wed, 12 Nov 2003, JFRI (Jesper Frickman) wrote:
> How much processing takes place before you get to the lme call? Maybe 
> R has just used up the memory on something else. I think there is a 
> fair amount of memory leak, as I get similar problems with my program.
> I use R 1.8.0. My program goes as follows.
>
> 1. Use RODBC to get a data.frame containing assays to analyze (17 
> assays are found). 2. Define an AnalyzeAssay(assay, suffix) function 
> to do the following:
> 	a) Use RODBC to get data.
> 	b) Store dataset "limsdata" in workspace using the <<-
operator
to > avoid the following error in qqnorm.lme: Error in eval(expr, envir,
> enclos) : Object "limsdata" not found, when I call it with a
grouping
> formula like: ~ resid(.) | ORDCURV.
> 	c) Call lme to analyze data.
> 	d) Produce some diagnostic plots. Record them by setting
record=TRUE > on the trellis.device
> 	e) Save the plots on win.metafile using replayPlot(...)
> 	f) Save text to a file using sink(...)
>
> 3. Call the function for each assay using the code:
>
> # Analyze each assay
> for(i in 1:length(assays[,1]))
> {
> 	writeLines(paste("Analyzing ", assays$DILUTION[i], "
",
> assays$PROFNO[i], "...", sep=""))
> 	flush.console()
> 	AnalyzeAssay(assays$DILUTION[i], assays$PROFNO[i])
>
> 	# Clean up memory
> 	rm(limsdata)
> 	gc()
> }
>
> As you can see, I try to remove the dataset stored in workspace and 
> then call gc() to clean up my memory as I go.
>
> Nevertheless, when I come to assay 11 out of 17, it stops with a 
> memory allocation error. I have to quit R, and start again with assay 
> 11, then it stops again with assay 15 and finally 17. The last assays 
> have much more data than the first ones, but all assays can be 
> completed as long as I keep restarting...
>
> Maybe restarting the job can help you getting it done?
>
> Cheers,
> Jesper
>
> -----Original Message-----
> From: Rodrigo Abt [mailto:rodrigo.abt at sii.cl]
> Sent: Monday, November 10, 2003 11:02 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Memory issues..
>
>
> Hi dear R-listers, I'm trying to fit a 3-level model using lme in R. 
> My sample size is about 2965 and 3 factors:
>
> year (5 levels), ssize (4 levels), condition (2 levels).
>
> When I issue the following command:
>
> >
> lme(var~year*ssize*condition,random=~ssize+condition|subject,data=smp,
> me
> thod
> ="ML")
>
> I got the following error:
>
> Error in logLik.lmeStructInt(lmeSt, lmePars) :
>         Calloc could not allocate (65230 of 8) memory
> In addition: Warning message:
> Reached total allocation of 120Mb: see help(memory.size)
>
> I'm currently using a Win2000 machine with 128Mb RAM and a 1.2 Gb 
> processor. My version of R is 1.7.1.
>
> Thanks in advance,
>
> Rodrigo Abt.
> Department of Economic and Tributary Studies,
> SII, Chile.
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list 
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>

JFRI (Jesper Frickman)

2003-Nov-12 16:29 UTC

head link

[R] Memory issues..

I have just tried listing limsdata from the workspace and it is indeed
gone from .GlobalEnv. I also tried passing the environment to the
as.formula function, but it still doesn't work.

Kind regards, 
Jesper Frickmann 
Statistician, Quality Control 
Novozymes North America Inc. 
Tel. +1 919 494 3266
Fax +1 919 494 3460


-----Original Message-----
From: Thomas W Blackwell [mailto:tblackw at umich.edu] 
Sent: Wednesday, November 12, 2003 10:43 AM
To: JFRI (Jesper Frickman)
Cc: rodrigo.abt at sii.cl; jmacdon at umich.edu; r-help at stat.math.ethz.ch
Subject: RE: [R] Memory issues..


Jesper  -  (off-list)

Jim MacDonald reports seeing different memory-management behavior
between Windows and Linux operating systems on the same, dual boot
machine.  Unfortunately, this is happening at the operating system
level, so the R code cannot do anything about it.  I have cc'ed Jim on
this email, hoping that he will give more details to the entire list.
What operating systems (and versions of R) do you think Rodrigo and
Jesper are using ?

Specifically for Jesper's  AnalyzeAssay() function:  There is some
manipulation you can do using  formula()  or  as.formula()  that will
assign a local object as the environment in which to find values for the
terms in a formula.  (I've never done this, so I can't give you an
example of working code, only references to the help pages for
"formula"
and "environment".  It's often very instructive to literally type
in the
sequence of statements given as examples at the bottom of each help
page.)  I think this will allow you to avoid assigning to the global
workspace.

Are you sure that the call to  rm() below is actually removing the copy
of limsdata that's in .GlobalEnv, rather than a local copy ? I would
expect you to have to specify  where=1  in order to get the behavior you
want.

-  tom blackwell  -  u michigan medical school  -  ann arbor  -

On Wed, 12 Nov 2003, JFRI (Jesper Frickman) wrote:
> How much processing takes place before you get to the lme call? Maybe 
> R has just used up the memory on something else. I think there is a 
> fair amount of memory leak, as I get similar problems with my program.
> I use R 1.8.0. My program goes as follows.
>
> 1. Use RODBC to get a data.frame containing assays to analyze (17 
> assays are found). 2. Define an AnalyzeAssay(assay, suffix) function 
> to do the following:
> 	a) Use RODBC to get data.
> 	b) Store dataset "limsdata" in workspace using the <<-
operator
to > avoid the following error in qqnorm.lme: Error in eval(expr, envir,
> enclos) : Object "limsdata" not found, when I call it with a
grouping
> formula like: ~ resid(.) | ORDCURV.
> 	c) Call lme to analyze data.
> 	d) Produce some diagnostic plots. Record them by setting
record=TRUE > on the trellis.device
> 	e) Save the plots on win.metafile using replayPlot(...)
> 	f) Save text to a file using sink(...)
>
> 3. Call the function for each assay using the code:
>
> # Analyze each assay
> for(i in 1:length(assays[,1]))
> {
> 	writeLines(paste("Analyzing ", assays$DILUTION[i], "
",
> assays$PROFNO[i], "...", sep=""))
> 	flush.console()
> 	AnalyzeAssay(assays$DILUTION[i], assays$PROFNO[i])
>
> 	# Clean up memory
> 	rm(limsdata)
> 	gc()
> }
>
> As you can see, I try to remove the dataset stored in workspace and 
> then call gc() to clean up my memory as I go.
>
> Nevertheless, when I come to assay 11 out of 17, it stops with a 
> memory allocation error. I have to quit R, and start again with assay 
> 11, then it stops again with assay 15 and finally 17. The last assays 
> have much more data than the first ones, but all assays can be 
> completed as long as I keep restarting...
>
> Maybe restarting the job can help you getting it done?
>
> Cheers,
> Jesper
>
> -----Original Message-----
> From: Rodrigo Abt [mailto:rodrigo.abt at sii.cl]
> Sent: Monday, November 10, 2003 11:02 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] Memory issues..
>
>
> Hi dear R-listers, I'm trying to fit a 3-level model using lme in R. 
> My sample size is about 2965 and 3 factors:
>
> year (5 levels), ssize (4 levels), condition (2 levels).
>
> When I issue the following command:
>
> >
> lme(var~year*ssize*condition,random=~ssize+condition|subject,data=smp,
> me
> thod
> ="ML")
>
> I got the following error:
>
> Error in logLik.lmeStructInt(lmeSt, lmePars) :
>         Calloc could not allocate (65230 of 8) memory
> In addition: Warning message:
> Reached total allocation of 120Mb: see help(memory.size)
>
> I'm currently using a Win2000 machine with 128Mb RAM and a 1.2 Gb 
> processor. My version of R is 1.7.1.
>
> Thanks in advance,
>
> Rodrigo Abt.
> Department of Economic and Tributary Studies,
> SII, Chile.
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list 
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>

JFRI (Jesper Frickman)

2003-Nov-13 16:02 UTC

head link

[R] Memory issues..

I tried first to increase --min-vsize to 2G (which I assume means as
much of the 512M RAM available on my system as possible). The idea was
to allocate all the heap memory in one huge chunk to avoid
fragmentation. It actually brought the number of assays completed up
from 11 to 13 before it stopped with the usual error. Then I increased
--max-memory-size to 2G, and when I came in this morning it was still
running. However, it would probably take days instead of hours to
complete the last couple of assays! So it is easier to restart a couple
of times...

Do you think that running R on Linux would fix the problem? I use Linux
on my private home PC, and I might get a permission to try it out on the
company network... If I have a good reason to do so!

Cheers,
Jesper

-----Original Message-----
From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk] 
Sent: Wednesday, November 12, 2003 10:55 AM
To: JFRI (Jesper Frickman)
Cc: r-help at stat.math.ethz.ch
Subject: RE: [R] Memory issues..


On Wed, 12 Nov 2003, JFRI (Jesper Frickman) wrote:
> How much processing takes place before you get to the lme call? Maybe 
> R has just used up the memory on something else. I think there is a 
> fair amount of memory leak, as I get similar problems with my program.
> I use
Windows, right?  I don't think this is memory leak, but rather
fragmentation.  Hopefully the memory management in R-devel will ease
this, 
and you might like to compile that up and try it.

On R 1.8.0 on Windows you have to be able to find a block of contiguous 
memory of the needed size, so fragmentation can kill you.  Try
increasing 
--max-memory-size unless you are near 2Gb.
> R 1.8.0. My program goes as follows.
> 
> 1. Use RODBC to get a data.frame containing assays to analyze (17 
> assays are found). 2. Define an AnalyzeAssay(assay, suffix) function 
> to do the following:
> 	a) Use RODBC to get data.
> 	b) Store dataset "limsdata" in workspace using the <<-
operator
to > avoid the following error in qqnorm.lme: Error in eval(expr, envir,
> enclos) : Object "limsdata" not found, when I call it with a
grouping
> formula like: ~ resid(.) | ORDCURV.
> 	c) Call lme to analyze data.
> 	d) Produce some diagnostic plots. Record them by setting
record=TRUE > on the trellis.device
> 	e) Save the plots on win.metafile using replayPlot(...)
> 	f) Save text to a file using sink(...)
> 
> 3. Call the function for each assay using the code:
> 
> # Analyze each assay
> for(i in 1:length(assays[,1]))
> {
> 	writeLines(paste("Analyzing ", assays$DILUTION[i], "
",
> assays$PROFNO[i], "...", sep=""))
> 	flush.console()
> 	AnalyzeAssay(assays$DILUTION[i], assays$PROFNO[i])
> 
> 	# Clean up memory
> 	rm(limsdata)
> 	gc()
> }
> 
> As you can see, I try to remove the dataset stored in workspace and 
> then call gc() to clean up my memory as I go.
> 
> Nevertheless, when I come to assay 11 out of 17, it stops with a 
> memory allocation error. I have to quit R, and start again with assay 
> 11, then it stops again with assay 15 and finally 17. The last assays 
> have much more data than the first ones, but all assays can be 
> completed as long as I keep restarting...
> 
> Maybe restarting the job can help you getting it done?
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

JFRI (Jesper Frickmann)

2003-Nov-21 15:25 UTC

head link

[R] Memory issues..

I just tried out the 1.8.1 beta build, and it works! It ran through all
17 assays without a any problems on Windows 2000.

Thanks to the R development team, they did a great job!

Kind regards, 
Jesper Frickmann 
Statistician, Quality Control 
Novozymes North America Inc. 
Tel. +1 919 494 3266
Fax +1 919 494 3460


-----Original Message-----
From: James MacDonald [mailto:jmacdon at med.umich.edu] 
Sent: Wednesday, November 12, 2003 1:09 PM
To: JFRI (Jesper Frickman); rodrigo.abt at sii.cl; tblackw at umich.edu
Cc: jmacdon at umich.edu
Subject: RE: [R] Memory issues..


There was a discussion about memory allocation on the R-devel list this
summer, and apparently somebody has done something about it in R-1.8.1
(according to BDR's earlier post). If you can compile yourself on
windows, you could check it out yourself.

Original post http://maths.newcastle.edu.au/~rking/R/devel/03b/0432.html
BDR's  reply http://maths.newcastle.edu.au/~rking/R/devel/03b/0433.html

BDR's recent comment
"Hopefully the memory management in R-devel will ease this, 
and you might like to compile that up and try it."

HTH,

Jim





James W. MacDonald
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623
>>> Rodrigo Abt <rodrigo.abt at sii.cl> 11/12/03 12:08PM
>>>I started R with --max-mem-size=300M and it "seems" to work better (at
least it doesn't hang up my machine), but I don't have any results yet.

P.S.: Are there any differences in memory management from 1.7.x to 1.8.0
?

Greetings,
Rodrigo Abt B.,
Statistical Analyst,
Department of Economic and Tributary Studies,
Studies Subdivision,
SII, Chile.

-----Mensaje original-----
De: Thomas W Blackwell [mailto:tblackw at umich.edu] 
Enviado el: Miercoles, 12 de Noviembre de 2003 12:43
Para: JFRI (Jesper Frickman)
CC: rodrigo.abt at sii.cl; jmacdon at umich.edu; r-help at stat.math.ethz.ch 
Asunto: RE: [R] Memory issues..


Jesper  -  (off-list)

Jim MacDonald reports seeing different memory-management behavior
between Windows and Linux operating systems on the same, dual boot
machine.  Unfortunately, this is happening at the operating system
level, so the R code cannot do anything about it.  I have cc'ed Jim on
this email, hoping that he will give more details to the entire list.
What operating systems (and versions of R) do you think Rodrigo and
Jesper are using ?

Specifically for Jesper's  AnalyzeAssay() function:  There is some
manipulation you can do using  formula()  or  as.formula()  that will
assign a local object as the environment in which to find values for the
terms in a formula.  (I've never done this, so I can't give you an
example of working code, only references to the help pages for
"formula"
and "environment".  It's often very instructive to literally type
in the
sequence of statements given as examples at the bottom of each help
page.)  I think this will allow you to avoid assigning to the global
workspace.

Are you sure that the call to  rm() below is actually removing the copy
of limsdata that's in .GlobalEnv, rather than a local copy ? I would
expect you to have to specify  where=1  in order to get the behavior you
want.

-  tom blackwell  -  u michigan medical school  -  ann arbor  -

On Wed, 12 Nov 2003, JFRI (Jesper Frickman) wrote:
> How much processing takes place before you get to the lme call? Maybe
R> has just used up the memory on something else. I think there is a
fair> amount of memory leak, as I get similar problems with my program. I
use> R 1.8.0. My program goes as follows.
>
> 1. Use RODBC to get a data.frame containing assays to analyze (17
assays> are found).
> 2. Define an AnalyzeAssay(assay, suffix) function to do the
following:> 	a) Use RODBC to get data.
> 	b) Store dataset "limsdata" in workspace using the <<-
operator
to > avoid the following error in qqnorm.lme: Error in eval(expr,
envir,> enclos) : Object "limsdata" not found, when I call it with a
grouping> formula like: ~ resid(.) | ORDCURV.
> 	c) Call lme to analyze data.
> 	d) Produce some diagnostic plots. Record them by setting
record=TRUE > on the trellis.device
> 	e) Save the plots on win.metafile using replayPlot(...)
> 	f) Save text to a file using sink(...)
>
> 3. Call the function for each assay using the code:
>
> # Analyze each assay
> for(i in 1:length(assays[,1]))
> {
> 	writeLines(paste("Analyzing ", assays$DILUTION[i], "
",
> assays$PROFNO[i], "...", sep=""))
> 	flush.console()
> 	AnalyzeAssay(assays$DILUTION[i], assays$PROFNO[i])
>
> 	# Clean up memory
> 	rm(limsdata)
> 	gc()
> }
>
> As you can see, I try to remove the dataset stored in workspace and
then> call gc() to clean up my memory as I go.
>
> Nevertheless, when I come to assay 11 out of 17, it stops with a
memory> allocation error. I have to quit R, and start again with assay 11,
then> it stops again with assay 15 and finally 17. The last assays have
much> more data than the first ones, but all assays can be completed as
long> as I keep restarting...
>
> Maybe restarting the job can help you getting it done?
>
> Cheers,
> Jesper
>
> -----Original Message-----
> From: Rodrigo Abt [mailto:rodrigo.abt at sii.cl]
> Sent: Monday, November 10, 2003 11:02 AM
> To: r-help at stat.math.ethz.ch 
> Subject: [R] Memory issues..
>
>
> Hi dear R-listers, I'm trying to fit a 3-level model using lme in R.
My> sample size is about 2965 and 3 factors:
>
> year (5 levels), ssize (4 levels), condition (2 levels).
>
> When I issue the following command:
>
> >
>
lme(var~year*ssize*condition,random=~ssize+condition|subject,data=smp,me> thod
> ="ML")
>
> I got the following error:
>
> Error in logLik.lmeStructInt(lmeSt, lmePars) :
>         Calloc could not allocate (65230 of 8) memory
> In addition: Warning message:
> Reached total allocation of 120Mb: see help(memory.size)
>
> I'm currently using a Win2000 machine with 128Mb RAM and a 1.2 Gb 
> processor. My version of R is 1.7.1.
>
> Thanks in advance,
>
> Rodrigo Abt.
> Department of Economic and Tributary Studies,
> SII, Chile.
>
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list 
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
>

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