Hi Robert: Thanks for your response, as well. I'm sorry. As you've discovered, I made some capitalization errors when posting my R code. The actual R code does use "lme", "data", and "random". The dataframe is indeed named "emiss" and each item in the formula is a column in the dataframe. I used the following R code to read in the comma-delimited file (first line contains headings): emiss <- read.table("data.csv", header=TRUE, sep=",") # NA for missing data (default) A review of the dataframe "emiss" shows that all items, except "STUDY", "VEHICLE" and "NEW", are of type "num". The items "STUDY", "VEHICLE", and "NEW" are of type "factor". I will work on creating some "fake data". However, since I don't have SAS v6.12 anymore, I can't provide the so-called "correct results". As for the R hang, your wording is correct: "R gets caught in a processing loop that produces no errors or warnings", even after 15 minutes on an 8-core Mac Pro. As I recall, the SAS code produced an answer in 15 seconds or less on a single core Mac II back in 1999. Thanks again! --Dennis On 8/11/17 9:27 AM, Robert Baer wrote:> > > On 8/10/2017 8:34 AM, Dennis F. Kahlbaum wrote: >> -- snip -- > I don't have real help, but I'll remind you that R is case sensitive, > and it looks like that will be at least one problem in the solution > your are working on below: > lme not LME > data not DATA > random = RANDOM >> ------------------------------------------------------------------ >> >> The R code I've devised for the PROC MIXED statement is shown below: >> >> ------------------------------------------------------------------ >> FitTHC <- LME(ln_thc ~ rv + t5 + t9 + ar + ol + ox + su + bz, >> DATA = emiss, >> RANDOM = ??????? ) >> ------------------------------------------------------------------ >> >> As indicated, the problem I'm having is in constructing the >> equivalent code for the RANDOM and any remaining settings. I've tried >> >> RANDOM = ~1 + rv + t5 + t9 + ar + ol + ox + su + bz | new) >> >> but R hangs > Are the items in your random formula columns in a dataframe named > emiss? Do they have data types? Even if the data are proprietary > some fake data can make the problem more concrete. > You are saying "gets caught in a processing loop that produces no > errors or warnings"??? > >> and never produces a result. Therefore, what is the equivalent code >> for the SAS RANDOM? >> >> Thanks! >> >> ______________________________________________ >> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. >

> On Aug 11, 2017, at 7:56 AM, Dennis F. Kahlbaum <kbomb at umich.edu> wrote: > > Hi Robert: > > Thanks for your response, as well. > > I'm sorry. As you've discovered, I made some capitalization errors when posting my R code. The actual R code does use "lme", "data", and "random". > > The dataframe is indeed named "emiss" and each item in the formula is a column in the dataframe. I used the following R code to read in the comma-delimited file (first line contains headings): > > emiss <- read.table("data.csv", header=TRUE, sep=",") # NA for missing data (default) > > A review of the dataframe "emiss" shows that all items, except "STUDY", "VEHICLE" and "NEW", are of type "num". The items "STUDY", "VEHICLE", and "NEW" are of type "factor". > > I will work on creating some "fake data". However, since I don't have SAS v6.12 anymore, I can't provide the so-called "correct results". > > As for the R hang, your wording is correct: "R gets caught in a processing loop that produces no errors or warnings", even after 15 minutes on an 8-core Mac Pro. As I recall, the SAS code produced an answer in 15 seconds or less on a single core Mac II back in 1999.You really should start over. Compose a correct version of code and data and resubmit to the place this questions _should_ have gone in the first place: the R-SIG-Mixed-models mailing list (correct spelling and link should be on the listinfo page.)> > Thanks again! > > --Dennis > > > > On 8/11/17 9:27 AM, Robert Baer wrote: >> >> >> On 8/10/2017 8:34 AM, Dennis F. Kahlbaum wrote: >>> -- snip -- >> I don't have real help, but I'll remind you that R is case sensitive, and it looks like that will be at least one problem in the solution your are working on below: >> lme not LME >> data not DATA >> random = RANDOM >>> ------------------------------------------------------------------ >>> >>> The R code I've devised for the PROC MIXED statement is shown below: >>> >>> ------------------------------------------------------------------ >>> FitTHC <- LME(ln_thc ~ rv + t5 + t9 + ar + ol + ox + su + bz, >>> DATA = emiss, >>> RANDOM = ??????? ) >>> ------------------------------------------------------------------ >>> >>> As indicated, the problem I'm having is in constructing the equivalent code for the RANDOM and any remaining settings. I've tried >>> >>> RANDOM = ~1 + rv + t5 + t9 + ar + ol + ox + su + bz | new) >>> >>> but R hangs >> Are the items in your random formula columns in a dataframe named emiss? Do they have data types? Even if the data are proprietary some fake data can make the problem more concrete. >> You are saying "gets caught in a processing loop that produces no errors or warnings"??? >> >>> and never produces a result. Therefore, what is the equivalent code for the SAS RANDOM? >>> >>> Thanks! >>> >>> ______________________________________________ >>> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see >>> https://stat.ethz.ch/mailman/listinfo/r-help >>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >>> and provide commented, minimal, self-contained, reproducible code. >> > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.David Winsemius Alameda, CA, USA 'Any technology distinguishable from magic is insufficiently advanced.' -Gehm's Corollary to Clarke's Third Law