[S] Importing data into S-Plus-4

Marc R. Feldesman (feldesmanm@pdx.edu)
Wed, 18 Feb 1998 21:18:36 -0800

Forgive this question but I've just added S-Plus 4 to my statistical
toolbox. My current question involves the import function. I'm importing
from the menus, not using the command line.

The import engine for S-Plus is obviously licensed from Stat-Transfer.
(I'd be shocked if this weren't true). I use Stat-Transfer all the time.
In Stat/Transfer 4.0+ (4.1.3 to be exact), conversions TO S-Plus from any
other format retain the case of the filename and the case of the variable
names. Thus, if I import a Systat file named "apehum.sys", Stat/Transfer
would name it "apehum" as the data.frame for S-Plus. If there were 4
variables - "a", "b", "c", and "d", Stat/Transfer would assign them S-Plus
column vector names "a", "b", "c", "d". Now, using the Stat/Transfer
engine inside of S-Plus to move the same file, the engine imports
"apehum.sys" as "Apehum.sys", and the variables "a", "b", "c", "d" as "A",
"B", "C", "D".

If you know a file well, as one should, this is most disconcerting. Why
shouldn't S-Plus' import function work the same way as Stat/Transfer since
they are presumably using the same routines to do the import? I realize
that Stat/Transfer's stand-alone version is probably newer than S-Plus 4,
but as far as I can recall, Stat/Transfer has preserved the case of the
variable name and the file name.

Mathsoft People? Can you comment?

Steve. Care to comment?


Dr. Marc R. Feldesman
email: feldesmanm@pdx.edu
email: feldesman@ibm.net
pager: 503-870-2515
fax: 503-725-3905

"If ignorance is bliss then why aren't there more happy people?" Lawrence

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