29 Sep
2004
29 Sep
'04
9:41 p.m.
I'm having problems with my code: R doesn't recognize the objects I
define in my function, though it does recognize (and as far as I can
tell, correctly execute) the function. But, I need the
internally-defined objects in order to do other calculations. Any
thoughts on why R won't let me see those objects (matrices,
specifically)?
29 Sep
29 Sep
10:06 p.m.
Each function operates in its own environment. So if you do
stuff inside a function, but don't return it at the end of the
function, it's gone. You can't get it back. So you need to
return it as an element in a list object (for multiple matricies
of different dimensions, for example) or in an array (for
matricies of the same dimension). Having saved your output from
the function, you need to extract the elements that you wish to
manipulate (by remembering its list name, or position in the
array).
----- Original Message -----
From: "Jonathan Harris" <jaharris(a)fas.harvard.edu>
To: <gov2001-l(a)lists.fas.harvard.edu>
Sent: Thursday, September 30, 2004 1:40 AM
Subject: [gov2001-l] objects defined inside functions...
I'm having problems with my code: R doesn't
recognize the
objects I define in my function, though it does recognize (and
as far as I can tell, correctly execute) the function. But, I
need the internally-defined objects in order to do other
calculations. Any thoughts on why R won't let me see those
objects (matrices, specifically)?
_______________________________________________
gov2001-l mailing list
gov2001-l(a)lists.fas.harvard.edu
http://lists.fas.harvard.edu/mailman/listinfo/gov2001-l
10:51 p.m.
Can you give me an idea of *how* to do that? I've scoured Venables and
Ripley, as well as various other help guides to no avail...
On Sep 30, 2004, at 2:05 AM, Olivia Lau wrote:
Each function operates in its own environment. So if
you do stuff
inside a function, but don't return it at the end of the function,
it's gone. You can't get it back. So you need to return it as an
element in a list object (for multiple matricies of different
dimensions, for example) or in an array (for matricies of the same
dimension). Having saved your output from the function, you need to
extract the elements that you wish to manipulate (by remembering its
list name, or position in the array).
----- Original Message ----- From: "Jonathan Harris"
<jaharris(a)fas.harvard.edu>
To: <gov2001-l(a)lists.fas.harvard.edu>
Sent: Thursday, September 30, 2004 1:40 AM
Subject: [gov2001-l] objects defined inside functions...
I'm having problems with my code: R
doesn't recognize the objects I
define in my function, though it does recognize (and as far as I can
tell, correctly execute) the function. But, I need the
internally-defined objects in order to do other calculations. Any
thoughts on why R won't let me see those objects (matrices,
specifically)?
_______________________________________________
gov2001-l mailing list
gov2001-l(a)lists.fas.harvard.edu
http://lists.fas.harvard.edu/mailman/listinfo/gov2001-l
_______________________________________________
gov2001-l mailing list
gov2001-l(a)lists.fas.harvard.edu
http://lists.fas.harvard.edu/mailman/listinfo/gov2001-l 
30 Sep
30 Sep
4:49 a.m.
One way I found to do this is to write
object2<<-object1
instead of
object2<-object1
in your function. This makes a durable object2 that lasts outside of
the function.
It sounds like there are other ways to do this, though..
for more on this one, see
http://cran.r-project.org/doc/manuals/R-intro.pdf section 10.5 and
10.7.
ae.
On Thu, 30 Sep 2004 02:50:49 -0400, Jonathan Harris
<jaharris(a)fas.harvard.edu> wrote:
Can you give me an idea of *how* to do that? I've
scoured Venables and
Ripley, as well as various other help guides to no avail...
On Sep 30, 2004, at 2:05 AM, Olivia Lau wrote:
Each function operates in its own environment.
So if you do stuff
inside a function, but don't return it at the end of the function,
it's gone. You can't get it back. So you need to return it as an
element in a list object (for multiple matricies of different
dimensions, for example) or in an array (for matricies of the same
dimension). Having saved your output from the function, you need to
extract the elements that you wish to manipulate (by remembering its
list name, or position in the array).
----- Original Message ----- From: "Jonathan Harris"
<jaharris(a)fas.harvard.edu>
To: <gov2001-l(a)lists.fas.harvard.edu>
Sent: Thursday, September 30, 2004 1:40 AM
Subject: [gov2001-l] objects defined inside functions...
_______________________________________________
gov2001-l mailing list
gov2001-l(a)lists.fas.harvard.edu
http://lists.fas.harvard.edu/mailman/listinfo/gov2001-l
I'm having problems with my code: R
doesn't recognize the objects I
define in my function, though it does recognize (and as far as I can
tell, correctly execute) the function. But, I need the
internally-defined objects in order to do other calculations. Any
thoughts on why R won't let me see those objects (matrices,
specifically)?
_______________________________________________
gov2001-l mailing list
gov2001-l(a)lists.fas.harvard.edu
http://lists.fas.harvard.edu/mailman/listinfo/gov2001-l
_______________________________________________
gov2001-l mailing list
gov2001-l(a)lists.fas.harvard.edu
http://lists.fas.harvard.edu/mailman/listinfo/gov2001-l
5:05 a.m.
This is excruciatingly easy, but not required at all for this
assigment. Let's talk about it in section today.
----- Original Message -----
From: "Andrew Eggers" <aeggers(a)gmail.com>
To: <gov2001-l(a)lists.fas.harvard.edu>
Sent: Thursday, September 30, 2004 8:49 AM
Subject: Re: [gov2001-l] objects defined inside functions...
One way I found to do this is to write
object2<<-object1
instead of
object2<-object1
in your function. This makes a durable object2 that lasts
outside of
the function.
It sounds like there are other ways to do this, though..
for more on this one, see
http://cran.r-project.org/doc/manuals/R-intro.pdf section
10.5 and
10.7.
ae.
On Thu, 30 Sep 2004 02:50:49 -0400, Jonathan Harris
<jaharris(a)fas.harvard.edu> wrote:
Can you give me an idea of *how* to do that?
I've scoured
Venables and
Ripley, as well as various other help guides to no avail...
On Sep 30, 2004, at 2:05 AM, Olivia Lau wrote:
_______________________________________________
gov2001-l mailing list
gov2001-l(a)lists.fas.harvard.edu
http://lists.fas.harvard.edu/mailman/listinfo/gov2001-l
Each function operates in its own environment.
So if you
do stuff
inside a function, but don't return it at the end of the
function,
it's gone. You can't get it back. So you need to return
it as an
element in a list object (for multiple matricies of
different
dimensions, for example) or in an array (for matricies of
the same
dimension). Having saved your output from the function,
you need to
extract the elements that you wish to manipulate (by
remembering its
list name, or position in the array).
----- Original Message ----- From: "Jonathan Harris"
<jaharris(a)fas.harvard.edu>
To: <gov2001-l(a)lists.fas.harvard.edu>
Sent: Thursday, September 30, 2004 1:40 AM
Subject: [gov2001-l] objects defined inside functions...
_______________________________________________
gov2001-l mailing list
gov2001-l(a)lists.fas.harvard.edu
http://lists.fas.harvard.edu/mailman/listinfo/gov2001-l
I'm having problems with my code: R
doesn't recognize the
objects I
define in my function, though it does recognize (and as
far as I can
tell, correctly execute) the function. But, I need the
internally-defined objects in order to do other
calculations. Any
thoughts on why R won't let me see those objects
(matrices,
specifically)?
_______________________________________________
gov2001-l mailing list
gov2001-l(a)lists.fas.harvard.edu
http://lists.fas.harvard.edu/mailman/listinfo/gov2001-l
_______________________________________________
gov2001-l mailing list
gov2001-l(a)lists.fas.harvard.edu
http://lists.fas.harvard.edu/mailman/listinfo/gov2001-l
7152
days inactive
7152
days old
gov2001@lists.gking.harvard.edu
4 comments
3 participants
participants (3)
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aeggers＠gmail.com -
jaharris＠fas.harvard.edu -
olau＠fas.harvard.edu