Many thanks for your detailed reply.
I'll read your mail thoroughly. Thanks!
At 2013-05-23 21:56:29,"Greg Snow" <538...@gmail.com> wrote:
Meng,
This really comes down to what question you are trying to answer. Before
worrying about details of default contrasts and issues like that you
Meng,
This really comes down to what question you are trying to answer. Before
worrying about details of default contrasts and issues like that you first
need to work out what is really the question of interest. The main
difference between declaring a variable ordered or not is the default
contr
more experienced people
around or some textbook.
Regards
Petr
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-bounces@r-
> project.org] On Behalf Of meng
> Sent: Thursday, May 23, 2013 4:44 AM
> To: Uwe Ligges
> Cc: R help
> Subject: Re: [R]
On May 22, 2013, at 7:44 PM, meng wrote:
> It's not homework.
> I met this question during my practical work via R.
> The boss is an expert of biology,but he doesn't know statistics.So I must
> find the right method to this work.
>
Yes, you must. Unfortunately, the Rhelp mailing list is for pr
It's not homework.
I met this question during my practical work via R.
The boss is an expert of biology,but he doesn't know statistics.So I must find
the right method to this work.
At 2013-05-22 17:30:34,"Uwe Ligges" wrote:
>
>
>On 22.05.2013 07:09, meng wrote:
>> Thanks.
>>
>>
>> As
On 22.05.2013 07:09, meng wrote:
Thanks.
As to the data " warpbreaks", if I want to analysis the impact of
tension(L,M,H) on breaks, should I order the tension or not?
No homework questions on this list, please ask your teacher.
Best,
Uwe Ligges
Many thanks.
At 2013-05
Thanks.
As to the data " warpbreaks", if I want to analysis the impact of
tension(L,M,H) on breaks, should I order the tension or not?
Many thanks.
At 2013-05-21 20:55:18,"David Winsemius" wrote:
>
>On May 20, 2013, at 10:35 PM, meng wrote:
>
>> Hi all:
>> If the explainary variab
On May 20, 2013, at 10:35 PM, meng wrote:
> Hi all:
> If the explainary variables are ordinal,the result of regression is different
> from
> "unordered variables".But I can't understand the result of regression from
> "ordered
> variable".
>
> The data is warpbreaks,which belongs to R.
>
> If
Hi all:
If the explainary variables are ordinal,the result of regression is different
from
"unordered variables".But I can't understand the result of regression from
"ordered
variable".
The data is warpbreaks,which belongs to R.
If I use the "unordered variable"(tension):Levels: L M H
The res
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