frequent itemset, yeah.. I did not use that for a while
thanks.
On 10/19/07, Gad Abraham <[EMAIL PROTECTED]> wrote:
> Weiwei Shi wrote:
> > Hi,
> >
> > I am looking for an algorithm (better if it is implemented in R) which
> > can do the following:
> >
> > from the following list:
> > a,b,c,d
Weiwei Shi wrote:
> Hi,
>
> I am looking for an algorithm (better if it is implemented in R) which
> can do the following:
>
> from the following list:
> a,b,c,d
> a,b,c
> b,c
> a,b,c,d,e
>
> to calculate
> a,b,c,d: 2
> a,b,c: 3
> a,b: 3
> a,c: 3
> b,c: 4
> b,c,d:2
>
> here, the order is not im
t; "2"
[10,] " b c d" "2"
[11,] " a b c d" "2"
>
>
On 10/18/07, Weiwei Shi <[EMAIL PROTECTED]> wrote:
> The rule is search on any combinations whose size is more than 1, like
> ab, ac, abc, ...
>
> The storage can be like
o: jim holtman
> > Cc: [EMAIL PROTECTED]
> > Subject: Re: [R] alignment algorithm or pattern frequency calculation
> >
> > for example,
> >
> > a,b: 3 which means a and b appear together 3 times in my input list.
> >
> > On 10/18/07, jim holtman <
4]]
[1] "a" "b" "c" "d" "e"
On 10/18/07, Nordlund, Dan (DSHS/RDA) <[EMAIL PROTECTED]> wrote:
> > -Original Message-
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Weiwei Shi
> > Sent: Thursday, Octo
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Weiwei Shi
> Sent: Thursday, October 18, 2007 3:32 PM
> To: jim holtman
> Cc: [EMAIL PROTECTED]
> Subject: Re: [R] alignment algorithm or pattern frequency calculation
>
&g
the naive way is to exhausive search, but too bad for large and real situation.
On 10/18/07, Weiwei Shi <[EMAIL PROTECTED]> wrote:
> for example,
>
> a,b: 3 which means a and b appear together 3 times in my input list.
>
> On 10/18/07, jim holtman <[EMAIL PROTECTED]> wrote:
> > It would be helpful
for example,
a,b: 3 which means a and b appear together 3 times in my input list.
On 10/18/07, jim holtman <[EMAIL PROTECTED]> wrote:
> It would be helpful if you explained what the numbers mean.
>
> On 10/18/07, Weiwei Shi <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > I am looking for an algorithm
It would be helpful if you explained what the numbers mean.
On 10/18/07, Weiwei Shi <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I am looking for an algorithm (better if it is implemented in R) which
> can do the following:
>
> from the following list:
> a,b,c,d
> a,b,c
> b,c
> a,b,c,d,e
>
> to calculate
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