Why The Results Of Cluster Alogotytm Are Coming In The Following Way
Jul 28, 2006
Hi
I have data in the following format
Custid Age Product
101 25 ProdA
101 25 ProdB
102 25 ProdA
103 50 ProdC
104 55 ProdA
105 50 ProdC
when I am using Clustering algorithm with 2 clusters and trying to perdict the product column the results are coming as below
Custid Age Product PerdictProd
101 25 ProdA ProdA
101 25 ProdB ProdA
102 25 ProdA ProdA
103 50 ProdC ProdC
104 55 ProdA ProdC
105 50 ProdC ProdC
Why so pl let me know where I am going wrong and is the data is not proper
Thanks
Rajesh Ladda
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Mar 6, 2002
I'm baffled by the results of the following query:
__________________________________________________ ______
select events.[report number], [microfilm number], [crash date]
into lowspeed
from events inner join vehicles
on events.[report number] = vehicles.[report number]
where [dummy record] = 'N'
and [estimated mph] between 1 and 10
and ([1st harmful event] = 01
or [2nd harmful event] = 01)
and [type of vehicle] in
('01','02','03','04','05','06','07','08','10','11' ,'12')
and [crash injury severity] = 5
select events.[report number], [microfilm number], [crash date]
into notlowspeed
from events inner join vehicles
on events.[report number] = vehicles.[report number]
where [dummy record] = 'N'
and [estimated mph] > 10
and ([1st harmful event] = 01
or [2nd harmful event] = 01)
and [type of vehicle] in
('01','02','03','04','05','06','07','08','10','11' ,'12')
and [crash injury severity] = 5
select distinct [report number], [microfilm number], [crash date]
into truelowspeed
from lowspeed where [report number] not in (select [report number] from
notlowspeed)
select [report number]
into pedtable
from pedestrians
select [report number],[microfilm number], [crash date]
as [Lowspeed Fatal Crashes - 1994]
from truelowspeed
where [report number] not in (select [report number] from pedtable)
drop table pedtable
drop table truelowspeed
drop table lowspeed
drop table notlowspeed
_______________________________________________
Let me explain what I'm trying to do.
In the first temp table "lowspeed," I'm trying to lump all crashes where a vehicle was doing between 1 and 10 mph.
In "notlowspeed," I'm setting up a table of crashes in which at least one vehicle was going over 10 mph.
By the third gyration, I'm trying to generate "truelowspeed;" which I thought would contain only crashes in which all of the criterion in the first two queries were satisfied and all of the vehicles involved in the crashes were doing between 1 and 10 mph (NO vehicles exceeding the 1 to 10 mph parameter).
The "pedtable" maneuver is simply to pull out any of these crashes in which a pedestrian was involved.
What I'm getting is a lot of crashes in which I have dummy records, several crashes in which one of the vehicles was going over 10 mph, and types of vehicles involved in the crash that should have been excluded by the criterion I specified.
Thoroughly stumped. Would be most grateful for any kind insight/advice.
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------------------------
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