Using the TimeSeries algorithm, how do I forecast more than one time period ahead? I read in you book on page 182 that PredictTimeSeries function can take a parameter for the number of time periods you want to predict. Fore example, SELECT PredictTimeSeries(Bread,5) tells the algorithm to predict the next 5 time periods. Can you tell me how to change that parameter using the graphic interfaces?
Thanks!
Hi all,
I'm using an olap cube in a report (dash board).
The last "actual" period should be viewed when the user opens the report. I'm using the MDX tail function for that.
Once the report is opened the users want to select another period. Then I want to put period as a parameter.
But that is not possible since the parameter check box is no longer available when using a MDX filter expression.
Is there any solution to this problem?
Any help will be appreciated.
Hi,
I have prepared a time series model. The model works well with few cases. Answering time raises extremly after processing the model with all cases.
In a book I read sth. about a cahing possibilty. But how can this be defined in Visual Studio ?
Thanks in advance
Achim
Hi
I am new to Data mining in SQL Server. I am using SQL 2005 to create a forecast model for Product sales. I two fact tables that I am using. One has all the Orders historically with the line item details. The other table is a time dimension table which has the value of each of the time values referenced in the Orders. So the time dimesion has multiple values for one day as it goes down to the hour the order was placed.
Can I create a forecast using the time series algorithm in the Data mining module. When I tried to use this algorithm, I got an error that the time is not synchronized with starting series "Unknown" and I should try to set the missing_value_Substitution parameter to previous.
Can some one explain to me how this will resolve my issue. I read in one of the articles on Data mining that in order to use the time series algorithm , I need to have unique set of values for the time. Can some one help me with this
Thanks
AY
I've saw many tutorials about using TimeSeries. But all of them using a table. But I'm using a cube to represent data. So I'm trying to build forecast from cube, but it doesn't so good as in could be.
I've got the same problem as desribed in Microsoft's tutoral Adventure work. So I need to forecast a series of sales.
The problem is that I can't create second key value, as it shown in tutorial. So I can't split good's sales. I have created dimentions for goods and for time. So cube's browser shows me very handsome view, but the problem with mining model still remains...
Please, help me! How can I solve this problem?
Can I create a separate table from cube to build forecast by this table?
Or I can solve this problem not using tables?
Hi,
I mined a small-size table using TimeSeries. There are only 3 columns in the mining model : payment, region_name, and period. Payment is of type floating-point designated as predicted column, region_name is of type string/text designated as key, period is of type numeric(6) with year and month designated as key time. Build and deployment are successful. The value of period spans from 200501 to 200603, with PERIODICITY_HINT is set to {12}.
(1) However, the viewer displays the result in percentage, not the values of column payment.
How can I instruct the viewer (or Visual Studio) NOT to display it on percentage?
(2) Two key-values are missing. In the data, there are 8 key-values. But the viewer displays only 6 of them. How can this be?
Thank you,
Bernaridho
There are two questions.
One is whe TimeSeries can predict text content。
The other is whether Sequence Cluster can predict multi columns.
Revenue 4 GB (4086 MB)
Partitioned into 12 partitions (about 340 MB each)
The count of records : almost 16.8 millions
Each partition has approximately 1.4 million records
Algorithm chosen : TimeSeries
Time Key : Period (6 digits integer with values range from 200501 to 200512,
integer values)
(Non-time) Key : Telephone number, variable-length string/text, max 15 char
Input-and-predicted column1 : SLI007
Input-and-predicted column2 : SLI008
I have set the value for PERIODICITY_HINT to {12}. I created the project 3
times in 3 machines. All fail. The error message is the same :
Internal error : An unexpected exception occured.
Internal error: An unexpected error occurred (file 'dmtimeseries.cpp', line 646, function 'DMTimeSeries::ProcessCaseTS3and4').
I searched for the file in C:Program FilesMicrosoft SQL Server and its
subfolders. I didn't find it.
What causes the error?
I tested 3 machines to check whether the performance of the machine is the culprit.
Single processor Pentium M 2.0 GHz with 2 GB Memory
Double processor Xeon 2.4 GHz with 3 GB Memory
Double processor Xeon 3.4 GHz with 4 GB Memory
But the project in all those machines return the same error.
Any idea?
Thank you
Bernaridho
I have few more clarification regarding time series.
Firstly
In my model the month level product sales value represented across 1st day of every month. So that the key time column is of datetime datatype containing a sequence of dates representing the 1st day of every month of the year.
Eg: 2006-01-01, 2006-02-01€¦€¦€¦. etc. all in (yy-mm-dd) format
But
when I make prediction for next five months, though it makes monthly
predictions the date part for the months are random whereas I expect
the date part to be 1st of every month. What is the reason for this and how can I overcome it.
Secondly
Predicted
sales values for some time period are negative though I do not have any
negative value in the training data. What is the reason for this and
how can I rectify it?
Thirdly
In
one of your earlier posts you had said that the time series algorithm
does not have any built in time intelligence but uses the key time
column as a time sequence stamp. So If have to make predictions for a
particular time period where the time slice for each time period is 25
days or 50 days etc, then I understand that the input data used to
train the model should be in the same time sequence.
Or
Can I specify the span of the time period according to which the prediction needs to be made?
Basically
how can I use the same time series model to make monthly, yearly,
quarterly, daily or predictions or for custom time period like I have
mentioned above.
hi,I am a novice SSAS Programmer.I need a prediction Query in time series algorithm, so that it should predict for a particular date.I dont know how to use where condition in a prediction Query.
Thanks
Karthik
Whether can cube be the data source of TimeSeries algorithm?
If it is ture,how can id do?
Thanksï¼?ï¼?ï¼?
First of all I would like to politely greet everybody as I'm new on that forum and new to Data Mining in fact.
To introduce myself I can say I'm a student of Computer Science and I'm trying to use Time Series algorithm for weather analysis. I know that forecasting weather is a hopeless task even for the fastest computers in the world but what I'm trying to do is a kind of aposteriori analysis of historical data to notice some dependencies or characteristic weather behavior on a specified region and perhaps make some short time predictions.
I tried Time Series Algorithm although I have some doubts about methodological justification of this choice (if You have any critical comments please share them with me). But my main questions are about the usage of the algorithm itself:
I've read the documentation and a tutorial on this page for historical predictions but I still don't know what exactly are HistoricalModelCount and HistoricalModelGap. I know that my historical predictions are bounded by a €“ HistoricalModelCount*HistoricalModelGap*, but it's a rather operational knowledge... The explanation is always clouded with an €œinternal model€? phrase. Can You point me to a document where I can find some more detailed information? (What is the form of the model? How is it built? etc.)
Periodicity Hint. How should I treat these optional values? Are they other possible periods of data? I have data about weather measurements made every six hours for thirteen years** so is it a good choice to set this parameter to {365*4,4} (The first goes for a year and the second for a day)?
This is a technical question and I'm really ashamed of myself that I bother You with it. On the time chart in a model Viewer I can see date from the last year only. Zooming out/in, clicking insanely on every pixel on the screen, did not give any result (apart of broken mouse buttons). Is is possible to browse that data in mining model viewer chart?
Thank You in advance for Your replies!
*This formula suggests how this parameters could work but I would like to know it for sure €“ don't want to make some awful mistakes in my project. :-)
**Of course I plan to reduce the amount of data but the period will stay.
The first question is how to of TimeSeries Algorithm?
Using SQL Server 2005 TimeSeries Algorithm ,I build a data mining model.But after three days,it is still training.The data has 2,200,00 rows.
So what can i do to improve the processing speed.
Thanks!
The second question is parameters in Data Mining Query Task.
Data Mining Query Task is used to get data from data mining model.In the mining model form, i choose a mining model . And in the query form,i wrote a dmx ,"select flattened top 100 predicttimeseries([Xssl],1)
from [Time Series XSSL]".Last i choose a table that is for the data from mining model.
If the "100" is variable , how can i do ?
Thanks a lot!
Attached is a file that generates a sample dataset from which I want to forecast a value for column 'Parcel Count 2014' from tomorrow (30/10/2014) till the end of December (31/12/2014). The forecast should be based on values from column 'Parcel Count 2013' for the same Month.
View 9 Replies View RelatedBackground is that I am recreating charts in SSRS that were being created in Excel. The source data is residing in a SQL Server database. I'm having a hard time coming up with a SQL query to provide a 6 month forecast. I can get my data into a pivot (within a stored procedure) in the following format:
Period---------Date--------------------------------Percent
1--------------2013-11-01 00:00:00.000---------0.3762
2--------------2013-12-01 00:00:00.000---------0.3584
3--------------2014-01-01 00:00:00.000---------0.3604
4--------------2014-02-01 00:00:00.000---------0.3292
5--------------2014-03-01 00:00:00.000---------0.3519
[Code] ....
I need to forecast the next 6 dates 12/1/2014 thru 5/1/2015 using the last 6 months in the data set (periods 8 thru 13)
Period---------Date--------------------------------Percent-------Forecast
1--------------2013-11-01 00:00:00.000---------0.3762
2--------------2013-12-01 00:00:00.000---------0.3584
3--------------2014-01-01 00:00:00.000---------0.3604
4--------------2014-02-01 00:00:00.000---------0.3292
5--------------2014-03-01 00:00:00.000---------0.3519
6--------------2014-04-01 00:00:00.000---------0.4064
[code].....
how to use the first table to generate the forecast values in the second table.
Hi,
I have built a time series model to forecast sales value
I have data from jan 2004 to jan 2006 and the sales value is
at a day level in my database. But I am aggregating it to month level in the
DSV of the mining model.
I am required to make only historical predictions using the
above model starting form jan 2004 to jan 2006 for every month.
I have set Historical_Model_Count
and Historical_Model_Gap parameter
values to 24 and 10 respectively, and trying to predict for the past few months
(PredictTImeseries(SalesValue,-1,1))
But its throwing me the following error
Error(Data Mining): A time series
prediction was requested with a start time further in the past than the
internal models of the mining model, Sales Forecast, specified in the
HISTORIC_MODEL_GAP and HISTORIC_MODEL_COUNT parameters can process
In fact it throws the above error irrespective of what the Historical_Model_Count and Historical_Model_Gap parameter values
are
I am not able to figure our why this problem is happening?
What should the parameter values for the above scenario?
It would also be helpful if I can get an explanation on how
these two parameters affect the historical predictions. I kind of understand
that these two parameters are important for historical predictions but don€™t
know why or how.
I have a result set that looks like this:
Code Block
Quarter
Year
EstimatedValue
ClosePercent
EstimatedCloseDate
4
2007
100000
50
12/31/07 5:00 AM
4
2007
20000
50
11/30/07 5:00 AM
4
2007
20000
90
10/30/07 5:00 AM
1
2008
278000
50
3/31/08 5:00 AM
4
2007
200000
50
11/30/07 5:00 AM
4
2007
225000
90
10/31/07 5:00 AM
4
2007
36500
90
10/31/07 5:00 AM
4
2007
80000
90
10/31/07 5:00 AM
4
2007
107200
90
10/31/07 5:00 AM
4
2007
225000
75
12/31/07 5:00 AM
4
2007
35000
50
12/31/07 5:00 AM
I have create a simple tabular rolling forecast report (with cumulative totals) from today (October) thru the next 12 months that looks like this. It smartly works no matter when the report is generated, by starting with this CurrentMonth and moving forward by using 1,2,3,4,etc. in the dateadd: =MonthName(datepart("m",dateadd("m",1,Now())))
The report sample (formatting lost in dropping it in here):
Code Block
Close Pct
October
November
December
January
February
25.%
$0
$0
$26,625
$0
$0
50.%
$237,500
$110,000
$262,500
$0
$0
75.%
$56,250
$0
$891,075
$0
$0
90.%
$1,051,830
$0
$0
$0
$0
Monthly Total
$1,345,580
$110,000
$1,180,200
$0
$0
Cumulative Total
$1,345,580
$1,455,580
$2,635,780
$2,635,780
$2,635,780
It is working fine....there doesn't seem to be anything wrong with it (all numbers total correctly, etc.), but it is very unelegant.....and I know there must be a better way.
In the righthand most month (which would be September 2008) column, I have a formula that produces the amount (the Monthly Total amount is the same):
Code Block=sum(iif(datepart("m",dateadd("m",11,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0)))
and for the Cumulative Total Amount it gets really hideous, as it is trying to add up all of the totals across the board:
Code Block
=sum(iif(datepart("m",dateadd("m",0,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0))+iif(datepart("m",dateadd("m",1,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0))+iif(datepart("m",dateadd("m",2,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0))+iif(datepart("m",dateadd("m",3,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0))+iif(datepart("m",dateadd("m",4,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0))+iif(datepart("m",dateadd("m",5,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0))+iif(datepart("m",dateadd("m",6,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0))+iif(datepart("m",dateadd("m",7,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0))+iif(datepart("m",dateadd("m",8,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0))+iif(datepart("m",dateadd("m",9,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0))+iif(datepart("m",dateadd("m",10,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0))+iif(datepart("m",dateadd("m",11,Now()))=datepart("m",Fields!EstimatedCloseDate.Value),Cdec(Fields!estimatedvalue.Value*Fields!ClosePct.Value*.01),cdec(0)))
I have searched high and low for examples of reports that do something similar.
Can anyone offer any advice?
Thanks.
Hello...
I am new to SSAS and i want to try to build a "Sales" model. I will have some "Usage" data for some timespanns, but I am not quite sure how to tackle this. Is there somewhere a "Howto" for this?
Edit: There are several locations, and for each location a forecast is needed. And the Icing would be If I would be able to tell where my supplies must go 1st to achieve the best sales...
The potential Client wants to use Oracle but I would like to show them that SQL Server is the better tool for this ;)
Is there any way to copy my Data of 2015 to the Planning/Forecasting Value of 2016?
My question is based on that we use INFOR ION BI right now and there we can just add an Button in our reports wich physically copies the value from one year to the next year based on some other rules in the cube.
Now I need to make this example work with SSAS and Excel PivotTables but I cant figure out how.
I have absolutely no clue where and how to accomplish it. Do I use Calculations, do I use Actions, do i make it in the Dataview, Cube or directly in Excel?
What is the best way to forecastestimate space for non-clustered index on a table?
Example :
Table name : Test123
Row : 170000000
Reserved : 18000000 KB
Data : 70000000 KB
Index: 40000000 KB
Note: Test123 already has clustered index and 2 non clustered indexes.
I want to calculate the sum of actual sales until a date and forecast sales after a date.I am not sure what the best approach to this problem is, but I have tried my best with the following approach. Any better ways to solve this (using DAX).
I have created a parameter table that offers the last date of each month as possible choices to the user. I have tried to create a measure that sums actual sales up until this date.
SalesQuantityActual:=IF(HASONEVALUE(parLastActualMonth[Date]);CALCULATE(factSalesActual[Quantity];factSalesActual[Date]<=VALUES(parLastActualMonth[Date]));BLANK())
Unfortunately the measure above does not work.
In addition to the parameter table, I also have a normal date table.
Hi,Just wonder if i can get a period of dates to be inserted into a temp table (with a single field [Sales_Date]) base on a Start and End Date using a select query?For Eg,Start = '8/1/2005', End = '8/5/2005'In the temp table,8/1/20058/2/20058/3/20058/4/20058/5/2005 Your help is appreciated. Thks.RgdsRyan
View 3 Replies View RelatedI am trying to concatenate three fields into one in a View. I have the following data:
Last Name
First Name
Middle Initial (can be null)
I need my resultant field data to look like the following:
"Doe, John P."
I'm having a problem writing SQL that is sensitive to placing the period after the middle initial only if there is a middle initial present. If there isn't a middle initial, I just want the following: "Doe, John".
I have tried the following CASE statement:
CASE WHEN middleInitial IS NOT NULL THEN ' ' + middleInitial + '.' ELSE '' END
However, I get an error indicating that the CASE statement is not supported in the Query Designer.
How can I resolve this problem in a View? Is there a function similar to ISNULL(middleInitial, '') that would allow for the "."?
Hi,
I want to remove old databases from server.
Any way not running a trace to find if db was not in use for 6 months ?
Thank you
Alex
I have a transaction table which has Date as datetime field, amount and account number. i want to find out count of checks that were written in a period of 4 days which exceeded i.e. > $400, between 401 and 500, > 501 for a single month. the table has data for more than a year and i want the results then grouped in monthly format like in
OCT between 300 & 400 #30 (30 customers gave checks total worth $300-$400 within any 4 consecutive days period in the month of OCT )
between 400 & 500 # 20
> 501 # 10
NOV between 300 & 400 #30
between 400 & 500 # 20
> 501 # 10
and so on for a 6 month period.
I'm using SQL Server 2000.
Example table:
PeopleID Date Status
1 2004-01-01 True
1 2005-01-01 True
1 2006-01-01 True
2 2004-01-01 True
2 2005-01-01 False
2 2006-01-01 True
I'm trying to find a way to query whether or not someone has had a specific status for 3 years in a row. As you can see from the table above, PeopleID 1 has had a "Status" of "True" for 3 years in a row, whereas PeopleID 2 hasn't--there was one year where they had "False".
I'm wondering I can query this, or if I'm going to have to scan the records manually. :(
I suppose I could write a stored procedure and do some looping too.
Appreciate any help, thanks!
I have a table as seen below and need to calculate the downtime in a given period.
dateandtime Equipment No. Status
1/2/2013 ! 4 ! 0
1/5/2013 ! 3 ! 1
1/8/2013 ! 8 ! 0
1/3/2013 ! 5 ! 1
1/2/2013 ! 1 ! 0
1/4/2013 ! 4 ! 1
The ! is my attempt to make a line between columns...
Guys,
I am running SQL Server 2005 Enterp Trial version, which is about to expire in 14 days..
Is this possible to Extend this?
Or
Un-installing and re-installing may give me back 180 days again? I haven't tried this, but need to know before I do an attempt?
Don't have other machine, don't want to re-built my system..
Any help?
Thanks in advance
SKR
Alright here's my situation.
I have two servers both running Eval copies of SQL Server 2005 Enterprise. This is only because I had the promise that I would be getting a shiney new server with a fully licensed copy of the server soon so I wasn't worried when I setup these two programs to use these. Now they are dragging their feet to approve the server and software so I'm scared.
First question - What will happen when the eval period runs out?
Second question - Can I tell what the date was when I installed the server?
These both will help me push management to approve atleast the purchase of an SQL license if I can't get the server.
Thanks.
Rob
How do you build a query to calculate the time of employement or any space of time for each person in a table? I'm thinking I would want to use a "Current Date" and "Select Datediff" calculations of some sort and reference the hiredate against the current date but I have been unable to find much on this type of query.. Please help..
Thanks..
HiI am hoping someone might be able to help me out with this.I am writing a helpdesk system which records agents logging in and outof the system.I need to write a stored procedure which will show the peak number ofagents logged in concurrently during a specified time period. Withinthe time period, the person viewing the report should be able tospecify intervals at which to see the data.Eg. There is already a table in the system which holds loggedin/logged out data like22/11/2004 14:02 - 22/11/2004 17:3022/11/2004 09:00 - 22/11/2004 17:1222/11/2004 10:25 - 22/11/2004 16:3022/11/2004 11:02 - 22/11/2004 12:3022/11/2004 16:00 - 22/11/2004 17:30The report user can then say for example they want to view databetween 10th November and 12th November broken down into 15 minutesintervals which would produce a table like this:10/11/2004 00:00 - 10/11/2004 00:1510/11/2004 00:15 - 10/11/2004 00:3010/11/2004 00:30 - 10/11/2004 00:4510/11/2004 00:45 - 10/11/2004 01:00 etc etcAgainst each of these time slots, I need to work out the peak numberof concurrent agents logged in using the first table.Can anyone make any suggestions? The time period the report user canchoose are either 15 mins, 30 mins, 45 mins, 1 hour and 1 day.Thanks in advance
View 3 Replies View RelatedHello to everybody, I'm quite new to the Analysis Services world and would like to create a BI Solution for one of my customers with the following problem: I have sales data from the ERP from different years (2005 and on). My customer wants a report that shows the sales of the current year up to the month he wants to specify (e.g. january - march 2008) compared with the sales of the same period of the previous year (e.g. january - march 2007), divided into product category.
Is there a way to build a cube and then a matrix report in Reporting Services that lets the user specify the period for the current year and shows the same period of the previous year. Do I achieve this behaviour with a calculated member in the cube (e.g. ParallelPeriod)
Any hint (or web like example) would be very appreciated.
Best regards
Alessandro
Hi,
I have a table of the following structure:
TaskID ResourceName StartDateTime FinishDateTime
12345 Joe 01 Jun 2007 12:30PM 01 Jun 2007 13:30PM
99999 Joe 01 Jun 2007 16:30PM 01 Jun 2007 19:30PM
If I have a new task id that lasts for 1 hour how can I look for the first available space that my "1 hour task " will fit into
i.e i want it to return 01 Jun 2007 13:31PM as my "new task" will fit nicely between TASKID 12345 and Task ID 99999
Hope that makes sense
Thanks