Is it possible to merge rows with same date?

[Eivinn Fjellhammer]

Hi,

Is it possible to restructure or merge rows in a datafile where there are
several observations with same date. Date format is "mmm yy." The reason
for wanting to merge the observations is to convert the datafile to a
timeseries. Is there a simpler way to accomplish this?

Regards
Eivinn

[Spousta Jan]

Hi Eivinn,

To restructure - use the Restructure Wizard, Data -> Restructure...

To merge - use Aggregate, Data -> Aggregate..., then select the
aggregating functions (mean, sum,...), break variable (=time) and Save =
Write a new datafile...

HTH

Jan

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Eivinn Fjellhammer
Sent: Tuesday, December 19, 2006 9:05 AM
To: [hidden email]
Subject: Is it possible to merge rows with same date?

Hi,

Is it possible to restructure or merge rows in a datafile where there
are several observations with same date. Date format is "mmm yy." The
reason for wanting to merge the observations is to convert the datafile
to a timeseries. Is there a simpler way to accomplish this?

Regards
Eivinn

[Eivinn Fjellhammer]

Hi,

I've been using Aggregate, with the date variable as break variable.
Still, it doesn't merge the rows. The program runs the function I indicate
in each cell. The rows, however, stay the same.

Eivinn




Spousta Jan <[hidden email]>
Sendt av: "SPSSX(r) Discussion" <[hidden email]>
19.12.2006 09:17
Vennligst send svar til
Spousta Jan <[hidden email]>


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Emne
Re: Is it possible to merge rows with same date?






Hi Eivinn,

To restructure - use the Restructure Wizard, Data -> Restructure...

To merge - use Aggregate, Data -> Aggregate..., then select the
aggregating functions (mean, sum,...), break variable (=time) and Save =
Write a new datafile...

HTH

Jan

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Eivinn Fjellhammer
Sent: Tuesday, December 19, 2006 9:05 AM
To: [hidden email]
Subject: Is it possible to merge rows with same date?

Hi,

Is it possible to restructure or merge rows in a datafile where there
are several observations with same date. Date format is "mmm yy." The
reason for wanting to merge the observations is to convert the datafile
to a timeseries. Is there a simpler way to accomplish this?

Regards
Eivinn

[Spousta Jan]

The aggregated file should be saved on the disk. You should open it and
work with it. Do not forget to set Save = Write a new datafile... and
choose an appropriate name for the aggregated file.

Another possibility is that the dates in one month are in fact not equal
- they may be formated to show "Dec 06" but under this format, different
days of the monts are hidden. In this case you need to round the dates
and then aggregate. Try to change the format in the Variable View to
dd-mmm-yy and see whether the dates in one month are really equal.

Jan

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Eivinn Fjellhammer
Sent: Tuesday, December 19, 2006 9:37 AM
To: [hidden email]
Subject: Ad: Re: Is it possible to merge rows with same date?

Hi,

I've been using Aggregate, with the date variable as break variable.
Still, it doesn't merge the rows. The program runs the function I
indicate in each cell. The rows, however, stay the same.

Eivinn




Spousta Jan <[hidden email]>
Sendt av: "SPSSX(r) Discussion" <[hidden email]>
19.12.2006 09:17
Vennligst send svar til
Spousta Jan <[hidden email]>


Til
[hidden email]
cc

Emne
Re: Is it possible to merge rows with same date?






Hi Eivinn,

To restructure - use the Restructure Wizard, Data -> Restructure...

To merge - use Aggregate, Data -> Aggregate..., then select the
aggregating functions (mean, sum,...), break variable (=time) and Save =
Write a new datafile...

HTH

Jan

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Eivinn Fjellhammer
Sent: Tuesday, December 19, 2006 9:05 AM
To: [hidden email]
Subject: Is it possible to merge rows with same date?

Hi,

Is it possible to restructure or merge rows in a datafile where there
are several observations with same date. Date format is "mmm yy." The
reason for wanting to merge the observations is to convert the datafile
to a timeseries. Is there a simpler way to accomplish this?

Regards
Eivinn

[Eivinn Fjellhammer]

Thanks,

This solved the problem. The issue was that I had defined the date
variable, also the break variable, as a scale and as a date. I redefined
the variable as a nominal text string, and ran the aggregate command
again. I then defined the date variable in the new data file back to the
"date" format. This resulted in the dataset I wanted. Thank you again for
valuable input.

Best regards
Eivinn




Spousta Jan <[hidden email]>
Sendt av: "SPSSX(r) Discussion" <[hidden email]>
19.12.2006 12:47
Vennligst send svar til
Spousta Jan <[hidden email]>


Til
[hidden email]
cc

Emne
Re: Ad: Re: Is it possible to merge rows with same date?






The aggregated file should be saved on the disk. You should open it and
work with it. Do not forget to set Save = Write a new datafile... and
choose an appropriate name for the aggregated file.

Another possibility is that the dates in one month are in fact not equal
- they may be formated to show "Dec 06" but under this format, different
days of the monts are hidden. In this case you need to round the dates
and then aggregate. Try to change the format in the Variable View to
dd-mmm-yy and see whether the dates in one month are really equal.

Jan

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Eivinn Fjellhammer
Sent: Tuesday, December 19, 2006 9:37 AM
To: [hidden email]
Subject: Ad: Re: Is it possible to merge rows with same date?

Hi,

I've been using Aggregate, with the date variable as break variable.
Still, it doesn't merge the rows. The program runs the function I
indicate in each cell. The rows, however, stay the same.

Eivinn




Spousta Jan <[hidden email]>
Sendt av: "SPSSX(r) Discussion" <[hidden email]>
19.12.2006 09:17
Vennligst send svar til
Spousta Jan <[hidden email]>


Til
[hidden email]
cc

Emne
Re: Is it possible to merge rows with same date?






Hi Eivinn,

To restructure - use the Restructure Wizard, Data -> Restructure...

To merge - use Aggregate, Data -> Aggregate..., then select the
aggregating functions (mean, sum,...), break variable (=time) and Save =
Write a new datafile...

HTH

Jan

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Eivinn Fjellhammer
Sent: Tuesday, December 19, 2006 9:05 AM
To: [hidden email]
Subject: Is it possible to merge rows with same date?

Hi,

Is it possible to restructure or merge rows in a datafile where there
are several observations with same date. Date format is "mmm yy." The
reason for wanting to merge the observations is to convert the datafile
to a timeseries. Is there a simpler way to accomplish this?

Regards
Eivinn

[Dennis Deck]

I concur with Jan about using AGGREGATE.

Note that you should sort on ID and Date first.

Also, be sure that you have not simply reformatted a date variable as
MMMYY.  Dates 1/1/2006 and 1/15/2006 will both display as JAN 06 but the
underlying value is different so the AGGREGATE will not yield the
expected results.  In this case you'll need to recalculate the date to
keep only month and year.


Dennis Deck, PhD
RMC Research Corporation
[hidden email]

-----Original Message-----
From: Eivinn Fjellhammer [mailto:[hidden email]]
Sent: Tuesday, December 19, 2006 12:05 AM
Subject: Is it possible to merge rows with same date?

Hi,

Is it possible to restructure or merge rows in a datafile where there
are
several observations with same date. Date format is "mmm yy." The reason
for wanting to merge the observations is to convert the datafile to a
timeseries. Is there a simpler way to accomplish this?

Regards
Eivinn