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Re: PSPP not working

From: Ann E. Dunlop
Subject: Re: PSPP not working
Date: Mon, 26 Sep 2016 08:12:21 -0400

I have run the same analyses with the same data set with no problems. So I 
don't think it's the data set. 

Ann E. Dunlop, M.A.
Doctoral Candidate,HDFS
Michigan State University

Sent from my iPhone

> On Sep 26, 2016, at 7:03 AM, John Darrington <address@hidden> wrote:
> A screenshot is probably not going to help.
> What would be more interesting would be to know exactly what analysis
> you are running.    I think you said that you were running a FREQUENCIES
> analysis on one variable.
> So:
> * How many cases in this dataset (approx) ?
> * How many distinct values does that variable have (approx) ?
> If for example you have a million cases, and this variable is a scalar
> variable, then it'll have close to a million distinct values.  In which 
> case it would not be a sensible analysis to run and I can indeed imagine
> that it would take a lot of memory and time.
> On the other hand, if the variable has only a small number of distinct
> values and if the dataset is small, then perhaps you have a diffiernt problem.
> J'
> On Mon, Sep 26, 2016 at 02:07:33PM +0530, Cecily Ray wrote:
>     Dear Alan, Ann and Harry,
>     Many thanks for your inputs on my issues of slow PSPP.
>     I have used the Task Manager as suggested by Alan and
>     found that often there is an alternation between PSPP
>     and System Idle Manager using a high percentage of memory.
>     This happens when PSPP is saying (Not Responding)
>     My laptop has 4 GB of memory in two main memory slots, according
>     to the product specification sheet.
>     If I can get a chance later I will send a screenshot.
>     Regards,
>     Cecily Ray
>     On Sat, Sep 24, 2016 at 7:47 PM, Harry Thijssen <address@hidden>
>     wrote:
>> Hi Cecily
>> I don't think PSPP is to slow with big datasets. 500 Mb is not that big. I
>> just think you are not working with an optimal configuration.
>> The tests Alan suggested would have given more info about the problem so
>> people could give you an advice. May guess at the moment is that you should
>> use  a bigger workspace or have a problem with your tmp files on a slow
>> disk. The later is unlikely as I expect just 1 disk in your laptop.
>> Assuming you have a laptop with at least 4 Gb memory I would recommend
>> setting your workspace to 500 Mb or more. You can do this in the
>> syntaxeditor window with:
>> set WORKSPACE=524288.
>> You can check this with:
>> show ALL.
>> You find the syntax editor by going in PSPPIRE to the file tab and then
>> syntax.
>> If you could tell the exact file you downloaded for your work people could
>> try to find out what is going on and help you.  It would also be usefull if
>> you could post what happens if you change your workspace settings as
>> suggested above.
>> Have fun
>> <> Date: Sat, 24 Sep
>>> 2016 00:08:10 +0530
>>> From: Cecily Ray <address@hidden>
>>> To: Alan Mead <address@hidden>
>>> Cc: "address@hidden" <address@hidden>
>>> Subject: Re: PSPP not working
>>> Message-ID:
>>>        <address@hidden
>>> Content-Type: text/plain; charset="utf-8"
>>> Alan,
>>> Thank you for your helpful replies. I now understand that PSPP works fine
>>> with smaller datasets than with the large one I am using. I think I will
>>> have
>>> to go for a trial version of SPSS.
>>> Cecily
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