define measure
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Dear all,
I just want to know why and how the data measure has been defined, as soon as we import any excel data. I ts been defiend ramdomly by itself , on what basis its getting defined as nominal, ordinal, or scale.
if we have data defien data properties in the menu, why it cant automaticaly define the measure. because, the problem is to define the measures for huge variables manually ?
Rajesh M S |
Automatic reply: define measure
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I will be out of the office on Monday, Nov. 5th and Tuesday, Nov. 6th. I will return to the office on Wednesday, November 7th. Should you need immediate assistance, you may contact Marcia Druga at [hidden email]. |
Automatic reply: define measure
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In reply to this post by Rajeshms
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In reply to this post by Rajeshms
AFAIK when reading data, SPSS automatically assigns levels depending on how many values there are for each variable. I think the settings can be changed, but you can also use: VARIABLE LEVEL <VARLIST1> (NOMINAL) <VARLIST2> (ORDINAL) <VARLIST3 (SCALE) . Others on the list will be better able to advise. John F Hall (Mr) Email: [hidden email] Website: www.surveyresearch.weebly.com From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Rajeshms Dear all, I just want to know why and how the data measure has been defined, as soon as we import any excel data. I ts been defiend ramdomly by itself , on what basis its getting defined as nominal, ordinal, or scale. if we have data defien data properties in the menu, why it cant automaticaly define the measure. because, the problem is to define the measures for huge variables manually ? -- Rajesh M S |
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In reply to this post by Rajeshms
Measurement levels are assigned on the
first data pass according to the heuristic rules you can view in the help
for Edit > Options. You can also use Data > Define Variable
Properties to view recommended levels and assign them. These are
only heuristics, of course, since your judgment about the appropriate levels
is important.
You can, of course, use the VARIABLE LEVEL command to assign levels in bulk. Jon Peck (no "h") aka Kim Senior Software Engineer, IBM [hidden email] new phone: 720-342-5621 From: Rajeshms <[hidden email]> To: [hidden email], Date: 11/26/2012 05:06 AM Subject: [SPSSX-L] define measure Sent by: "SPSSX(r) Discussion" <[hidden email]> Dear all, I just want to know why and how the data measure has been defined, as soon as we import any excel data. I ts been defiend ramdomly by itself , on what basis its getting defined as nominal, ordinal, or scale. if we have data defien data properties in the menu, why it cant automaticaly define the measure. because, the problem is to define the measures for huge variables manually ? -- Rajesh M S |
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In reply to this post by Rajeshms
Dear Rajesh,
Just a little question: how do YOU know which variable is supposed to have which measurement level? Is there anything in their variable names or values that tells you? In this case, Jon Peck will write a few lines of Python syntax for you that will do the trick very elegantly. Second, are you sure you really need to specify the "correct level" (which is often open to discussion but let's not go into that now) for your variables? I believe -but please correct me if I'm wrong- that only few procedures require certain variable levels. Perhaps all you'd like to do will run just fine if you skip this step completely. Third, you are aware that you can specify a measurement level for a range (or all) of variables which are adjacent in your data in one go, right? For instance, please try something like: variable level v1 to v1000 (ordinal). variable level ALL (scale)./*Note that "all" can never be used for a variable name but is a special keyword referring to ALL variables in your active DataSet. HTH, Ruben Date: Mon, 26 Nov 2012 17:33:14 +0530 From: [hidden email] Subject: define measure To: [hidden email] Dear all, I just want to know why and how the data measure has been defined, as soon as we import any excel data. I ts been defiend ramdomly by itself , on what basis its getting defined as nominal, ordinal, or scale.
if we have data defien data properties in the menu, why it cant automaticaly define the measure. because, the problem is to define the measures for huge variables manually ?
Rajesh M S |
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Some procedures rely on defined measurement
level and will yield different results depending on the defined measurement
level. A few procedures will result in errors if a variable isn't a specific
measurement level. Measurement level isn't randomly assigned, but the ordinal
measurement level is never automatically assigned because any rule for
that would probably be wrong half the time.
The rules for determining default measurement level are described here: http://pic.dhe.ibm.com/infocenter/spssstat/v21r0m0/index.jsp Rick Oliver Senior Information Developer IBM Business Analytics (SPSS) E-mail: [hidden email] From: Ruben van den Berg <[hidden email]> To: [hidden email], Date: 11/26/2012 11:32 AM Subject: Re: define measure Sent by: "SPSSX(r) Discussion" <[hidden email]> Dear Rajesh, Just a little question: how do YOU know which variable is supposed to have which measurement level? Is there anything in their variable names or values that tells you? In this case, Jon Peck will write a few lines of Python syntax for you that will do the trick very elegantly. Second, are you sure you really need to specify the "correct level" (which is often open to discussion but let's not go into that now) for your variables? I believe -but please correct me if I'm wrong- that only few procedures require certain variable levels. Perhaps all you'd like to do will run just fine if you skip this step completely. Third, you are aware that you can specify a measurement level for a range (or all) of variables which are adjacent in your data in one go, right? For instance, please try something like: variable level v1 to v1000 (ordinal). variable level ALL (scale)./*Note that "all" can never be used for a variable name but is a special keyword referring to ALL variables in your active DataSet. HTH, Ruben Date: Mon, 26 Nov 2012 17:33:14 +0530 From: [hidden email] Subject: define measure To: [hidden email] Dear all, I just want to know why and how the data measure has been defined, as soon as we import any excel data. I ts been defiend ramdomly by itself , on what basis its getting defined as nominal, ordinal, or scale. if we have data defien data properties in the menu, why it cant automaticaly define the measure. because, the problem is to define the measures for huge variables manually ? -- Rajesh M S |
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