alters the type of the variable and also changes the length. For example, to change numeric to string or vice versa. You can use this command for single, multiple or ALL variables in your file. Here is the command for all variables.
ALTER TYPE ALL (A=A200).
the above will convert all the numeric to string with 200 character length. But it does not allow you to create a new version of the variable (unlike RECODE OR AUTORECODE).
For a good description of converting variable type see this UCLA page:
http://www.ats.ucla.edu/stat/spss/faq/stringnum.htm
Another good page to look at this is at the following user comment in a google group:
http://groups.google.com/group/comp.soft-sys.stat.spss/browse_thread/thread/0560f3240bb41edc?pli=1
11 comments:
Thanks so much! However, how would I alter the type of not all the variables but a subset, with out having to type
ALTER TYPE VAR1 (A50)
ALTER TYPE VAR2 (A50)
all over again.
DATA LIST FREE
/Numvar1 (F2) Numvar2 (F1)
StringVar1 (A20) StringVar2 (A30)
StringDate1 (A11) StringDate2 (A10) StringDate3 (A10).
BEGIN DATA
1 23 a234 b2345 28-Oct-2007 10/28/2007 10/29/2008
END DATA.
ALTER TYPE Numvar1 (F5.2) Numvar2 (F3).
ALTER TYPE
StringDate1 to StringDate3 (A11 = DATE11).
ALTER TYPE
StringDate1 to StringDate3 (A10 = ADATE10).
ALTER TYPE ALL (A=AMIN).
The above is just taken from the IBM SPSS help.
Because I'm not a statistics monkey and I struggled with a REALLY CLEAR thing that worked (but given that my precious code worked and then didnt, here is an option for you)
---
To make all the missing values 99:
MISSING VALUES All (99).
---
To make all the values Numeric
ALTER TYPE ALL (F3).
(if 'F3' isn't it, change one piece of data manually with all the clickdown menus -- and look at the 'Variables' and look for what is different between your "string" and your manually changed "numeric"
It’s hard to seek out knowledgeable people on this matter, but you sound like you realize what you’re speaking about! Thanks play casino
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alters the type of the variable and also changes the length. For example, to change numeric to string or vice versa. You can use this command for single, multiple or ALL variables in your file. Here is the command for all variables. bar necklace australia , bar necklace chile ,
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