error message in endseq

Hi there,
I am new to R and feel so bloody stupid. Abut in spite of a search of
several hrs I could not find an answer to my problem.

I have imported SPSS data to R, and apart from some warnings regarding
duplicate labels, everything looks fine and names lists all my variables.

Then I try to run a seqdef command - and get the error message below:

fam.seq<- seqdef(family_seq, var= c ("fseq2_15", "fseq2_16",

"fseq2_17","fseq2_18"," fseq2_19","fseq2_20","fseq2_21",

+ "fseq2_22", "fseq2_23","fseq2_24", "fseq2_25",
"fseq2_26","fseq2_27","fseq2_28", "fseq2_29","fseq2_30", "fseq2_31",
"fseq2_32","fseq2_33",
+ "fseq2_34", "fseq2_35","fseq2_36", "fseq2_37",
"fseq2_38","fseq2_39","fseq2_40", "fseq2_41","fseq2_42", "fseq2_43",
"fseq2_44","fseq2_45",
+ "fseq2_46", "fseq2_47","fseq2_48", "fseq2_49", "fseq2_50"),
+ alphabet =c("1","2","3","4","5","6","7","8"),labels=c("not left-never
married-no children","not left -never married - at least 1 child","not left
-has married-no children" , "not left - has married -  at least 1
child","left - never married- no children" , "left - never married - at
least 1 child","left - has married - no children" , "left - has married - at
least 1 child"))
Error in subset.default(data, , var) : element 1 is empty;
    the part of the args list of 'is.logical' being evaluated was:
    (subset)


I understand that the problem seems to be with the list of variables I use
to define what my sequences are.
I tried changing lots of things but nothing helped.
Have I skipped an important step?

Many thanks for your help (I have to sleep now).

nomis

Hallo Uwe,

family_seq is the object I defined when I read my SPSS data:

family_seq<- read.spss (file="C:\\Documents\\blabla\\fam_seq.sav", use.value.labels=TRUE)

I have the impression (which does'nt help) that something doesn't go right
with importing the data. As I said, all my variables (including the ones listed in the seqdef command) are listed when I use the names command.

Thanks for any further ideas.
nomis



-------- Original-Nachricht --------

On 15.02.2010 02:29, nomis24 wrote:

Hi there,
I am new to R and feel so bloody stupid. Abut in spite of a search of
several hrs I could not find an answer to my problem.

I have imported SPSS data to R, and apart from some warnings regarding
duplicate labels, everything looks fine and names lists all my

variables.

Then I try to run a seqdef command - and get the error message below:

fam.seq<- seqdef(family_seq, var= c ("fseq2_15", "fseq2_16",

What is family_seq?

Uwe Ligges

"fseq2_17","fseq2_18"," fseq2_19","fseq2_20","fseq2_21",

+ "fseq2_22", "fseq2_23","fseq2_24", "fseq2_25",
"fseq2_26","fseq2_27","fseq2_28", "fseq2_29","fseq2_30", "fseq2_31",
"fseq2_32","fseq2_33",
+ "fseq2_34", "fseq2_35","fseq2_36", "fseq2_37",
"fseq2_38","fseq2_39","fseq2_40", "fseq2_41","fseq2_42", "fseq2_43",
"fseq2_44","fseq2_45",
+ "fseq2_46", "fseq2_47","fseq2_48", "fseq2_49", "fseq2_50"),
+ alphabet =c("1","2","3","4","5","6","7","8"),labels=c("not left-never
married-no children","not left -never married - at least 1 child","not

left

-has married-no children" , "not left - has married -  at least 1
child","left - never married- no children" , "left - never married - at
least 1 child","left - has married - no children" , "left - has married

- at

least 1 child"))
Error in subset.default(data, , var) : element 1 is empty;
     the part of the args list of 'is.logical' being evaluated was:
     (subset)


I understand that the problem seems to be with the list of variables I

use

to define what my sequences are.
I tried changing lots of things but nothing helped.
Have I skipped an important step?

Many thanks for your help (I have to sleep now).

nomis