R help - Jun 2015 - Cross tabulation with top one variable and side as multiple variables

Hi:

I have a huge data with lot of variables and I need to check the trend
variations from year to year. In order to do so, I have to cross tabulate
the year variable as top (constant) and all the remaining variables as side
(attached the cross tabulation report). I have searched the forums but the
syntax I could find for cross tabulation is between 2 or 3 variables. So i
would request to provide a code which can print the data in the same way as
in the attached. 
<http://r.789695.n4.nabble.com/file/n4708379/Untitled.png>



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On Jun 9, 2015, at 1:40 AM, jagadishpchary wrote:
> Hi:
> 
> I have a huge data with lot of variables and I need to check the trend
> variations from year to year. In order to do so, I have to cross tabulate
> the year variable as top (constant) and all the remaining variables as side
> (attached the cross tabulation report). I have searched the forums but the
> syntax I could find for cross tabulation is between 2 or 3 variables. So i
> would request to provide a code which can print the data in the same way as
> in the attached. 
<http://r.789695.n4.nabble.com/file/n4708379/Untitled.png>
I think you will find that people on this list expect you to provide data in the
form of text rather than pictures. When I looked at the request there were two
routes I considered: 1) combine margin.table with ftable and 2) investigate one
of (but not both) of plyr or dply packages.
> 
> 
> View this message in context:
http://r.789695.n4.nabble.com/Cross-tabulation-with-top-one-variable-and-side-as-multiple-variables-tp4708379.html
> Sent from the R help mailing list archive at Nabble.com.
Nabble is neither the R help mailing list nor its archive.

Nabble also removes this message from replies. You should read the material
about the list.
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
David Winsemius
Alameda, CA, USA

There are two issues here... calculation and presentation. The table function
from base R can work with many variables. If your data set is so large that you
have problems with memory then you could investigate data.table or sqldf
packages, which perform the computations but do not present the data in cross
tabulation form. You could use table or perhaps the tables package to render the
data into the desired form.
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On June 9, 2015 1:40:53 AM PDT, jagadishpchary <p.jagadish at
inrhythm-inc.com> wrote:
>Hi:
>
>I have a huge data with lot of variables and I need to check the trend
>variations from year to year. In order to do so, I have to cross
>tabulate
>the year variable as top (constant) and all the remaining variables as
>side
>(attached the cross tabulation report). I have searched the forums but
>the
>syntax I could find for cross tabulation is between 2 or 3 variables.
>So i
>would request to provide a code which can print the data in the same
>way as
>in the attached. 
><http://r.789695.n4.nabble.com/file/n4708379/Untitled.png> 
>
>
>
>--
>View this message in context:
>http://r.789695.n4.nabble.com/Cross-tabulation-with-top-one-variable-and-side-as-multiple-variables-tp4708379.html
>Sent from the R help mailing list archive at Nabble.com.
>
>______________________________________________
>R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.

We probably should have a better idea of what the raw data looks like and
perhaps a bit better idea of what the analyis is to show.  Have a look at
http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example
and http://adv-r.had.co.nz/Reproducibility.html for some suggestions. In
particular see the discussion about dput() for the best way to provide sample
data to the help list.


John Kane
Kingston ON Canada

> -----Original Message-----
> From: p.jagadish at inrhythm-inc.com
> Sent: Tue, 9 Jun 2015 01:40:53 -0700 (PDT)
> To: r-help at r-project.org
> Subject: [R] Cross tabulation with top one variable and side as multiple
> variables
> 
> Hi:
> 
> I have a huge data with lot of variables and I need to check the trend
> variations from year to year. In order to do so, I have to cross tabulate
> the year variable as top (constant) and all the remaining variables as
> side
> (attached the cross tabulation report). I have searched the forums but
> the
> syntax I could find for cross tabulation is between 2 or 3 variables. So
> i
> would request to provide a code which can print the data in the same way
> as
> in the attached.
> <http://r.789695.n4.nabble.com/file/n4708379/Untitled.png>
> 
> 
> 
> --
> View this message in context:
>
http://r.789695.n4.nabble.com/Cross-tabulation-with-top-one-variable-and-side-as-multiple-variables-tp4708379.html
> Sent from the R help mailing list archive at Nabble.com.
> 
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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I think my explanation in the post is not giving the full details on the job
to be done. Sorry for that. Here is what I am doing..

1.	I have a SPSS data set with more than 2000 variables. However for test
purpose I have created a temporary data set with 5 variables which I am
reading it to R environment (Attached the test.sav file).
2.	There is a variable called ?TREND? which has the year data. So all I need
to do is cross tabulate the variables with this Trend variable. 
In SPSS the syntax would be

CTABLES
/VLABELS VARIABLES =ALL DISPLAY=LABEL
/TABLES (AGET +SEXT +EDUCRT +JOBRT ) [COUNT F40.0] by TREND.

The final cross tabulation results are placed in the attached excel report
with sheet name ?Results?.

As I am new to R  - I tried searching the forums for the cross tabulation
with top variable constant and multiple variables as side however I could
not find it. Anyhow I tried using the below syntax :

Xtabs ( ~ AGET +SEXT +EDUCRT +JOBRT + TREND, data=mydata)
summary(~AGET +SEXT +EDUCRT +JOBRT, data= mydata, fun=table)
ftable (mydata, row.vars=c("AGET ", " SEXT ", " EDUCRT
" , ?JOBRT?),
col.vars="TREND")

the results are not identical to what I am getting in SPSS

Hence I would request to suggest me a R code that helps me in getting the
results as shown in the attached excel report with sheet name ?Results?.
Test.sav <http://r.789695.n4.nabble.com/file/n4708799/Test.sav>  
Cross_tabulation.xlsx
<http://r.789695.n4.nabble.com/file/n4708799/Cross_tabulation.xlsx>  




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Sent from the R help mailing list archive at Nabble.com.

They do not match because xtabs() in R produces a multidimensional array (one
dimension for each variable). Looking at your spreadsheet on nabble, it appears
that SPSS is just creating 4 crosstabulations with TREND against each of the
other variables. That is easily done in R, but for tested code, you need to give
us reproducible data using dput(). I get an error using read.spss() on your
uploaded file. You should also read some of the extensive free documentation
available on R. The ftable() function creates a two dimensional representation
of that 5-dimensional array. But your spreadsheet is just a stack of
two-dimensional tables. You could get there with the margin.table() function,
but unless you really need the 5-dimensional array, you probably want something
more like:

rowvars <- c("AGET", "SEXT", "EDUCRT", 
"JOBRT")
table.lst <- lapply(rowvars, function(x) xtabs(~x+TREND))

That would give you a list containing a crosstabulation table between each of
the variables and TREND. A spreadsheet with 2000 tables seems a bit unwieldy so
you might want to give some thought to what you really want as output.

-------------------------------------
David L Carlson
Department of Anthropology
Texas A&M University
College Station, TX 77840-4352

-----Original Message-----
From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of
jagadishpchary
Sent: Thursday, June 18, 2015 1:46 AM
To: r-help at r-project.org
Subject: Re: [R] Cross tabulation with top one variable and side as multiple
variables

I think my explanation in the post is not giving the full details on the job
to be done. Sorry for that. Here is what I am doing..

1.	I have a SPSS data set with more than 2000 variables. However for test
purpose I have created a temporary data set with 5 variables which I am
reading it to R environment (Attached the test.sav file).
2.	There is a variable called ?TREND? which has the year data. So all I need
to do is cross tabulate the variables with this Trend variable. 
In SPSS the syntax would be

CTABLES
/VLABELS VARIABLES =ALL DISPLAY=LABEL
/TABLES (AGET +SEXT +EDUCRT +JOBRT ) [COUNT F40.0] by TREND.

The final cross tabulation results are placed in the attached excel report
with sheet name ?Results?.

As I am new to R  - I tried searching the forums for the cross tabulation
with top variable constant and multiple variables as side however I could
not find it. Anyhow I tried using the below syntax :

Xtabs ( ~ AGET +SEXT +EDUCRT +JOBRT + TREND, data=mydata)
summary(~AGET +SEXT +EDUCRT +JOBRT, data= mydata, fun=table)
ftable (mydata, row.vars=c("AGET ", " SEXT ", " EDUCRT
" , ?JOBRT?),
col.vars="TREND")

the results are not identical to what I am getting in SPSS

Hence I would request to suggest me a R code that helps me in getting the
results as shown in the attached excel report with sheet name ?Results?.
Test.sav <http://r.789695.n4.nabble.com/file/n4708799/Test.sav>  
Cross_tabulation.xlsx
<http://r.789695.n4.nabble.com/file/n4708799/Cross_tabulation.xlsx>  




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View this message in context:
http://r.789695.n4.nabble.com/Cross-tabulation-with-top-one-variable-and-side-as-multiple-variables-tp4708379p4708799.html
Sent from the R help mailing list archive at Nabble.com.

______________________________________________
R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

I am beginner in R and I want to read a ASCII file to R environment. However,
the ASCII file is a non delimited and the data is not continuous (have some
blank spaces between the variables) so in order to read the data i have used
the below syntax i.e
test <- read.fwf("D:/R_process/ASCII.txt", width = c(10, 4, 1, 4,
9, 9,
1,1,1,1,1,1,1,3,8))

Now i am able to read it but the data read is wrong. Actually my out put
should have only the applicable variables data but not the blank data.
Attached is the ASCII data. Please let me know how should i write the syntax
to read only the applicable data in the file.

Thanks for your help in advance. test.txt
<http://r.789695.n4.nabble.com/file/n4709699/test.txt>  



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View this message in context:
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Sent from the R help mailing list archive at Nabble.com.

Is this what your are expecting?
> test <- read.fwf("test.dat", width = c(10, 4, 1, 4, 9, 
12,26,1,1,1,1,1,1,3,8))
> test
   V1   V2 V3 V4       V5 V6 V7 V8 V9 V10 V11 V12 V13 V14 V15
1  1 2015  1  4 0.766696  1  1  0  0   0   0   0   0   0  10
2  2 2015  1  4 1.458186  1  1  0  0   0   1   0   0   0  20
3  3 2015  1  4 0.185492  1  1  0  0   0   0   0   0   0  15
4  4 2015  1  4 0.961584  1  1  0  0   0   0   0   0   0   3
5  5 2015  1  4 0.650091  2  0  0  0   1   0   0   0   0  NA
6  6 2015  1  4 0.430350  1  1  0  0   0   0   0   0   0  20
7  7 2015  1  4 3.192895  2  1  0  1   1   0   0   0   0   0
8  8 2015  1  4 0.617127  1  1  0  1   0   1   0   0   0  15
9  9 2015  1  4 0.399207  1  1  0  0   0   0   0   0   0  10

Clint

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On Fri, 10 Jul 2015, jagadishpchary wrote:
> I am beginner in R and I want to read a ASCII file to R environment.
However,
> the ASCII file is a non delimited and the data is not continuous (have some
> blank spaces between the variables) so in order to read the data i have
used
> the below syntax i.e
> test <- read.fwf("D:/R_process/ASCII.txt", width = c(10, 4, 1,
4, 9, 9,
> 1,1,1,1,1,1,1,3,8))
>
> Now i am able to read it but the data read is wrong. Actually my out put
> should have only the applicable variables data but not the blank data.
> Attached is the ASCII data. Please let me know how should i write the
syntax
> to read only the applicable data in the file.
>
> Thanks for your help in advance. test.txt
> <http://r.789695.n4.nabble.com/file/n4709699/test.txt>
>
>
>
> --
> View this message in context:
http://r.789695.n4.nabble.com/Cross-tabulation-with-top-one-variable-and-side-as-multiple-variables-tp4708379p4709699.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>