R help - Jul 2018 - R is creating a new level which is emty after importing a SAS file

Hi,

I have imported some sasdata into R using the sas7bdat package. I have some
nominal variables with some missing values.

R is creating a new level which is emty ??.When I ask for tabulate this new
level is presented with 0 as a frequency.

I want to get rid of this level and have my file imported correctly.

Do you have some hint to help solve this problem?


Please use this email adress to answer this query.


 Best,

Adam


Envoy? ? partir de Outlook<http://aka.ms/weboutlook>

	[[alternative HTML version deleted]]

It is not obvious that this is an error. If your nominal variable in SAS has a
level which is not present in data, then R might just be making a faithful
translation. There is a distinction between (a) having a gender variable with
two levels of which 0 females and (b) pretending that male is the only possible
gender.

Anyways, droplevels() is your friend. (Notice that it easier to remove levels
that you do not want than to insert levels that have been unwantedly deleted on
input.)

-pd
> On 4 Jul 2018, at 19:16 , Adam Z. Jabir <Adam.Z.Jabir at outlook.fr>
wrote:
> 
> Hi,
> 
> I have imported some sasdata into R using the sas7bdat package. I have some
nominal variables with some missing values.
> 
> R is creating a new level which is emty ?.When I ask for tabulate this new
level is presented with 0 as a frequency.
> 
> I want to get rid of this level and have my file imported correctly.
> 
> Do you have some hint to help solve this problem?
> 
> 
> Please use this email adress to answer this query.
> 
> 
> Best,
> 
> Adam
> 
> 
> Envoy? ? partir de Outlook<http://aka.ms/weboutlook>
> 
> 	[[alternative HTML version deleted]]
> 
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-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
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Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com