Set levels not labels in the factor call. E.g.
factor("School", levels = factorlabels)
On Sun, 8 May 2005, Ajay Narottam Shah wrote:
I'm in this situation:
factorlabels <- c("School", "College", "Beyond")
with data for 8 families:
education.man <- c(1,2,1,2,1,2,1,2) # Note : no "3" values education.wife <- c(1,2,3,1,2,3,1,2) # 1,2,3 are all present.
My goal is to create this table:
School College Beyond Husband 4 4 0 Wife 3 3 2
How do I do this?
I can readily do: education.wife <- factor(education.wife, labels=factorlabels)
But this breaks: education.man <- factor(education.man, labels=factorlabels)
because none of the families have a husband who went beyond college.
I get around this problem in a limited way by: cautiously <- function(x, labels) { factor(x, labels=factorlabels[as.numeric(levels(factor(x)))]) } education.man <- cautiously(education.man, labels=factorlabels)
Now I get:
> table(education.man) School College 4 4 > table(education.wife) School College Beyond 3 3 2
This is a pain because now the two tables are not conformable. How do I get to my end goal, which is the table:
School College Beyond Husband 4 4 0 Wife 3 3 2
In other words, how do I force education.man to have a factor with 3 levels - "School" "College" "Beyond" - even though there is no observation in "Beyond".
-- Ajay Shah Consultant [EMAIL PROTECTED] Department of Economic Affairs http://www.mayin.org/ajayshah Ministry of Finance, New Delhi
______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
-- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595
______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
