Last data update: 2014.03.03
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R: Table of Percentages with Percentage Base
Table of Percentages with Percentage Base
Description
percent returns a table of percentages along with
the percentage base. It will be useful
in conjunction with Aggregate or genTable .
Usage
percent(x,...)
## Default S3 method:
percent(x,weights=NULL,total=!(se || ci),
se=FALSE,ci=FALSE,ci.level=.95,
total.name="N",perc.label="Percentage",...)
## S3 method for class 'logical'
percent(x,weights=NULL,total=!(se || ci),
se=FALSE,ci=FALSE,ci.level=.95,
total.name="N",perc.label="Percentage",...)
Arguments
x |
a numeric vector or factor.
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weights |
a optional numeric vector of weights of the same length as x .
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total |
logical; should the total sum of counts from which the percentages are
computed be included into the output?
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se |
logical; should standard errors of the percentages be included?
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ci |
logical; should confidence intervals of the percentages be included?
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ci.level |
numeric; nominal coverage of confidence intervals
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total.name |
character; name given for the total sum of counts
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perc.label |
character; label given for the percentages if the
table has more than one dimensions, e.g. if se or ci is TRUE.
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... |
for percent.mresp : one or several 1-0 vectors or matrices
otherwise, further arguments, currently ignored.
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Value
A table of percentages.
Examples
x <- rnorm(100)
y <- rnorm(100)
z <- rnorm(100)
f <- sample(1:3,100,replace=TRUE)
f <- factor(f,labels=c("a","b","c"))
percent(x>0)
percent(f)
genTable(
cbind(percent(x>0),
percent(y>0),
percent(z>0)) ~ f
)
gt <- genTable(
cbind(percent(x>0,ci=TRUE),
percent(y>0,ci=TRUE),
percent(z>0,ci=TRUE)) ~ f
)
print(gt)
ftable(gt,row.vars=2,col.vars=c(3,1))
ex.data <- expand.grid(mean=c(0,25,50),sd=c(1,10,100))[rep(1:9,rep(250,9)),]
ex.data <- within(ex.data,x <- rnorm(n=nrow(ex.data),mean=ex.data$mean,sd=ex.data$sd))
ex.data <- within(ex.data,x.grp <- cases( x < 0,
x >= 0 & x < 50,
x >= 50 & x < 100,
x >= 100
))
genTable(percent(x.grp)~mean+sd,data=ex.data)
Aggregate(percent(Admit,weight=Freq)~Gender+Dept,data=UCBAdmissions)
Results
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