# [R] svyboxplot - library (survey)

Thu Oct 18 03:04:01 CEST 2012

```Hello,

I understand that svyhist ()  provides density histograms with density values on the y-axis (R code shown below).  Is there a way one can have relative relative frequency histograms with relative freqencies on the y-axis?

Thanks,

###### svyhist - Density Histogram

svyhist (~age_p,
subset (nhis, xspd2=='SPD'), breaks=MyBreaks,
ylim = c(0,0.040),
main= " ",
col="red",
xlab="Age at Interview (SPD Category)"
)
lines (svysmooth(~age_p, bandwidth=5,subset(nhis, xspd2=='SPD')), lwd=2)

________________________________________
From: Anthony Damico [ajdamico at gmail.com]
Sent: Monday, October 01, 2012 10:07 AM
Cc: R help
Subject: Re: [R] svyboxplot - library (survey)

using a slight modification of the example shown in ?svyboxplot

library(survey)

data(api)

# create an example svydesign
dstrat <- svydesign(id = ~1, strata = ~stype, weights = ~pw, data = apistrat,
fpc = ~fpc)

# set the plot window to display 1 plot x 2 plots
par(mfrow=c(1,2))

# generate two example boxplots
svyboxplot(enroll~stype,dstrat,all.outliers=TRUE)
svyboxplot(enroll~1,dstrat)

# done

# alternative: not as nice

# set the plot window to display 2 plots x 1 plot
par(mfrow=c(2,1))

# generate two example boxplots
svyboxplot(enroll~stype,dstrat,all.outliers=TRUE)
svyboxplot(enroll~1,dstrat)

# done

On Mon, Oct 1, 2012 at 9:50 AM, Muhuri, Pradip (SAMHSA/CBHSQ) <Pradip.Muhuri at samhsa.hhs.gov<mailto:Pradip.Muhuri at samhsa.hhs.gov>> wrote:
Hello,

I have used the library (survey) package for boxplots using the following code.

Could anyone please tell me why I am getting only 1  boxplot instead of 2 boxplots (1-SPD,  2-No SPD).

What changes in the following code would be required to get 2 boxplots in the same plot frame?

Thanks,

###################################################
nhis <- svydesign (id=~psu, strat=~stratum, weights=~wt8,
data=tor, nest=TRUE)

svyboxplot (dthage~xspd2, subset (nhis, mortstat==1), col="gray80",
varwidth=TRUE, ylab="Age at Death", xlab="SPD Status: 1-SPD, 2=No SPD")

Statistician
Substance Abuse & Mental Health Services Administration
The Center for Behavioral Health Statistics and Quality
Division of Population Surveys
1 Choke Cherry Road, Room 2-1071
Rockville, MD 20857

Tel: 240-276-1070
Fax: 240-276-1260

The Center for Behavioral Health Statistics and Quality your feedback.  Please click on the following link to complete a brief customer survey:   http://cbhsqsurvey.samhsa.gov

vide commented, minimal, self-contained, reproducible code.
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