Hello R Experts,
In further subsetting data within a logistic regression in the survey package,
I am getting a qr.default error.
Below is an example of the original model that runs correctly, but when I
subset the data further to look at students of a particular curriculum
concentration, the qr.default error occurs. I thought it may have been related
to converting the F1RTRCC variable into a factor for use in the original model;
I went back and restored that variable to its original form and it didn't help.
Any guidance is greatly appreciated.
library(RCurl)
library(survey)
data <-
getURL("https://raw.githubusercontent.com/cbenjamin1821/careertech-ed/master/elsq1adj.csv";)
elsq1ch <- read.csv(text = data)
#Specifying the svyrepdesign object which applies the BRR weights
elsq1ch_brr<-svrepdesign(variables = elsq1ch[,1:16], repweights =
elsq1ch[,18:217], weights = elsq1ch[,17], combined.weights = TRUE, type = "BRR")
elsq1ch_brr
##Resetting baseline levels for predictors
elsq1ch_brr <- update( elsq1ch_brr , F1HIMATH = relevel(F1HIMATH,"PreAlg or
Less") )
elsq1ch_brr <- update( elsq1ch_brr , BYINCOME = relevel(BYINCOME,"0-25K") )
elsq1ch_brr <- update( elsq1ch_brr , F1RACE = relevel(F1RACE,"White") )
elsq1ch_brr <- update( elsq1ch_brr , F1SEX = relevel(F1SEX,"Male") )
elsq1ch_brr <- update( elsq1ch_brr , F1RTRCC = relevel(F1RTRCC,"Academic") )
#Log. Reg. model-all curric. concentrations including F1RTRCC as a predictor
allCC <-
svyglm(formula=F3ATTAINB~F1PARED+BYINCOME+F1RACE+F1SEX+F1RGPP2+F1HIMATH+F1RTRCC,family="binomial",design=elsq1ch_brr,subset=BYSCTRL==1&G10COHRT==1,na.action=na.omit)
summary(allCC)
##CTE Log. Reg. model that is resulting in the qr.default error
CTE <-
svyglm(formula=F3ATTAINB~F1PARED+BYINCOME+F1RACE+F1SEX+F1RGPP2+F1HIMATH,family="binomial",design=elsq1ch_brr,subset=BYSCTRL==1&G10COHRT==1&F1RTRCC=="Academic",na.action=na.omit)
summary(CTE)
Courtney Benjamin
Broome-Tioga BOCES
Automotive Technology II Teacher
Located at Gault Toyota
Doctoral Candidate-Educational Theory & Practice
State University of New York at Binghamton
[email protected]<mailto:[email protected]>
607-763-8633
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