Hi,

I'm getting an error message:

Error in df[, 1:4] * df[, 5] : non-numeric argument to binary operator
In addition: Warning message:
Incompatible methods ("Ops.data.frame", "Ops.factor") for "*" 

here is my code:


##reading in the file
happyguys<-read.table("c:/test4.dat", header=TRUE, row.names=1)

##subset the file based on Select If

test<-subset(happyguys, PROV==48 & GRADE == 7  & Y_Q10A < 9)

##sorting the file

mydata<-test
mydataSorted<-mydata[ order(mydata$Y_Q10A), ]
print(mydataSorted)


##assigning  a different name to file

happyguys<-mydataSorted


##trying to weight my data

data.frame<-happyguys
df<-data.frame
df1<-df[, 1:4] * df[, 5]

##getting error message here??

Error in df[, 1:4] * df[, 5] : non-numeric argument to binary operator
In addition: Warning message:
Incompatible methods ("Ops.data.frame", "Ops.factor") for "*" 

Does anyone know what this error message means?

I've been reviewing R code all day & getting more familiar with it

Thanks,

Nat


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