Hi

I have a problem with linear regression. This is my codes:

acc1<- lm(data$acc ~ dummy + data$Reqloanamount + data$Code + data$Code.1 +
data$EmpNetMonthlyPay + data$Customer_Age + data$RTI)
summary(acc1)

These attributes are all numerical except the "acc"(factors), so how can I
fix the problem R showed me? can anyone please help me out? Many thanks!

But the R shows:

Residuals:Error in quantile.default(resid) : factors are not allowedIn
addition: Warning message:In Ops.factor(r, 2) : ^ not meaningful for
factors

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