I am trying to plot the residuals from a linear model and I get the following
error message: Error in xy.coords(x, y, xlabel, ylabel, log) : 'x' and 'y'
lengths differ. The outcome is a continuous variable and the explanatory
variable is ordinal. My immediate suspicion was that it had something to do
with missing values. Each variable has missing values coded as NA. I can't
figure it out. Please help. Thanks.
> obama.mod = lm(ft_dpc_r~pid_x)
> summary(obama.mod)
Call:
lm(formula = ft_dpc_r ~ pid_x)
Residuals:
Min 1Q Median 3Q Max
-89.271 -14.783 0.729 10.729 84.193
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 101.5155 0.5797 175.12 <2e-16 ***
pid_x -12.2441 0.1411 -86.76 <2e-16 ***
---
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
Residual standard error: 22.85 on 5876 degrees of freedom
(36 observations deleted due to missingness)
Multiple R-squared: 0.5616, Adjusted R-squared: 0.5615
F-statistic: 7528 on 1 and 5876 DF, p-value: < 2.2e-16
> plot(pid_x, resid(obama.mod), ylab = "Model Residuals")
Error in xy.coords(x, y, xlabel, ylabel, log) :
'x' and 'y' lengths differ
Jason Gainous, Ph.D.
Associate Professor
Department of Political Science
University of Louisville
203 Ford Hall
Louisville, KY 40292
(502) 852-1660
Homepage: https://louisville.academia.edu/JasonGainous
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