[R] Test for Homoscedesticity in R Without BP Test

Achim Zeileis Achim.Zeileis at uibk.ac.at
Mon Apr 4 21:20:32 CEST 2016

On Mon, 4 Apr 2016, Deepak Singh wrote:

> Respected Sir,
> I am doing a project on multiple linear model fitting and in that project I
> have to test Homoscedesticity of errors I have google for the same and
> found bptest for the same but in R version 3.2.4 bp test is not available.

The function is called bptest() and is implemented in package "lmtest" 
which is available for current versions of R, see

To install it, run:

And then to load the package and try the function:

> So please suggest me a test on homoscedesticity ASAP as we have to submit
> our report on 7-04-2016.
> P.S. : I have plotted residuals against fitted values and it is less or
> more random.
> Thank You !
> 	[[alternative HTML version deleted]]
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