From G.Maubach at gmx.de  Sun Jan  7 08:50:45 2018
From: G.Maubach at gmx.de (G.Maubach at gmx.de)
Date: Sun, 7 Jan 2018 08:50:45 +0100
Subject: [R-marketing-bugs] Errata: Chapter 3, page 54 (Brackets left out)
Message-ID: <trinity-53e0e6ca-326d-4f90-bb3c-e202db6905de-1515311445495@3c-app-gmx-bs67>

Hi Chris,
Hi Elea,

could you correct this please:

Wrong:

p1.table2[, 2] / p1.table2[, 1] + p1.table2[, 2]
    2.19     2.29     2.49     2.79     2.99 
41.11582 46.11558 42.11024 47.11869 32.09329 

Correct:

p1.table2[, 2] / ( p1.table2[, 1] + p1.table2[, 2] )
      2.19       2.29       2.49       2.79       2.99 
0.10379747 0.10360360 0.09929078 0.10609481 0.08533333 

Best regards

Georg

From cnchapman at gmail.com  Sun Jan  7 19:47:10 2018
From: cnchapman at gmail.com (Chris Chapman)
Date: Sun, 7 Jan 2018 10:47:10 -0800
Subject: [R-marketing-bugs] Errata: Chapter 3,
	page 54 (Brackets left out)
In-Reply-To: <trinity-53e0e6ca-326d-4f90-bb3c-e202db6905de-1515311445495@3c-app-gmx-bs67>
References: <trinity-53e0e6ca-326d-4f90-bb3c-e202db6905de-1515311445495@3c-app-gmx-bs67>
Message-ID: <CAAHqzZinmk21-JpXkf0WQrQf1gMDRKH29DVJZMtLdVs4ds8EwA@mail.gmail.com>

Thank you for the note.

I cannot find this error. It appears to be correct in both the printed book
and the online code file -- see attached screenshot from the PDF for the
book, as well as the code here
<http://r-marketing.r-forge.r-project.org/code/chapter3-ChapmanFeit.R>.
Could you clarify where you found this mistake?

I hope you're enjoying the book! Cheers and best wishes,

-- Chris

[image: Inline image 1]

On Sat, Jan 6, 2018 at 11:50 PM, <G.Maubach at gmx.de> wrote:

> Hi Chris,
> Hi Elea,
>
> could you correct this please:
>
> Wrong:
>
> p1.table2[, 2] / p1.table2[, 1] + p1.table2[, 2]
>     2.19     2.29     2.49     2.79     2.99
> 41.11582 46.11558 42.11024 47.11869 32.09329
>
> Correct:
>
> p1.table2[, 2] / ( p1.table2[, 1] + p1.table2[, 2] )
>       2.19       2.29       2.49       2.79       2.99
> 0.10379747 0.10360360 0.09929078 0.10609481 0.08533333
>
> Best regards
>
> Georg
> _______________________________________________
> R-marketing-bugs mailing list
> R-marketing-bugs at lists.r-forge.r-project.org
> http://lists.r-forge.r-project.org/cgi-bin/mailman/
> listinfo/r-marketing-bugs
>
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