Pr 3: data - gov1000-list

Alison Elizabeth Post

27 Oct 27 Oct

5:16 p.m.

Hi Becky, The data is from the car library. So you'll want to type: library(car) data(Anscombe) #note capital letter Apparently there is another dataset that begins with a lower case "a". Alison On Wed, 27 Oct 2004, Rebecca Marie Nelson wrote:

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Hi, I'm sure I'm missing basic here, but how do I get for Anscombe data into R (for problem 3)? If i just do data(anscombe), I get data that looks *nothing* like Table 5.1. It doesn't say what library to load and I don't see the data read for download on the website. Any ideas? Thanks, Becky _______________________________________________ gov1000-list mailing list gov1000-list(a)lists.fas.harvard.edu http://lists.fas.harvard.edu/mailman/listinfo/gov1000-list

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Jonathan Harris

1:07 p.m.

Nevermind...figured it out.... On Oct 28, 2004, at 1:05 PM, Jonathan Harris wrote:

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library(car)

Error in library(car) : There is no package called 'car'

data(Anscombe) #note capital letter

Warning message: Data set 'Anscombe' not found in: data(Anscombe) any clues why this might be happening? andy On Oct 27, 2004, at 5:16 PM, Alison Elizabeth Post wrote:

Hi Becky, The data is from the car library. So you'll want to type: library(car) data(Anscombe) #note capital letter Apparently there is another dataset that begins with a lower case "a". Alison On Wed, 27 Oct 2004, Rebecca Marie Nelson wrote:

Hi, I'm sure I'm missing basic here, but how do I get for Anscombe data into R (for problem 3)? If i just do data(anscombe), I get data that looks *nothing* like Table 5.1. It doesn't say what library to load and I don't see the data read for download on the website. Any ideas? Thanks, Becky _______________________________________________ gov1000-list mailing list gov1000-list(a)lists.fas.harvard.edu http://lists.fas.harvard.edu/mailman/listinfo/gov1000-list

_______________________________________________ gov1000-list mailing list gov1000-list(a)lists.fas.harvard.edu http://lists.fas.harvard.edu/mailman/listinfo/gov1000-list

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Sheldon Marshall Bond

1 Nov 1 Nov

3:25 p.m.

New subject: Problem 4

Greetings, I think you want to simply graph some points with a lot of variance to show how it helps to understand the relationship between both variables. (create two vectors) For the problem with the variance of B, I simply drew a graph with points that had the same x value, differing y values (the equivalent of a line), and tried to draw a line through them. This demonstrates quite nicely that you can't know the slope of a regression line based on these points because you don't have two points to calculate a slope with. Regards, Sheldon On Thu, 28 Oct 2004, Matthew Walter Landauer wrote:

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Hi, Masha and I were wondering if anyone knows what we are trying to graph in problem 4 (and I guess problem 5 too, although I am not there yet). I have a good intuitive understanding of the relationship between V(A) and large absolute values of the mean of the x's. Should I now somehow try to graph V(A) against that mean, or something else? happily perplexed, matt _______________________________________________ gov1000-list mailing list gov1000-list(a)lists.fas.harvard.edu http://lists.fas.harvard.edu/mailman/listinfo/gov1000-list

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