Gov2001 September 2004

gov2001@lists.gking.harvard.edu

27 participants
47 discussions

[gov2001-l] what to turn in

by olau＠fas.harvard.edu

Hi, I had a question about what I expect when you hand in the problem set on Thursday. You do not need to derive OLS again. You do need to give the equations (as equations) for beta and sigma^2. You should also provide the R code you used, and comment the code extensively so I can see what you did. If you feel that you can show the results better with a plot, you can provide that as well, but it's not expected for this problem set. As usual, the problem set should be typed up, not hand written. Yours, Olivia Lau

19 years, 7 months

[gov2001-l] Co-author for voter behavior

by soroka＠fas.harvard.edu

Hi, Does anyone in 2001 have an interest in studying voter behavior in East Europe or the FSU? I have several potential datasets to use, but rather urgently need a co-author. I would also consider working on a different region if it were of greater interest to someone. If anyone is interested, please let me know. George _________ George Soroka soroka(a)fas.harvard.edu Ph.D. Candidate Government Dept. Harvard University

19 years, 7 months

[gov2001-l] notation

by olau＠fas.harvard.edu

Hi, A few people have questions about the notation on the problem set. As Gary will explain on Monday, Unif(a, b) stands for a Uniform distribution on the interval (a, b) (from a to b). Yours, Olivia

19 years, 7 months

[gov2001-l] problem set 1, #2

by olau＠fas.harvard.edu

There have been a few questions about the set-up for problem 2, which says: X is an (k x n) matrix of x_{ji} entries indexed by j = 1, ..., k and i = 1, ..., n. (I chose this so that ji would correspond to kn -- that is, the row subscript would come first in both the matrix and scalar notation.) A few perceptive individuals noted that the derivation from section relied on X being an n x k matrix. Although it's possible to get the correct answer using the original set up, it is probably easier to use the set up from section and Gary's lecture notes: X is an n x k matrix consisting of x_{ij} entries, where j corresponds to columns 1, ..., k and i corresponds to observations 1, ..., n, which means that x_i1 is 1 for all i and draw x_i2 from the Unif(0,2) You can do the problem either way. Hope this helps. Olivia

19 years, 7 months

[gov2001-l] The first dump questions about _Unifiying Political Methodlogy_.

by fukumoto＠dg8.so-net.ne.jp

Hi, Gov. 2001 members, The first dump questions about _Unifiying Political Methodlogy_. If anybody knows the answers, could you tell us? p. 47 Why is equation (3.9) defined as it is? How can we know it is the same as the integration which appears between (3.8) and (3.9)? Similarly, on p. 52, how do we get equation (3.17) by integartion which is shown four lines above on the page? p. 52, l. -2 What does he mean "without a group"? And as for Zelig manual, p. 24, 1 What's "Amelia"? I can't find it even by google. Thank you in advance. Kentaro

19 years, 7 months

[gov2001-l] wget

by olau＠fas.harvard.edu

Hi, everyone. I know you're all working hard to set up your linux environment on a beautiful Saturday afternoon, so be aware that in the Linux instructions, when you type wget -q 'http://www.hmdc.harvard.edu/GOV_2001/setup.sh' -O- | sh The -O- part is a capital O (as in Olivia), not a zero. I recommend that you look at the documentation online and simply copy and paste the command from the pdf to your terminal. Yours, Olivia.

19 years, 7 months

[gov2001-l] Re: about setting up the environment

by weiha＠fas.harvard.edu

Olivia, I indeed typed "source .cshrc". However, the "xemacs &" doesn't work while "xemacs" works. Again, "Esc-X shift R" doesn't work. I don't see R anywhere on my screen. Wei Quoting Olivia Lau <olau(a)fas.harvard.edu>: > Wei, > > The source .cshrc command wasn't on the last handout, *but* you > get that message after running wget. Thus, perhaps expecting > too much, I thought that people would follow the prompt. I > would recommend that you kill your vnc session and start over > using the new handout. Xemacs won't work unless you run wget > *and* source your .cshrc file. > > Olivia > ----- Original Message ----- > From: "Wei Ha" <weiha(a)fas.harvard.edu> > To: <gov2001-l-bounces(a)lists.fas.harvard.edu> > Sent: Saturday, September 25, 2004 10:43 AM > Subject: about setting up the environment > > > > > > > > Dear Olivia, > > > > I couldn't find the "source .cshrc" on the previous handout. > > However, I was > > still lead to this colorful interface even though I added it > > in. But I indeed > > opened the XEmacs by clicking an icon. The "M-x R" doesn't > > work.I guess I waste > > too much time on this. Do other people have the same problem > > or I am all alone? > > Thanks! > > > > Wei > > > > > > >

19 years, 7 months

[gov2001-l] revised linux documentation

by olau＠fas.harvard.edu

Hi, For those of you who haven't started setting up your linux accounts (or haven't been able to set up your linux account), there is revised documentation on the course website: http://www.courses.fas.harvard.edu/~gov2001/handouts/Linux/Linux.pdf Again, if you have problems setting up your computational environment, you need to see me soon. This *is* a assignment -- if you do not have your computational environment set up by next week, you will either be unable to do the next assignment or it will take you twice as long as eveyrone else who has set up their computational environments correctly. Yours, Olivia.

19 years, 7 months

[gov2001-l] Clarification on linux instructions

by olau＠fas.harvard.edu

Hi, There are a couple things that you should pay attention to when trying to set up your linux account. 1) You *must* run the wget ... command before running vncserver. 2) At the conclusion of wget, there will be a little message telling you to source your .cshrc file. To do this, simply type: % source .cshrc 3) Now type % vncserver Make sure that you keep track of which server you are on. This is ice1, ice2, ice3 or ice4 -- not ice1:24 -- the HMDC tool will remember your session number (the :24 part) for you. 4) If you mess up or want to start over, type % vncserver -kill :X # Where :X is your session number % rm -rf .vnc % mkdir .vnc Now you can start again. Run wget, source the .cshrc file, and run vncserver. 5) When you log in to VNC, if you get a desktop with lots of pretty colors and a little house icon, you've done something wrong and you need to perform step (4). If you get a blank grey desktop, you can scroll down and hopefully you'll have a terminal window somewhere hidden off your screen. If not, perform step (4) and start over. If you still have problems, please come to office hours or see me after class or send me an email with the specific error message. Yours, Olivia

19 years, 7 months

[gov2001-l] R reference (fwd)

by olau＠fas.harvard.edu

---------- Forwarded message ---------- Date: Thu, 23 Sep 2004 19:02:06 -0400 From: Ben Goodrich <goodrich(a)fas.harvard.edu> To: 'Olivia Lau' <olau(a)fas.harvard.edu> Subject: R reference It is not, in fact, Baron from Stanford, but rather Baron from the psych department at Penn, whom I have never heard of aside from this R reference card that he is famous for. http://www.psych.upenn.edu/~baron/refcard.pdf Ben Ben Goodrich Graduate Student at Harvard University Ph.D. Program in Government and Social Policy www.people.fas.harvard.edu/~goodrich/ goodrich(a)fas.harvard.edu

19 years, 7 months

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Gov2001 September 2004