Gov2001 April 2003

gov2001@lists.gking.harvard.edu

22 participants
48 discussions

[gov2001-l] assignment 7 part b

by lee57＠fas.harvard.edu

How would we do first differences for part b? So we have two scenarios, and the probabilities of 1, 2, 3 would change from scenario 1 to scenario 2. How do we capture these differences in a ternary diagram? So would we have a matrix of three columns, first column being the difference of probability of 1 for scenario 1 and 2, second column being the difference of probability of 2 for scenario 1 and 2, etc.? I guess my question is what exactly do we do for part b? Thanks, Chester

21 years

[gov2001-l] re: mvrnorm

by yryu＠fas.harvard.edu

I tried to use the function "mvrnorm", and R returns that it could not find that function. Any idea what I should do to get it? yongwook ----------------------------- Yongwook Ryu PhD Student Department of Government Harvard University Tel:617-493-3397 Email: yryu(a)fas.harvard.edu -----------------------------

21 years

[gov2001-l] Event Count Models

by dhopkins＠fas.harvard.edu

Dear All, Quick question: in the data we are working with, people were asked how many public meetings they had attended in the last year. The range of answers is from 0 to 60, but the distribution across those values is spiked at the even numbers (i.e. 612 people say 10 meetings and 634 say 12 meetings, while only 8 say 11 meetings, and 8 say 13 meetings). We were hoping to use the generalized event count model, but were curious if that was a good choice given the data and what seems to be its alternating pattern of overdispersion and underdispersion. Best, Colin and Dan -- PhD Candidate in Government Proctor Harvard University (617) 493-8402

21 years

[gov2001-l] asst 7

by mjang＠fas.harvard.edu

In part (a), are we supposed to multiply the 2nd and 3rd catogories and make that the dependent variable? thanks! ~mee-jung

21 years

[gov2001-l] Creating New Variables in R

by dhopkins＠fas.harvard.edu

Dear All, Quick query: let's say I have a discrete, ordered variable (VAR) that takes on values 1, 2, 3, or 4. I want to use R to create a dummy variable for those observations that take on value 2. Up until now, I have been subsetting the dataset into two pieces, defined by VAR==2 and ! VAR==2, then creating a new variable (DATA$NEWVAR <- 1 for the first subset, DATA$NEWVAR <- 0 for the second), and then putting the new datasets back together. There must be a more efficient way to do this, and I was curious if anyone had any hints as to what it was. Thanks a lot! Best, Dan -- PhD Candidate in Government Proctor Harvard University (617) 493-8402

21 years

[gov2001-l] Imputation

by lee57＠fas.harvard.edu

Hello, I'm trying to impute some missing data in my dataset, but it's not going too well. There are two programs that can do imputation: Gary's program and Schafer's program. Gary's program When I download Amelia, I get an icon my desktop. I click on it and many more icons show up on the desktop. I don't know what file runs the program. I clicked another Amelia icon, a window pops and immediately disappears. I think Dan had sort of similar problem, but I can't even run the program. HELP!!! Schafer's program I downloaded Schafer's Splus libraries on Science Center computers, but I can't put them in Library folder because of user restriction. I have Splus 2000, but Schafer's libraries are for Splus 4 and they are not compatible. Kosuke speculates that there is a way to put libraries in a local directory and make Splus recognize it. Any suggestions? Thanks, Chester

21 years

[gov2001-l] Amelia

by Beau_Kilmer＠ksgphd.harvard.edu

This is a multi-part message in MIME format. ------=_NextPart_000_001B_01C2FEF7.CAD8D3A0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii" Every time I hit return after entering the Input file, the program closes. Has anyone else run into this? Thanks. Beau Kilmer Pre-doctoral Candidate John F. Kennedy School of Government PhD Mailboxes 79 JFK Street Cambridge, MA 02138 ------=_NextPart_000_001B_01C2FEF7.CAD8D3A0 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" <html> <head> <META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Dus-ascii"> <meta name=3DGenerator content=3D"Microsoft Word 10 (filtered)"> <style>  </style> </head> <body lang=3DEN-US link=3Dblue vlink=3Dpurple> <div class=3DSection1> Every time I hit return after entering the Input = file, the program closes.  Has anyone else run into this?  = Thanks.     Beau Kilmer Pre-doctoral Candidate John F. Kennedy School of Government PhD Mailboxes 79 JFK Street Cambridge, MA  02138   </div> </body> </html> ------=_NextPart_000_001B_01C2FEF7.CAD8D3A0--

21 years

[gov2001-l] Ice Server Troubles

by dhopkins＠fas.harvard.edu

Dear All, Quick question: when I log onto ICE4, I get the following message: Last login: Wed Apr 9 18:46:56 2003 from net-39733.fas.harvard.edu Could not chdir to home directory /home/d/h/dhopkins: No such file or directory > Colin gets the same result, although we are both on the ICE4 server. I was curious 1) if others had this problem and 2) what I might do to fix it. I am still able to access ICE3, although that's not where my VNC session is. Many thanks, as always. Best, Dan -- PhD Candidate in Government Proctor Harvard University (617) 493-8402

21 years

[gov2001-l] no section tomorrow

by kimai＠fas.harvard.edu

This is a reminder that there is no section tomorrow. Since we had a replication/comment assignment this week, Hw7 is due April 16. I'm around this week, so if you want to stop by to talk about the paper project, send me an e-mail. Kosuke

21 years

[gov2001-l] Scheduled Unix Systems Maintenance (04/10/03 (fwd)

by kimai＠fas.harvard.edu

FYI. Kosuke ---------------------------- On Thursday, April 10th, 2003, from 6:00 AM to 7:00 AM, we will be performing systems maintenance on the central FAS UNIX systems. This maintenance may result in brief interruptions to all UNIX services, including: Login access IMAP/POP/Webmail email access Mail Delivery Web and Portal services DNS service During this period, users should expect to lose any login sessions or active processes they have on FAS and ICE servers. We regret any inconvenience this may cause. -- UNIX Systems Group FAS Computer Services Harvard University

21 years

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Gov2001 April 2003