search for: yileds

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2008 Aug 20
2
Quantile regression with complex survey data
Dear there, I am working on the NHANES survey data, and want to apply quantile regression on these complex survey data. Does anyone know how to do this? Thank you in advance, Yiling Cheng Yiling J. Cheng MD, PhD Epidemiologist CoCHP, Division of Diabetes Translation Centers for Disease Control and Prevention 4770 Buford Highway, N.E. Mailstop K-10 Atlanta, GA 30341 [[alternative HTML
2002 Feb 04
2
maximal dataset size
Hi, there, I am using PC window version R and dealing with big dataset usually. May anyone let me whether the maximal dataset size in R is limited by computer memory or hard drive capacity? Thanks in advance. Yiling Cheng, M.D., Ph.D. Project Manager The Cooper Institute for Aerobics Research 12330 Preston Road, Dallas, Texas 75230 phone: (972) 3413248; Fax: (972) 3413224
2002 Jan 30
2
question from a beginner
Dear there, R is pretty flexible and powerful. I wonder whether there are any GUI programs to do basic statistic work by just clicking menu and selecting procedure. Thank you for your time. Yiling -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info",
2005 Apr 30
3
How to extract function arguments literally
...ot;lcommand": (defun lcommand (str) (eval (with-input-from-string (s str) (read s)))) If the argument cmd is a string (i.e. with quotation marks) or has no space, it works fine. > as.character(substitute(abc)) [1] "abc" But, if it has no quotation marks or contains spaces, it yileds an error. > as.character(substitute((def x1 x2)) Error: syntax error He wants to use the syntax like lc((def x1 x2)), not like lc("(def x1 x2)"). Thanks in advance. ============================================================== Shigeru MASE <mase at is.titech.ac.jp>...
2002 Feb 01
4
ROC curves using R
I did some serach around. It seems that ROC curve computation is not supported on R. Anyone has some leads? Thanks. Jason ===== Jason G. Liao, Ph.D. Division of Biometrics UMDNJ School of Public Health 335 George Street, Suite 2200 New Brunswick, NJ 08903-2688 phone (732) 235-9748, fax (732) 235-9777 http://www.geocities.com/jg_liao __________________________________________________ Great