From: A.J. Rossini (rossini@blindglobe.net)
Date: Thu 03 May 2001 - 23:19:31 EST
Message-ID: <87wv7yin8c.fsf@jeeves.blindglobe.net>
"_" is an assignment operator. Use "." or capitalization to construct
variables.
best,
-tony
>>>>> "TB" == Thomas Bruns <Thomas.Bruns@ptb.de> writes:
TB> Hello, For some analysis of a mesh structure I need to prepare
TB> several vectors of indexes of different length. This is done
TB> by the following code sequence (including diagnostic output):
TB> #-------------------------------------------------- MT_ind <-
TB> which(V1.frame[,2] %in% mm[,1]) print("M_ind") str(M_ind)
TB> Q1_ind <- which(V1.frame[,2] %in% mq1) print("Q1_ind")
TB> str(Q1_ind)
TB> Q2_ind <- which(V1.frame[,2] %in% mq2) print("Q2_ind")
TB> str(Q2_ind)
TB> MS_ind <- which(V1.frame[,2] %in% ms) print("MS_ind")
TB> str(MS_ind)
TB> print ("---------------") print("M_ind") str(M_ind)
TB> print("Q1_ind") str(Q1_ind) print("Q2_ind") str(Q2_ind)
TB> print("MS_ind") str(MS_ind)
TB> #-----------------------------------------------------
TB> Although the Index vectors *_ind have different names they get
TB> subsequently overwriten, as you see in the diagnostic output:
TB> [1] "M_ind" int [1:12023] 6952 6953 6954 6957 6958 6959 6962
TB> 6963 6964 6965 ... [1] "Q1_ind" int [1:331] 1 2 3 4 5 6 7 8 9
TB> 10 ... [1] "Q2_ind" int [1:331] 6952 6957 6962 6963 6964 6965
TB> 6966 6967 6968 6969 ... [1] "MS_ind" int [1:3] 15237 15238
TB> 15239 [1] "---------------" [1] "M_ind" int [1:3] 15237 15238
TB> 15239 [1] "Q1_ind" int [1:3] 15237 15238 15239 [1] "Q2_ind"
TB> int [1:3] 15237 15238 15239 [1] "MS_ind" int [1:3] 15237 15238
TB> 15239
TB> Everything is now equal to MS_ind which was asigned last! So,
TB> can anybody tell me what's happened here? Am I working on
TB> memory pointers without knowing??
TB> Tia!
TB> Thomas
TB> -- -------------------------------------------------------
TB> Dr. Thomas Bruns <thomas.bruns@ptb.de>
TB> Physikalisch-Technische Bundesanstalt Braunschweig
TB> Fachlabor: 1.13 Bundesallee 100 Tel: 0531/592 - 1132 D-38116
TB> Braunschweig Fax: 0531/592-69-1132
TB> -------------------------------------------------------
TB> -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
TB> r-help mailing list -- Read
TB> http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info",
TB> "help", or "[un]subscribe" (in the "body", not the subject !)
TB> To: r-help-request@stat.math.ethz.ch
TB> _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
-- A.J. Rossini Rsrch. Asst. Prof. of Biostatistics UW Biostat/Center for AIDS Research rossini@u.washington.edu FHCRC/SCHARP/HIV Vaccine Trials Net rossini@scharp.org -------- (friday is unknown) -------- FHCRC: M--W : 206-667-7025 (fax=4812)|Voicemail is pretty sketchy CFAR: ?? : 206-731-3647 (fax=3694)|Email is far better than phone UW: Th : 206-543-1044 (fax=3286)|Change last 4 digits of phone to FAX -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
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