search for: qc1

...Off(conc, Asym, lrc, c0), data = CO2, start = c(Asym = 30, lrc = -4.5, c0 = 52)) > summary(fm1)$para[,,1] Estimate Std. Error t value Pr(>|t|) Qn1 38.13977 0.9911148 38.48169 1.991990e-06 Qn2 42.87169 1.0932089 39.21638 2.583953e-06 Qn3 44.22800 1.0241029 43.18706 1.809264e-07 Qc1 36.42874 1.1941594 30.50576 1.140085e-05 Qc3 40.68373 1.2480923 32.59673 1.424635e-04 Qc2 39.81950 1.0167249 39.16447 2.692304e-06 Mn3 28.48286 1.0624246 26.80930 1.066434e-06 Mn2 32.12827 1.0174826 31.57624 3.488786e-06 Mn1 34.08482 1.3400596 25.43530 4.199333e-06 Mc2 13.55519 1.0506404 12....

Hi, I'm very new to R and absolutely love it. Does anyone know how to use something in R that functions like a BY command in SAS? For example, let's say you have a variable x, and you want to see the mean. Easy... > mean(x) But what if you want to see the mean of x conditional on another discrete variable? My best attempts so far are something like... > mean(x, y_cat=1)

...RN43H2RM#`>&@:%!=D9E\)EQ4:(C<''*H&G!)Y:9X.>IZLHD*D9E M,^5/-`VA::2B"W61AU&*OL=9?N4#8S$W,6#@$"Y8DNF045Z!PBL;&(X^N:78 M:QD>QEK(/4*EY$(5\@B38[730(\+L_BN"%+F,=J%**0*UY#J*X6=#8V=@SP, MZZI''1&[6FXJKKX^,\E,CO?N(U;!%''!IOSGXU-8ZG_G0ZAPM(#QC1#F7"](/1 MX-M44K3&U"@T65<#?LLX#.Y10<,2>&>I4O,"8T1B8*;+9BZ-XD,GRWA?]`SY M!8-ZRVZM;A9P*Y7BQF=65WLID48N[L:XVK4QS"QNIDX7C>7W23\Z45944445 M551111555%%%%5544445551111555%%%%5544445551111555%%%%554T4]$ *_P*/#@->`%```%54 ` end

...;3P`#P`#S[/V5B["H9T08DE+2AI6H&F.(4+^]<3 M.6BD<T.L9?1*4QLGH*DQAT)+@0?@`7@P1$V=+E>UI.6J32O0%)H:UP\D<M#[ M(" '$?XA`\ #\ `\P/4#( ]$6K]$FA=1*X@T!&5,SN !> `>0*2!/!!I/1-I M1J*PBJ",R1D\``_ `X@TD <BK7<BS:NUO<885PC*F)S!`_ `/.B2!\O)FY/) MP=MEN9A-WI3?U&]QC1/OCL9/[Q]_=_CH\=/#_985NZZ!2\\`M*0S`)M6:S#7 M_W:_>',Z.UU>+"87\\4OLV4]?1;SZ;+^EQ;F(*-:?4KC4Y#;_]\)R)B%H6ZA M;KGJ-@BG(M0M9C.H&O `/ `/8$&"/,,2:5D<RWI1K:/*MZ>%5GO[6UYDA*W% MX\6B7+;M1=-?7\O]3T!(?^?=V[XDM6W/MEU]XK9]0[]/?.3=WGFWMO5G>+F8 MOSU?MJC]_.O^QK:W\GEOL>?.3XN]K2...