search for: 3e5

Dear all, I have a big problem: - I got two matrices, A and B - A shows identifies the value of B, however the values of B must be summed - For instance, 1 1 2 2 2 2 1 1 gives matrix a 3 4 2 1 1 1 2 2 gives matrix b Now the result for the value 1 would be 7 4 which are the rowsums of the values of matrix B given that matrix A has the value 1. How can I do this automatically? I

Dear all, I think this is an easy task, but I don't know how to do it. Specifically, I have 69 columns with 300.000 rows. In each cell there is a code like "2E3", "4RR", etc. I now have a list that replaces this with values, e.g., old new 2E3 5 4RR 3 etc. The list ist about 1600 rows long, so also to extensive for normal solutions Do you how to do that? It would

...Can someone think of a better way of doing this? Thanks Alison ****************************************** Alison S. Waller M.A.Sc. Doctoral Candidate awaller@chem-eng.utoronto.ca 416-978-4222 (lab) Department of Chemical Engineering Wallberg Building 200 College st. Toronto, ON M5S 3E5 [[alternative HTML version deleted]]

...008a0 <3d6> DW_AT_high_pc : 0xe5 <3de> DW_AT_frame_base : 1 byte block: 9c (DW_OP_call_frame_cfa) <3e0> DW_AT_GNU_all_call_sites: 1 <3e0> DW_AT_sibling : <0x58b> <2><3e4>: Abbrev Number: 22 (DW_TAG_formal_parameter) <3e5> DW_AT_name : (indirect string, offset: 0x138): argc <3e9> DW_AT_decl_file : 1 <3ea> DW_AT_decl_line : 16 <3eb> DW_AT_type : <0x3f> <3ef> DW_AT_location : 0x6f (location list) <2><3f3>: Abbrev Number: 22...

...Our Responsibility. (https://bugzilla.samba.org/) --Enjoy The Samba Team -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGL0S0IR7qMdg1EfYRApycAKD0BIZouRGqC6r3gJ/QF9d5yEznygCaAwj8 21S7NWuA4HVHslUzE4Zr/Kk= =3e5/ -----END PGP SIGNATURE-----

hey guys, I am working on a function to make a duplicated value unique. For example, the original vector would be like : a = c(2,1,1,3,3,3,4) I'll like to transform it into: a.nodup = 2, 1.01, 1.02, 3.01, 3.02, 3.03, 4 basically, find the duplicates and assign a unique value by adding a small amount and keep it in order. I come up with the following codes, but it runs slow if t is large. Is

I have a data frame with 1 factor, one date, and 37 numeric values: str(waterchem) 'data.frame': 3525 obs. of 39 variables: site : Factor w/ 64 levels "D-1","D-2","D-3",..: 1 1 1 1 1 ... $ sampdate : Date, format: "2007-12-12" "2008-03-15" ... $ CO3 : num 1 1 6.7 1 1 1 1 1 1 1 ... $ HCO3 : num 231 228 118 246

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Hi, I''ve got a newbie question--sorry if this is covered elsewhere, I parsed through the archives for awhile and didn''t see it. I''d like to listen for whenever a file is renamed (e.g. foo.txt -> foo.old) and then magically change it back. This sounds odd, but I''m working with a stubborn application and this will actually make things work nice. So, if I do:

...Message-ID: <001301c9b14b$a2e99390$3a0b2c0a@gne.windows.gene.com> Content-Type: text/plain;    charset="US-ASCII" Serves me right, I suppose. Timing seems also very dependent on the dimensions of the matrix. Here's what I got with my inadequate test: > x <- matrix(rnorm(3e5),ncol=3) ## via apply > system.time(apply(x,1,max))    user  system elapsed    2.09    0.02    2.10 ## via pmax > system.time(do.call(pmax,data.frame(x)))    user  system elapsed    0.10    0.02    0.11 > Draw your own conclusions! Cheers, Bert Bert Gunter Genentech Nonclinical Bio...