similar to: sum data from data.frame in a matrix

Hi Dennis, Thanks for your quick response and sorry for not being clear. That helped, but I need an actual matrix of e.g., 12 x 12 and those functions give me a matrix with only the "filled" locations. I need a 12 by 12 matrix with sums (0 if there's not data and the actual sum where there is) as follows: 1 2 3 4 5 6 7 8 9 10 11 12 1 0 0 0 . . . . . . 0 0 0 2 0 0 0 . 3 0

Hello, One more question.. I have the data.frame "pop": xloc yloc gonad ind Ene W Area 1 23 20 516.74 1 0.02 20.21 1 2 23 20 1143.20 1 0.02 20.21 1 3 23 20 250.00 1 0.02 20.21 1 4 22 15 251.98 1 0.02 18.69 2 5 22 15 598.08 1 0.02 18.69 2 6 21 19 250.00 1 0.02 20.21 3 7 22 20 251.98 1

Hi All, I've been doing circles with this all morning, although I'm sure there's a simple solution. I have a data.frame "pop" as follows: > pop ind xloc yloc gonad 1 1 5 2 12 2 1 5 4 25 3 1 3 3 30 4 1 5 4 10 5 1 1 4 08 . . . . . 10 1 1 4 11 And I need the following steps: 1. Sum

Hi! I have 2 data.frames: "fish" and "popn": >fish xloc yloc id birth size weight energy gonad 20 15 15 54 -60 107.9 63.0 15952.9 8.0 21 15 15 32 -60 105.1 61.4 15538.8 7.8 91 4 43 96 -60 118.9 69.4 17573.2 8.8 71 32 4 64 -60 121.6 71.0 17976.0 9.0 34 2 64 20 -60 116.2 67.9 17173.0 8.6 95 6 20 58 -60 106.5

Hello, I'm trying to create a matrix (95x55) with data from a data.frame pop: xloc yloc go ind Ene totW 1 23 20 516 1 0.02 20.21 2 23 20 1143 1 0.02 20.21 3 23 20 250 1 0.02 20.21 4 22 15 251 1 0.02 18.69 5 22 15 598 1 0.02 18.69 6 21 19 250 1 0.02 20.21 7 22 20 251 1

Hi All, I?m trying to superimpose (or "add") two matrices: 1. resulting from a table function with frequencies: > U=table(pop$xloc, pop$yloc)) 14 15 16 17 18 19 20 21 22 5 0 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0 0 0 9 0 0 0 0 0 0 9 0 5 10 0 0 0 0 0 0 0 0 0 11 0 0 0 0 0 0 0 0 0 2.

Hi All, I'm trying to delete a row from my dataframe "pop" without changing the indexing (column 0) as follows: >pop id birth size xloc yloc weight energy gonad consumed 1 1 36 13 34 43 0 18 0 0 2 2 36 10 39 38 0 18 0 0 3 3 36 10 37 35 0 18 0 0 4 4 36 10 31 25 0

Hi All, I have a for loop inside the function and I cannot get UUU to give me an updated grid.dens object when I run the function (it does update when I run just the for loop). Here's a simplified version of my function: UUU=function(pop, grid.dens) { for (i in 1:10){ Food=grid.dens[pop$yloc[i],pop$xloc[i]] #use initial grid.dens values Consumed=(pop$weight[i]*0.25) Left=Food-Consumed

Hi All, Year Area Q Bin FD I have a large dataset I need to re-structure. It looks something like this: 2000 1 1 5 0 2000 1 1 10 1 2000 1 1 15 23 2000 1 1 20 12 2000 1 1 25 1 2000 2 1 5 1 2000 2 1 10 3 2000 2 1 15 15 2000 2 1 20 11 2000 2 1 25 3 2000 1 2 5 0 2000 1 2 10 1 2000 1 2 15 23 2000 1 2 20 12 2000 1 2 25 1 2000 2 2 5 1 2000 2 2 10 3 2000 2 2 15 15 2000 2 2 20 11

Hi All, I have a data.frame: >pop consumed ind recruits gonad cell 1 516.74 1 0.02 20.21 0.25 2 1143.20 1 0.02 20.21 0.50 3 250.00 1 0.02 20.21 0.25 4 251.98 1 0.02 18.69 0.25 5 598.08 1 0.02 18.69 0.25 6 437.38 1 0.02 18.69 0.25 7 250.00 1 0.02 17.39 0.25 8 250.00 1 0.02 17.39 0.25 9

Full_Name: Georgi Boshnakov Version: 2.10.1pat OS: Windows XP Submission from: (NULL) (130.88.123.205) When calling programmatically function curve() from package:graphics I experienced some trouble since it reports stop("'expr' must be a function or an expression containing 'x'") even if expr is "expression". Naturally, the user message uses

I think I found a bug in the Cairo library, plus weird behavior in both the Cairo and the normal pdf device. The baseline of the spades symbol seems to be off. This is easier to show than it is to explain. The problem does not appear in the normal pdf device, which is why I am guessing this is a Cairo bug. moreover, I cannot figure out why three of the card symbols seem to be transparent, but

Hi All, I have a large dataset I need to re-structure. It looks something like this: YearAreaQBinFD20001150200011101200011152320001120122000112512000215120002110 6200021151120002120132000212532000125020001210120001215232000122012200012251 20002251200022103200022151220002220132000222532001…2011 And I need to create different vectors (Bin, FD) summing by year and/or by area; For example, I need

This is an example from chapter 11 of the 6th edition of Devore's engineering statistics text. It happens to be a balanced data set in two factors but the calculations will also work for unbalanced data. I create a factor called 'cell' from the text representation of the Variety level and the Density level using '/' as the separator character. The coefficients for the linear

Hi list, I have data in a dataframe t1, with a column for different amounts spent, a column what it was spent on, and a column with dates, from which I create a new column with months. Example: amount <- rep(c(10,20,30),3) what <- rep(c("food","books","cycling"),3) when <- c(rep("2008-09-05",5),rep("2008-10-07",4)) t1 <-

Hi all, I cannot get xtabs to count NA's like I expect. Below is a sample session, and note that the last two calls to xtabs() yield exactly the same thing. I am running R-2.5.0 -- if there was a bug in xtabs that got fixed, I would love to know about it. If there is a bug tracker somewhere, I can file it too. It isn't my fault that the server is so ridiculously outdated, but I would

Hi, How does one change the dot for the median in a boxplot drawn using lattice? I have been looking at > names(trellis.par.get()) [1] "grid.pars" "fontsize" "background" [4] "panel.background" "clip" "add.line" [7] "add.text" "plot.polygon"

Is the code below showing a bug in Crosstable()? My expectation was that the values produced by xtabs were rounded instead of truncated: library(gmodels) abc <- c("a", "a", "b", "b", "c", "c") def <- c("d", "e", "f", "f", "d", "e") wgt <- c(0.8, 0.6, 0.4, 0.5, 1.4, 1.3)

Hello, I am drawing a boxplot using bwplot in lattice. I would like to learn how to draw a thicker median line instead of the default setting. Thank you. Code bwplot(........, pch=rep("|",2)) Elaine [[alternative HTML version deleted]]

I have upgraded to version 3.0.27a on ubuntu 7.10 server and now the getent command wont display the active directory users, but wbinfo will. It worked fine with 3.0.26a and I have not changed my configuration. I do however have this in my winbind log: [2007/12/04 13:39:01, 0] nsswitch/winbindd.c:request_len_recv(544) request_len_recv: Invalid request size received: 2084 (expected