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...ions(SweaveHooks=list(fig=function() ps.options(width=1))) library(graphics) pairs(iris) @ but this didn't change the size of the figure. How to make the figures a different size? -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...ring <- "xyz" f <- function(x){1 + sin(cos(x)) + exp(x^2)} How do I manipulate "string" and f() to give the string "1 + sin(cos(xyz)) + exp(xyz^2)" ? -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...My Best Effort: > names(table(a)[table(a)==1]) [1] "ash" "elm" > This doesn't seem particularly elegant to me; there must be a better way! anyone? -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...gt; But this is not the correct sense: to me "NaN" means "not a number" and I want the sense to be "not available". Any advice? -- Robin Hankin Uncertainty Analyst and Neutral Theorist, National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...-38]" (the output is a single line). In a big run, the string may contain 10^5 or possibly 10^6 numbers. What's the recommended way to convert this to a numeric vector? -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...<- rownames(a)[wanted] return(out) } } [note the transpose and as.matrix()]. There must be a better way! Anyone got any better ideas? What is the R rationale for treating a[1,] so differently from a[1:2,] ? -- Robin Hankin Uncertainty Analyst Southampton Oceanography Centre SO14 3ZH tel +44(0)23-8059-7743 initialDOTsurname at soc.soton.ac.uk (edit in obvious way; spam precaution)

...functions (such as elliptic functions)? [ the idea is to depict a complex function f(z) using a filled.contour() variant in which the hue is given by Arg(f(z)), and the saturation by Mod(f(z)). ] -- Robin Hankin Uncertainty Analyst Southampton Oceanography Centre European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...4,2,0,1)) [,1] [,2] [,3] [1,] 1 2 3 [2,] 0 0 0 [3,] 0 0 0 [4,] 2 3 4 [5,] 4 5 2 [6,] 0 0 0 [7,] 3 4 1 > anyone? -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...are red, with no warning given. Is there a reason why colour recycling would be a bad idea in this case? Also, it would be nice if arguments such as lwd were recycled if needed too. -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...vector back to integers, but OTOH it's wasteful to have 20 bins when I only need 3. My real application would have maybe a dozen distinct (prime) integers in the range 2 up to about 1e4. -- Robin Hankin Uncertainty Analyst Southampton Oceanography Centre European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...39;s, two B's and a C. Then I want AABBC AABCB AACBC ABABC . . .snip... BBAAC . . .snip... CBBAA [there are 5!/(2!*2!) = 30 arrangements. Note AABBC != BBAAC] How do I do this? -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...- a, the variable B is just a scalar and not a matrix (why is this?) What's the bulletproof method for assigning matrices to a list (whose length is not known at runtime)? -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...han the one above? [ PARI/GP is a widely used computer algebra system designed for fast computations in number theory. It is freely available at http://pari.math.u-bordeaux.fr/ ] -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...m,sapply(1:4,f,simplify=FALSE)) [1] 2828 doesn't do what I want (I would like a 2x3 matrix whose elements are the sum of corresponding elements in my list) How to do this nicely? -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...t and third of jj, viz list (jj[[1]],jj[[3]]). How to do this efficiently? My only idea was to loop through jj, and set unwanted components to NULL, but FAQ 7.1 warns against this. -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...2 7 12 7 9 [2,] 4 9 14 8 10 [3,] 3 6 9 0 0 > Note the zeros at lower-right. Is there a ready-made solution to this? -- Robin Hankin Uncertainty Analyst and Neutral Theorist, National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...t as h(1:20,rep(3,20),1:20,rep(1,20)) I haven't got any that need five yet, but this may change in the future. How do I implement this desired behaviour nicely? (I pass the arguments to .C(), which is why I need this). -- Robin Hankin Uncertainty Analyst Southampton Oceanography Centre SO14 3ZH tel +44(0)23-8059-7743 initialDOTsurname at soc.soton.ac.uk (edit in obvious way; spam precaution)

...)) do.call("[",c(a,jj)) do.call("[",list(a,unlist(jj))) Of course, the one that works is do.call("[",list(a,jj[[1]],jj[[2]])) but I don't know how long jj is apriori so this won't do. -- Robin Hankin Uncertainty Analyst Southampton Oceanography Centre SO14 3ZH tel +44(0)23-8059-7743 initialDOTsurname at soc.soton.ac.uk (edit in obvious way; spam precaution)

...of x, starting with x[i], after the first "1" As one goes along a row, one takes a product of the tail end of x, until the zeroes kick in. Am I missing some clever solution? -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743

...ontain B (six points). The x-axes of the two graphs must line up. I then want to draw straight lines that connect points of B to a particular point (or points) of A. How do I do this? -- Robin Hankin Uncertainty Analyst National Oceanography Centre, Southampton European Way, Southampton SO14 3ZH, UK tel 023-8059-7743