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382 results for “from:Marius Hofert”

lattice: how to "center" a title?
Marius Hofert · Jan 4, 2011 · r-help

Very nice, thanks a lot. Cheers, Marius

How to integrate a function with additional argument being a vector or matrix?
Marius Hofert · Dec 22, 2010 · r-help

Ahh... thanks, I totally missed that. Cheers, Marius

Length of seed for l'Ecuyer-CMRG
Marius Hofert · Jan 22, 2013 · r-devel

I'm sorry, I must have overlooked the "... as given by .Random.seed". Thanks for helping. Marius

Error in makeMPIcluster(spec, ...): how to get a minimal example for parallel computing with doSNOW to run?
Marius Hofert · Dec 16, 2010 · r-help

Dear Mario, I tried "-n 4" and obtain the same error :-( Cheers, Marius

Quiz: Who finds the nicest form of X_1^\prime?
Marius Hofert · Apr 6, 2011 · r-help

Haha, I found a hack (using the letter "l"): plot(0,0,main=expression(italic(X)[1]^bolditalic("l"))) Cheers, Marius

Why is format(10000, big.mark = "\\,") not 10\,000?
Marius Hofert · Dec 30, 2010 · r-help

Hi, why does format(10000, big.mark = "\\,") not give me "10\,000"? How can I get this kind of "big.mark"? Cheers, Marius

lattice: how to remove ticks from splom()?
Marius Hofert · Jun 9, 2010 · r-help

Dear ExpeRts, why does splom(~iris[,1:4],scales = list(alternating = c(0,0), tck = c(0,0))) not remove the ticks and labels (xyplot does)? Cheers, Marius

pbirthday() for larger number of classes
Marius Hofert · May 22, 2020 · r-devel

... and one should include the pigeonhole principle: pbirthday2 <- function(n, classes = 365) { c <- classes # as pbirthday() if(n >= 2) { if(n > classes) 1 else -expm1(sum(log1p(-(1:(n-1))/classes))) } else 0 }

What happened to the vignette of 'parallel'?
Marius Hofert · Apr 14, 2012 · r-sig-hpc

Hi, I am looking for the latest version of the vignette of 'parallel'. I can't find it (not on CRAN, not via vignette()). How can I obtain it? Cheers, Marius

sort() depends on locale (and platform and build)
Marius Hofert · Jun 15, 2014 · r-help

Hi, ... so something like this? [in foo.R] old.coll <- Sys.getlocale("LC_COLLATE") Sys.setlocale("LC_COLLATE", locale="C") <do_your_sorting_here> Sys.setlocale("LC_COLLATE", locale=old.coll) Cheers, Marius

how to print a colored plot in black/white?
Marius Hofert · Jun 23, 2010 · r-help

Dear expeRts, shouldn't this... x <- 1:10 myplot <- xyplot(x~x,col="red") trellis.device(postscript,color=FALSE,file="plot.ps") print(myplot) dev.off() ... give a black/white plot? Cheers, Marius

how to get higher derivatives with "deriv"
Marius Hofert · Jul 30, 2010 · r-help

Okay, great. Thanks. Cheers, Marius -- View this message in context: http://r.789695.n4.nabble.com/how-to-get-higher-derivatives-with-deriv-tp2306711p2307709.html Sent from the R help mailing list archive at Nabble.com.

bwplot: how to draw smooth curve through medians?
Marius Hofert · May 12, 2010 · r-help

Dear R experts, Is there an easy way how to combine the black dots (i.e., the medians) in the bwplot bwplot(voice.part ~ height, data=singer, xlab="Height (inches)") by a smooth curve? Cheers, Marius

dev.off(): is there a 'quiet'-mode?
Marius Hofert · May 12, 2010 · r-help

Dear R experts, On shutting down a device with dev.off(), the number and name of the new active device is returned/printed. How can this be prevented from being shown? Is there something like a 'quiet'-mode? Cheers, marius

Is there a plotmath symbol \mapsto?
Marius Hofert · Dec 12, 2014 · r-help

Dear Professor Ripley, Thank you for your reply. Do you specify \u21A6 via something like this? plot(1, main=expression(symbol("\u21A6"))) This gives an the 'registered trademark symbol' (circled R) for me (also cairo-based Linux). Thanks and cheers...

lattice: how to "center" a title?
Marius Hofert · Jan 4, 2011 · r-help

Dear Dieter, many thanks, exactly what I was looking for. Cheers, Marius -- View this message in context: http://r.789695.n4.nabble.com/lattice-how-to-center-a-title-tp3173271p3173931.html Sent from the R help mailing list archive at...

"strange" behavior of panel.abline inside a for-loop
Marius Hofert · Feb 8, 2011 · r-help

Dear Karl, thanks for your answer. I am still wondering why the point "i~i" is plotted at "i" but not the vertical line? And how I can plot the vertical line at "i". Do you know a solution? Cheers...

How to construct a valid seed for l'Ecuyer's method with given .Random.seed?
Marius Hofert · Jan 23, 2013 · r-help

Dear Daniel, That's exactly what I also suspected (last post). The question now seems how to correctly convert .Random.seed from signed to unsigned so that it is accepted by the rlecuyer package. Cheers, Marius

Expressions from boxplot() passed to bxp()
Marius Hofert · Mar 26, 2020 · r-devel

Hi, Is this expected behavior (R-3.6.0)? dat <- cbind(x = 1:10, y = 10:1) ylab <- substitute(X[t], list(t = 2)) plot(dat, ylab = ylab) # works (correctly displays ylab) boxplot(dat, ylab = ylab) # fails boxplot(dat, ylab...

lattice: remove box around wireframe (*follow-up*)
Marius Hofert · Nov 27, 2010 · r-help

okay, solved :-)) It is mentioned here: http://r.789695.n4.nabble.com/How-to-remove-outer-box-from-Wireframe-plots-td824819.html so ... wireframe(z ~ x*y, data = test, scales = list(col = "black", arrows = FALSE), par.settings = list(axis.line...

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