search for: expess

Displaying 8 results from an estimated 8 matches for "expess".

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2003 Jan 29
2
substitute, eval and hastables
...s of the list, stored as an vector of names: nn <- c("A", "B", "C"), so that I could get list elements like a$nn[1], a$nn[2], etc. Obviously it doesn't work. Instead I do: nn.Exp <- substitute(expression(a$b), list(b=nn[1])) eval(nn.Exp) in a result I get expession(a$"A") but not the value stored in the list. Meanwhile if I manually construct expression as expression(a$"A") and then evaluate it, it works fine. How do I solve that problem? Perhaps using such a list with "stringified" names are not very good programming style,...
2024 Oct 25
1
Post quantum encryption question
...re post quantum ciphers that can > effectively replace these available or in development? Is the threat still > too far off to be a serious concern? Grover's search algorithm gives a cryptographically-relevant quantum computer a quadratic speedup. This effectively halves the strength, as expessed in bits, of symmetric ciphers and (I think) hash algorithms. I.e. AES-256 would be "as strong" as AES-128, and AES-128 would be reduced to 64-bit equivalent strength. The latter sounds pretty scary but AIUI the attacker would need to perform close to 2^64 quantum computations to break...
2024 Oct 24
2
Post quantum encryption question
Have people given thought to the private key encryption methods in light of potential quantum attacks? While the recent paper about breaking 50bit RSA doesn't pose a threat I've been thinking about future harvest now, decrypt later attacks against CC20 and AES. Are there post quantum ciphers that can effectively replace these available or in development? Is the threat still too far off to
2000 Jun 21
1
converting a string to an element in a function call
...gh orders anyhow. The issue is that I pass a vector of strings to the function and want to use it as: update(.~.+ do.something.to.the.string(vector.argument.of.strings[i]) or in the code below update(.~.+unknown(facvec[i])) I've tried a whole bunch of things I don't understand parse(),as.expession() and the as.name() below but none seem to work. Here is the function I am using: function(facvec,base.lm){ if ( missing(facvec) || missing(base.lm) ){ cat("This script assesses the contribution of terms in a lm model.\n") cat(" It expects a vector of names and a lm.obje...
2003 Jun 22
1
Install help needed
...ges: fixme:win:SetWindowTextA cannot set text "Unpacking Compuserve..." of other process qindow (nil) fixme:int21:DOS3Call get interrupt vector - move to winedos... fixme:int21:DOS3Call get interrupt vector - move to winedos... Then an install box is displayed allowing a choice between expess and custom install. Doesn't matter which one I click. All I get after that is a box with blue in it. I can't move the blue box, or minimize it. I have left the computer for extended periods and the box remains. When I use top, wineserver is busy doing >something<. Any ideas?? 2)...
2018 Nov 10
0
Fedora 29 upgrade: texlive-scheme-medium may depend on R (texlive-includernw)
On Sat, 10 Nov 2018, Andreas Storvik Strauman wrote: > Hello! I'm confused as to what the actual problem with includeRnw is? Is > the problem that it relies on R-knitr? Before it would be withdrawn, may > I be given an opportunity to fix said problem? Yes, the problem is that it expesses an external dependence on anything outside texlive. On packaging systems (for me Fedora), this explicitly pulls in all of R and all R-knitr's other package dependencies. If an existing R installation is not found by the package manager, the user gets an unnecessary install of R which will...
2016 Apr 28
0
Antwort: RE: Interdependencies of variable types, logical expressions and NA
...es of variable types, logical > expressions and NA > > Hi Petr, > > many thanks for your reply. > > Yes it's interesting. I did not understand what the truth table wanted to > say due to 4 columns instead of 3. But know I got it. > > The other thing is that logical expessions with NA work differently on > different types of variables as my example code shows: > > -- cut -- > # Truth table for logicals and NA > > var2 <- c(TRUE, FALSE) > var3 <- c(NA, NA) > var1 <- c(1, 1) > ds <- data.frame(var1, var2, var3) > ds > > d...
2018 Nov 10
2
Fedora 29 upgrade: texlive-scheme-medium may depend on R (texlive-includernw)
On Sat, 10 Nov 2018, I?aki Ucar wrote: > On Sat, 10 Nov 2018 at 15:17, Roger Bivand <Roger.Bivand at nhh.no> wrote: >> >> On upgrading my F28 to F29, I've found that R-core and a number of R >> packages: >> >> R-evaluate R-glue R-highr R-knitr R-magrittr R-markdown R-mime R-stringi >> R-stringr R-yaml >> >> are installed, although I