similar to: sending a vector of characters as arguments for a function

Dear R_Users, I am confronted to a technical issue that I wouldn't even know how to start to handle and where to look at. It is about data manipulation in a dataframe and value substitution Imagine I have a matrix describing a set of chemical equations. Colnames are Components names and Rownames are Reaction names Each cell in that matrix corresponds to the stoechiometric coefficient to the

Dear R users, I am trying to connect R to data that is in a Access Database but I have problem with the construction of queries using special characters. I am using RODBC package. The following is working : > MyQuery<-paste("SELECT first( (DateHeure) ) , avg(NNO3_AT322_OUT_moy) AS Cond FROM Colonne_3 ") > Col3<-sqlQuery(con, query=MyQuery) > Col3

Dear R-Listers, I am very confused with what seems to be a misuse of the faceting options with gplot function and I hope you might help me on this. z contains various simulation results from simulations with different set of parameters. I melt my data to have the following data.frame structure : > str(z) 'data.frame': 12383 obs. of 5 variables: $ vID : num 1 2 3 4 5 6 7 8

Hi Rusers, I hope to divide the original dataset into several subsets and output these multilple datasets. But errors appeared in my loops. See example. ###### a<-c(1:10) b<-c(rep(1,3),rep(2,3),rep(3,4)) c<-data.frame(a,b) #c is the example data num<-c(unique(b)) # I hope to get the subsets c_1.csv,c_2.csv and c_3.csv #Errors for (i in num) { c_num<-c[c$b==num,]

Hi R-helpers I would like to plot some planes which are perpendicular to the x-y plane, such as x=y. Is there a way to do this in wireframe? I realize that I am not plotting a function of x, y since there are infinite number of z's that satisfy the above relation.... Hmm... Somewhat related, I would also like to plot a line in 3 d space... Finally, if you are feeling really brave, I

Hi, > Both A and B are undef: > LHS = (undef & undef) | (undef & undef) = undef // Since ~undef = undef > RHS = undef > Thus transform is correct. LLVM documentation (http://llvm.org/docs/LangRef.html#undefined-values) suggests that it is unsafe to consider (a & undef = undef) and (a | undef = undef). "As such, it is unsafe to optimize or assume

Dear All, I would like to generate m positive real numbers c_i, I=1,...,m, such that (1) c_1 + c_2 + ... + c_m=m, (1) after being ordered into c_1 >= c_2 >= .... >=c_m>0, we have that c_m is of the same order of m^(-1/8), when m is sufficiently large. Thanks, -Chee [[alternative HTML version deleted]]

Thanks for your answers. Another example of unsound transformation on Boolean algebra. According to the LLVM documentation (http://llvm.org/docs/LangRef.html#undefined-values) it is unsafe to consider ' a & undef = undef ' and ' a | undef = undef ' but 'undef xor undef = undef' is safe. Now, given an expression ((a & (~b)) | ((~a) & b)) where a and b are

Hello, I'm new on this list, here's the problem we are experiencing : We have installed pware61-64.samba.3.6.0.0.bff.gz on an Aix partition running on 6100-06-05-1115. We have succeeded in entering the system in our AD. We can reach the domain : commands /opt/pware/bin/wbinfo -a USERNAME is correct. The problem is that lsuser -R WINBIND don't work : message "User does not

> You can call (some) R functionality from C When I read about 'R api' I thought that we could call all the functionality of R. I think that in the windows world, this is called OLE automation. From a pure programmer point of view, it is very convenient and my customer is creating a team of programmers. But, if only 'some' functionalities can be called, it's not so useful.

Hi, Is there any other difference between 'require' and 'library' than the error or warning when the library is not found ? Jean in France -------------- next part -------------- Ce message et toutes les pi?ces jointes (ci-apr?s le 'Message') sont ?tablis ? l'intention exclusive des destinataires et les informations qui y figurent sont strictement confidentielles.

Hi Martyn, Many thanks for your answer. If I make it short : we can, once we know how to do it, 'drive' R from within FORTRAN for example to do a Myarray = seq(0, mydimension) in R once we have compute mydimension in FORTRAN. Is that correct ? If yes : it's too 'complicated' for the time I am hired (I mean I have been hired to do FORTRAN code not to learn R !). Second

Hello all, I have some trouble in reconstructing a valid expression within a function, here is my question. I am building a function : SUB<-function(DF,subset=TRUE) { #where DF is a data frame, with Var1, Var2, Fact1, Fact2, Fact3 #and subset would be an expression, eg. Fact3 == 1 #in a first time I want to build a subset from DF #I managed to, with an expression like eg. DF$Fact3, # but I

Hello, any body know the real difference between the BE and the free one? Regards, al Andr? Lepage Directeur g?n?ral STS VoIP, Network security, Anti-virus. URL: http://www.sts.ca T?l?phone: Qu?bec 418-521-2347 Poste 227 Montr?al 514-875-1105 Poste 227 Sans frais 877-330-3305 Poste 227

Hello every one an a pretty new year. I'm making a derivative a the Feather linux-live which can be found here: http://franboisson.homeip.net/clef/ClefAgreg.iso Everything works find except with USB key with sector size different then 512 (2048 in my case). I look at the source of syslinux and change the following: * The test in syslxmod.c * Change each time I see SECTOR_SHIFT=9 in

Hi, I am a FORTRAN developer and I am 'translating' R functions in FORTRAN subroutines. I am 'new' to R. It's my first question in this mailing-list and English is not my natural language. Very often, an R function gives an 'array' as result and you don't have to bother with the dimension of the array : R creates automatically an array with the good length.

Hello every one Working under Windows Xp in French, and R version 2.4.0 (and : > localeToCharset() : "ISO8859-1" ) I am trying to source a file with basic commands. source("R files/InputFile Analysis (Calculs et mises à l'échelle - gestion des pb d'unités).r") and it works fine as long as I do not use command like these ones :

On Mar 8, 2016, at 6:57 AM, MAURICE Jean - externe <jean-externe.maurice at edf.fr> wrote: >> You can call (some) R functionality from C > When I read about 'R api' I thought that we could call all the functionality of R. I think that in the windows world, this is called OLE automation. From a pure programmer point of view, it is very convenient and my customer is creating

Dear R people, it is a pleasure to try and use functionnalities that are in ggplot, even with my poor capacities in R. so far, i'dlike to be able to use these in my own function, and to "be able to use it repeatedly from vectors where I store the names of my columns." I have understood that this is a very discussed topic, that many post have been exhanged but I cannot understand

Hello all, I want to draw a grid behind my graphes, using lattice package. I manage to do it with instructions like this one : xyplot(Sepal.Length + Sepal.Width ~ Petal.Length , data = iris, allow.multiple = TRUE, scales = "same",type="l", panel = function(...) { panel.grid(h=-1, v= -1) ; panel.superpose(...) } ) I was wondering if there were a way to do it