search for: calandra

Displaying 20 results from an estimated 33 matches for "calandra".

2010 Nov 17
1
Give me all operator
Hello is there in R any operator that give you all the data of a matrix for example in matlab x(2,3) returns the 2ndth row and 3rdth column x(2,:) returns all the columns of the 2nd row. In R now I would like to print all the  CRagent[[i]][2]  CRagent[[:]][2] doesnot work of course. Other option is to make a loop with an index i that spans from 1:last element of CRagent[[]] but this is not
2003 Jul 10
6
info
...nalyte dose + 1) y = the optical absorbance data a = the curves top asymptote b = the slope of the curve c = the curves bottom asymptote m = the curve X intercept Have you never seen this formula, because i don't fine information or lecterature about solution of this!!! Can i help me Hi Mr. Calandra
2010 Feb 24
1
problem with looping on sqlSave()
Dear R users, I have a follow-up question on sqlSave(). Since most of the output from the tests I use are lists, I would like to loop to export each element of the list and append it to the sheet. Here is what I do: > library(RODBC) > test <- structure(list(m = structure(c(0.090909090909091, 0.181818181818182, 0.272727272727273, 0.363636363636364, 0.454545454545455,
2010 Dec 01
2
Problem in reading Excel spreadsheets
Hi folks, Win 7 64bit R 2.12.0 32bit Problem in reading Excel spreadsheets (the text file, research_databaseI.xls, was download on Internet) > data=odbcConnectExcel(file.choose()) > sqlTables(data) TABLE_CAT TABLE_SCHEM 1 C:\\Users\\satimiswin764\\Documents\\research_databaseI <NA> 2
2012 Nov 29
0
Fwd: Re: choose folder interactively
Thanks Philippe for your answer! It doesn't work for me, but I guess I have something wrong with Tcl/Tk. Ivan -- Ivan CALANDRA Universit? de Bourgogne UMR CNRS/uB 6282 Biog?osciences 6 Boulevard Gabriel 21000 Dijon, FRANCE +33(0)3.80.39.63.06 ivan.calandra at u-bourgogne.fr http://biogeosciences.u-bourgogne.fr/calandra -------- Message original -------- Sujet: Re: [R] choose folder interactively Date :...
2016 Apr 26
1
ylim in barplot()
...t it to work), or why xpd has no influence when using devEMF::emf()... The problem with saving directly in RStudio is that it requires to manually save the plot, and this becomes troublesome when there are a lot of plot commands in a single script. Bests, Ivan (on behalf of St?phanie) -- Ivan Calandra, PhD Scientific Mediator University of Reims Champagne-Ardenne GEGENAA - EA 3795 CREA - 2 esplanade Roland Garros 51100 Reims, France +33(0)3 26 77 36 89 ivan.calandra at univ-reims.fr -- https://www.researchgate.net/profile/Ivan_Calandra https://publons.com/author/7...
2017 Jun 07
0
An R question
Hi, Check the FAQ 7.31 https://cran.rstudio.com/doc/FAQ/R-FAQ.html#Why-doesn_0027t-R-think-these-numbers-are-equal_003f And read the posting guide too... https://www.r-project.org/posting-guide.html HTH, Ivan -- Dr. Ivan Calandra TraCEr, Laboratory for Traceology and Controlled Experiments MONREPOS Archaeological Research Centre and Museum for Human Behavioural Evolution Schloss Monrepos 56567 Neuwied, Germany +49 (0) 2631 9772-243 https://www.researchgate.net/profile/Ivan_Calandra On 07/06/2017 16:...
2012 Feb 02
1
Writing out data
What is the best way to write out comma separated data, as a program is running (rather than waiting to the end using write.csv)? At the moment I'm doing this, but I guess it's not the most efficient. The data is in a column in the matrix postcount, and I'm using a loop to write out each of the 100 elements. for (j in 1:100) { cat(postcount[1,j], ",", file=filename,
2010 Aug 09
0
Fwd: RE: pvclust function
...closer look at ?pvclust, especially the "usage", "arguments" and "examples" parts. HTH, Ivan -------- Message original -------- Sujet: RE: pvclust function Date : Mon, 9 Aug 2010 10:52:30 +0100 De : Holt, Hannah Rebecca <hholt@rvc.ac.uk> Pour : <ivan.calandra@uni-hamburg.de> Sorry Ivan, Thanks for your tips the output from str(cluster) is; function (file, header = FALSE, sep = "", quote = "\"'", dec = ".", row.names, col.names, as.is = !stringsAsFactors, na.strings = "NA", colClasses = N...
2010 May 28
3
Using a loop to define new variables
Hi, I'm a novice R user, much more used to SAS. My problem is pretty simple - basically, in a data frame, I have variables named x1,....,x10 and y1,...,y10; and I would like to create r1 = x1 / y1 etc Apologies if this is way too rudimentary - but I couldn't find any posts online which solve this exact issue. Cheers, Andre
2017 Jun 07
3
An R question
Hi all, In checking my R codes, I encountered the following problem. Is there a way to fix this? I tried to specify options(digits=). I did not fix the problem. Thanks so much for your help! Hanna > cdf(pmass)[2,2]==pcum[2,2][1] FALSE> cdf(pmass)[2,2][1] 0.9999758> pcum[2,2][1] 0.9999758 [[alternative HTML version deleted]]
2010 Dec 07
4
increase or decrease variable by 1
many languages have shorthands for that operation like: variable += 1 or ++variable is there something like that in R ? -- View this message in context: http://r.789695.n4.nabble.com/increase-or-decrease-variable-by-1-tp3076390p3076390.html Sent from the R help mailing list archive at Nabble.com.
2011 Jan 24
2
crazy loop error.
Dear R-users, This is a loop which is part of a bigger script. I managed to isolate the error in this loop and simplified it to the bare minimum and made it self-contained. a<-c(2,3,4,5,5,5,6,6,6,7) for(n in 1:10) { print(paste("n: ",n)) z1<-a[n] #make a list container ldata<-list() t=1 while(z1==a[n]) { #add dataframes to list ldata[[t]]<-paste("hello") n=n+1
2010 Feb 10
3
How to repeat the names?
Dear R helpers   I have a city.csv file as given below.   'city.csv' city_name1        city_name2 New York City    Buffallo         So I define   city_name = read.csv('city.csv') city1 = city_name$city_name1 city2 = city_name$city_name2   My problem is how do I repeat the names one after other say 10 times i.e. my output should be like   New York City Buffallo New York City
2011 Feb 21
3
assign value to multiple objects with a given ls pattern
Dear R colleagues, This seems pretty straight forward but I have been banging my head on this for some time and can't seem to find a solution suppose I have something like a1<-1; a2<-2; a3<-3; a4<-4; b1<-3; b2<-4 I would like to quickly assign to objects with a certain pattern, e.g., those in ls(pattern="a") a specific value, e.g., "99", without
2010 Mar 07
1
Some hints for the R beginner
There is now a document called "Some hints for the R beginner" whose purpose is to get people up and running with R as quickly as possible. Direct access to it is: http://www.burns-stat.com/pages/Tutor/hints_R_begin.html JRR Tolkien wrote a story (sans hobbits) called 'Leaf by Niggle' that has always resonated with me. I offer you an imperfect, incomplete
2010 Nov 17
2
Extract elements that starts with...
Hi I got an table that contains this colum and i wonder if there is any nice way to extract all rows that contains all dose that start with A02, so all the rows that have A020 and A021 etc etc... | A010 | | A010 | | A010 | | A020 | | A020 | | A020 | | A020 | | A020 | | A021 | | A021 | Thx for your help //Joel -- View this message in context:
2010 Apr 09
6
How to run Shapiro-Wilk test for each grouped variable?
I want to run Shapiro-Wilk test for each variable in my dataset, each grouped by variable groupFactor. I have these working commands: > data.n<-names(data) # put names into a vector called data.n > by(eval(parse(text=(paste("data",data.n[3],sep="$")))), data$factor, shapiro.test) #run shapiro.test but I must to change the variable number manualy. How to automate
2012 Oct 16
1
Problems with xlsx and rjava
Hi, I keep getting the below error regarding rJava which is required by package xlsx (I have used it in the past to directly import data from Excel 2010). I was on R version 2.15.0 when I was getting this error this morning. So I upgraded to 2.15.1 but still the same problem. I tried unstalling and reinstalling xlsx and even rJava directly from the source as indicated here:
2010 Sep 16
1
Help for an absolutely r-noob
Hello together, I am an absolute noob in R and therefore I need help urgently. I have received a script from my tutor with plot functions in it. However, I can' manage to adapt these plots. The hole script is as follows: setwd("E:/") ##### (1) Read data ### dat <- read.table("Komfort_Tatsaechliche_ID_Versuchsreihe_1.txt", header=TRUE, sep="\t",