search for: dicing

I'm trying to get R to simulate the sum of the values on 10 fair dice (yes, it's related to a homework problem, but is not the problem itself). I tried to do this: > rep(sum(sample(1:6,100,replace=T)), times=10) [1] 341 341 341 341 341 341 341 341 341 341 and noticed that sum(sample()) seems to be only evaluated once. How can I overcome this, so that I get a vector of values that

Hello All, A colleague of mine started working with R and out of curiosity I did some research on the language. Very nice. In my opinion this is one of the best languages I've found for getting tasks I'm interested in done. I wrote this simple die roller and was curious to know if it is R enough. ############################################################################## #

Hi, I wanted the DICE coefficient (similarity measure for binary variables) to be calculated in R and found that the "igraph" package has the option of "similarity.dice" to do this. But, for this command, the input object should be an igraph object. But, I have a dataframe of columns containing 1's and 0's. Can I convert this dataframe into an igraph object, so that

Dear All, I get some problems using the 'phylo' and dissimilarity functions in R. I converted an output from 'hclust' into an order of phylo so as to be able to use the 'consensus' function on it. Each time I submit the consensus codes, my computer hangs. When I tried to see what the contents of the object converted into order phylo is, I get the message

HI, i'm really new of R and i need some help. I have to describe some distributions for some dices throw: - launching 3 dices i need the distribution of the sum of the two higher values - launching 4 dices i need the distribution of the occurrences of the same value possibly i need a way to compare the two distribution adding the fourth dice to the first without summing it (only for

Hi R, I was using 'as.dendrogram' with the DIST coefficient, where the smaller values of the DIST coefficient, say that the objects are closer to each other, while the larger values of the coefficient say that the objects are far from each other. But now, I have my coefficient as the DICE coefficient(in some sense similar to correlation coefficient), where the larger coefficient

Im trying to simulate the rolling of a pair of dice   this is my function: #function to simulate tosses of a pair of dice #from the simulation, the program returns the empirical probability of #observing a double count <- 0 for(j in 1:sim){#begin loop die1 <- sample(1:6,1) print(die1) die2 <- sample(1:6,1) print(die2) count <- ifelse(die1 == die2, count + 1, count) }#end loop emprob

Hallo I am teaching a very elementary intro course about R, and want to show the students how to find the distribution of the maximum of rolling two balanced die. Is there perhaps a more elegant way to do this, other than the way I am using below? (I would like to show them two ways - the one shown here, and perhaps and improved/elegant approach (showing off the "beauty" of R.

Hola a todos! Espero que alguien me pueda echar algo de luz al problema que tengo. Estoy intentando instalar algunos paquetes antiguos en R (3.3.0), como ?devtools? en su penúltima versión, y me está resultando imposible. Instalé Rtools y R me dice que funciona, pero no consigo hacer que se instale el paquete. He probado bajando el paquete en formato .tar.gz y luego con las instrucciones:

hello people, I want to make a biased dice using the sample() function and print out the results after n number of runs, I've successfully generated the dice using the following command: mydie2<-function(n=1000,y=NULL,...){ for(i in 1:n){ x<-sample(1:6,n,replace=TRUE,prob=c(1,1,2,3,2,1)/10) x=runif(n) if(x<=1/10){y[i]=1} else if(x<=2/10){y[i]=2} else if(x<=4/10){y[i]=3} else

Hi All I had to assure the randomness of backgammon game's two dices. I took 8,000,000 observations and found that one of the dices is not uniform distributed. I took 80,000,000 observations and found that the dice is uniform distributed. In both tests I used Pearson Chi Square test. My questions: 1. How many observations should I take? 2. How much the 80,000,000

Hi, I have noticed that when using R.matlab that the connection can become quite slow though it remains open. I have to kill both my R session and Matlab to start over and establish a new connection (eg. close(matlab) - seems hung). Is there a way around this? I have been doing the following to establish the connection : Matlab(host="localhost", port=9999, remote=FALSE) matlab<-

hi, im having a table which holds a lot of information. i would like to slice & dice in a BI-manner the table. u guys have any suggestions? table looks a bit like this: user app [appa, appb, appc] action [actiona, actionb, actionc] timestamps ... so it would be cool to sort, drill in&up based on the various dimensions. im not asking for a full bi-solution, but maybe the one or the other

Hi there, I'm writing a function that calculates the probability of different outcomes of dice rolls (e.g., the sum of the highest three rolls of five six-sided dice). I'm using the "combinations" function from the "gtools" package, which is great: it gives me a matrix with all of the possible combinations (with repetitions allowed). Now I want to count the number

Estimada comunidad, tengo el siguiente problema: Un data.frame con muchas filas de las que debo eliminar aquellas que cumplen varios criterios al mismo tiempo. Por ejemplo este data.frame: sol con dia NCar NIns isom area rep tipo 1 con 0.001 1 160s 0 s 6.083543e-01 1 2 con 0.001 1 161c 1 c 1.391274e-03 1 <NA> 3 con 0.001 1 161c 1 c

Buenos días: A ver.... una duda muy general, y otra más específica... Después de haber conseguido tratar con R.... y hacer un script de 161 páginas... es hora de empezar a hacer bucles para reducirlo a menos de 5 hojas.... el primer problema que me encuentro es que se queja de que el vector de datos que intruduzco (una base de datos de 11 años) es demasiado grande; tengo segun R... un vector de

I''m trying to finish up a comp lab sign-in app in RoR that includes a db table logging each visit with a timestamp. I want to be able to loop through the visits table and get a weekly or monthly array and print a table of the last four weeks listing a count for the number of visits each day. I''ve got it working alright but it''s pretty ugly...overcoded. Does anyone

Hola, Tengo la version R 3.1, estoy intentado usar este script pero me dice que el simbolo " no tiene que estar ahi, ya intente borrando comillas o diferentes formas y no lo consigo, si alguien sabe agradezco ayuda. setwd("C:/users/marta/desktop/DB") library(chron) library(xlsx) filename<-"univerest_50.csv" filename<-"monicap_50.csv"

Hi there, I'm in the following directory: ~/Documents/Rstuff/diceFiles/dice_1.1 The directory "dice" is in this directory, with all the usual build files (DESCRIPTION, NAMESPACE, etc). I'm trying to run the following command: R CMD check dice (where "dice" is the name of the package I'm checking), and I get the following: * checking package dependencies ...

Buenas noches Instale ubuntu 14.04, corro un archivo que me funcionaba en windows, pero no se que librería debería cargar (instalar) para solucionar el problema. El codigo R dice: function(x) tools::texi2pdf El error dice: Error en texi2dvi(file = file, pdf = TRUE, clean = clean, quiet = quiet, : Running 'texi2dvi' on ' Otro archivo se compilo sin problemas (lyx con sreave).