search for: marchena

...l paquete implementa diferentes modelos de inventario, el efecto látigo y otras variables de desempeño de la cadena de suministro. Esta es la primera versión del paquete y también es mi primer paquete para R. Sugerencias, informes de errores y otros comentarios son bienvenidos. Gracias, Marlene Marchena. [[alternative HTML version deleted]]

Hi R users, Someone knows how to replace Infinite value by zero. I have a vector with some Inf value and I want to substitute these values by zero to get the mean of the components of the vector. Any idea? Many thanks, Marlene. [[alternative HTML version deleted]]

Hi R-users I'm writing a code to run a fuction but I found an error that I can't fix. I reproduced the error with a simple example. The correct answer is k but I can't fill my s matrix. What I'm doing wrong? s<-matrix(data=NA,nrow=1,ncol=5 ) s for(i in 1:5) { k=sqrt(i) s[,i]<-k[i] print(k) } s Thanks in advance, Marlene. [[alternative

Hi, I need to repor the index of a min value of each row in a matrix, but I don't know how to do that when I have more than one min value. Here is my example > dat <- matrix(c(5.4,4.8,5.6,4.8,NA,4.4,4.6,3.4,NA,NA,4,2.4,NA,NA,NA,2),byrow=TRUE,ncol=4) > dat [,1] [,2] [,3] [,4] [1,] 5.4 4.8 5.6 4.8 [2,] NA 4.4 4.6 3.4 [3,] NA NA 4.0 2.4 [4,] NA NA NA 2.0

Dear R-user Suppose I have the following data y=c(2,1,5,8,11,3,1,7,50,21,33,7,60) x=data.frame(y) for(i in 4:nrow(x)) x[i,] =var(x[i-3:i-1,]) I'm trying to get a new variable with the variance of the 3 previous values (just an example) and with NA in the three first positions. I know that my for() is wrong but I'm not able to find my error. Any idea? Thanks, Marlene.

...e> The *bullwhipgame* app has been developed to substitute some related functions (now deprecated) from the *SCperf* package and it is still in development. Comments, suggestions, bug report or just want to contribute to the project please do not hesitate to contact me. Kind regards, Marlene Marchena [[alternative HTML version deleted]] _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/listinfo/r-packages

Dear R users, I'm running a SVR in package e1071 but I did not able to calculate the parameters w and b of the regression. I don't know how to do that and if it is possible to do it with this package. Someone have some idea. Any help would be much appreciated. Marlene [[alternative HTML version deleted]]

Hola amor! Finalmente llegué a D.C. Ya estoy en el albergue pero el cuarto solo va a ser liberado a la una o tal vez dos de la tarde. Pero no importa al menos ya estoy aqui, ya tomé desayuno que por cierto es horrible. Voy a poder tomar baño y usar un locker por un dolar. Entonces voy a tomar baño guardar mis cosas y salir ya que aqui no hago nada. Cómo fue tu domingo? Cómo está Esteban? El

...e> The *bullwhipgame* app has been developed to substitute some related functions (now deprecated) from the *SCperf* package and it is still in development. Comments, suggestions, bug report or just want to contribute to the project please do not hesitate to contact me. Kind regards, Marlene Marchena [[alternative HTML version deleted]] _______________________________________________ R-packages mailing list R-packages at r-project.org https://stat.ethz.ch/mailman/listinfo/r-packages

...mero > al llamar a R. > > Lo más natural sería eliminar R de $HOME ya que tienes instalada la > versión actual "como Dios manda". > > Un saludo, > > Carlos J. Gil Bellosta > http://www.datanalytics.com > > > El día 30 de noviembre de 2011 01:55, marlene marchena > <marchenamarlene@gmail.com> escribió: > > Hola! Muchas gracias por la ayuda! > > > > Ya creia que estaba enloqueciendo. Bueno sospecho que Carlos tiene razón, > > debo de tener dos versiones instaladas. > > > > Aqui las salidas de los comandos: > &g...

Hola buenas, me preguntaba si alguno usa hadoop Spark en su día día y si me podíais recomendar un buen curso para empezar. Estuve en la charla de meetup de madrid hace unos meses de Rspark y estuvo bien, ahora me preguntaba si es posible profundizar. Pero me gustaría tener recomendaciones de cualquier material que podáis recomendar, cursos de coursera que hayais hecho, libros que hayais leido,

Hi R users, I'm trying to run a SVM - regression using e1071 package but the function svm() all the time apply a classification method rather than a regression. svm.m1 <- svm(st ~ ., data = train, cost = 1000, gamma = 1e-03) Parameters: SVM-Type: C-classification SVM-Kernel: radial cost: 1000 gamma: 0.001 Number of Support Vectors: 209

> > Hi all, > > I need some help about how to calculate w in a SVR in package e1071. > > I have a regression y_i=f(x_i)+e > > where f(*x*)=(w,phi(x))+b > > then go on with the SVR calculation I know that w*=Sum_i=1^n [(á_i - > á*_i)K(x,x_i) ] where á_i and á*_i are the lagrangian multipliers of the > dual form. > > o.k but how I will get it in R? > >