search for: regresion

Muy buenas tardes, les escribo con el fin de saber si alguno de ustedes, me puede dar una guia de como generar una simulacion para ilustrar el insesgamiento de los estimadores B0 y B1 de regresion lineal simple lo he logrado hacer para un tamaño de muestra fijo pero no he podido hacer las iterciones. En particular lo que requiero es hacer la simulacion que me grafique para varios diferentes valores fijos de los paramentros los valores de los estimadores, que muestre en la grafica el valor me...

Saludos a todos. Tengo problemas para encontrar la funcion que te permite generar la formula de la regresion lineal entre dos variables y la linea de tendencia en el gráfico de dispersion de puntos, lo que si puedo realizar es el gráfico con los puntos distribuidos en los 2 ejes pero lo demás que mencioné no se como ingresarlo. Saludos, Gabriel Antonio Trujillo Paucar Estudiante de Biologia 997603768

...SPEC, which are absolute in nature. My question was how do I interpret these absolue values. How does these values help me to find out wheher my model is good. With regards Ms Maithili Shiva ________________________________________________________________________ > Subject: [R] Logistic regresion - Interpreting (SENS) and (SPEC) > To: r-help at r-project.org > Date: Friday, October 10, 2008, 5:54 AM > Hi > > Hi I am working on credit scoring model using logistic > regression. I havd main sample of 42500 clentes and based on > their status as regards to defaulted / non...

Hi, Does R have any functions implementing such multinomial regression: (S_t^A,S_t^B)~MN(N_t-Y_{t-1},P_t^A,P_t^B) where MN(n,p_1,p_2) is multinomial distribution with parameters n, p_1, p_2. Here P_t^A and P_t^B are nonlinear functions from predictor variables and parameters which need to be estimated. Here A and B are used for notation, they are not parameters. My second question is about

Hii all, may I introduce myself. my name is Putro Nugroho i'am astudent of Gadjah Mada University, i'am doing on my final exam about Parametric Regression Model with gamma and log-gamma regression model. I have a problem about the syntax program on R because it doesn't work with gamma distribution with log link function. when I use zelig package it doesn't work when the data is

Hi Hi I am working on credit scoring model using logistic regression. I havd main sample of 42500 clentes and based on their status as regards to defaulted / non - defaulted, I have genereted the probability of default. I have a hold out sample of 5000 clients. I have calculated (1) No of correctly classified goods Gg, (2) No of correcly classified Bads Bg and also (3) number of wrongly

Hi, I have a dataset which has var1 from 1 sourse and var2 from 2 different methods. I need a new variable such that var2 values from both methods can beused as 1 variable. I believe deming regression can be used to do this. I just don't know how to do it. My data looks like: idvar1var2method1var2method2 11.22.1NA 21.62.4NA 31.52.2NA 41.3NA2.8 51.6NA3.1 61.4NA2.7 Please help. Sincerely,

Hola Alexander Quizá esto te pueda ser útil reg<-function(a,b,sigma,x){ data<-a+b*x+rnorm(length(x),0,sigma) lm<-lm(data~x) c(lm$coefficients[1],lm$coefficients[2]) } zz<-replicate(1000,reg(1,2,0.5,100,c(1:100))) hist(zz[1,]) Paco

Dear R-users, This is partially a R question and partially general econometrics. I have three time series which are somewhat "dissimilar": plotting their histograms indicates that they do not come from the same distribution, never mind a normal distribution. I wish to predict the first as a function of the latter two. I need a regression method which deals with three problems: - I

Hi: Could anyone help me to clarify this: are the weights normalized inside lm function (package:stats) before applied to the error term? For example: >lm (cost ~ material, weights=quatity, data=receipt) will lm normalize quatity such that sum(quatity) = 1? I traced to lm.wfit and then the weights get transferred into a precompiled FORTRAN module so I can't figure out. Thanks!

Hola a tod en s, estoy trabajando con modelos de regresión mixta con el paquete "nlme", concretamente con la función "lme". Una vez que hago mi modelo y el summary del mismo obtengo por ejemplo la significación (valor p) de la variable independiente, así como el valor del AIC para comparar mi modelo con otro similar, pero no sé cómo obtener un valor del grado de ajuste de la

Cuando hago hago una regresion linealy obtengo los valores a y b como podria ahcer para generar un vector y graficarlo junto con el vector de datos reales? gracias [[alternative HTML version deleted]]

...ll mount points by <xsl:for-each select="source"/> under /icestats. Howver now the /icestats elemets contains only source elemets which have been requested at least once. That means the list (e.g. /stats.xsl under web directory) is empty after server start. I've found out this regresion presents only in stylesheets from web directory. If I copy a stylsheet into admin directory then I get list of all mount points. I'd like note I use on-demand mount points. Is it a bug or a feature? How can I get list of all mount points in Icecast 2.3.2? -- Petr

Hola buenas a todxs, comento mi duda: Calculo la correlación entre dos variables (calculo por años que: mayor tasa de desempleo implica menos venta de coches) y me sale positiva la correlación por lo tanto tienen una relación directa. Mi duda: ¿para que esta prediccíón sea cierta, además de una correlación positiva tengo que calcular el nivel de significancia entre las dos variables? Saludos y

Hi, I´m trying to plot a nonlinear regresion with the confidence bands for the curve obtained, similar to what nlintool or nlpredci functions in Matlab does, but I no figure how to. In nls the option is there but not implemented yet. Is there a plan to implement the in a relative near future? Thanks in advance, Florencio La información...

...econtrol.com/author/carlosguadian/> El 28 de mayo de 2013 11:33, Jorge I Velez <jorgeivanvelez@gmail.com>escribió: > ?lm > ?predict.lm > > Saludos, > Jorge.- > > > 2013/5/28 towanda.sagitario <towanda.sagitario@gmail.com> > > > Cuando hago hago una regresion linealy obtengo los valores a y b como > > podria ahcer para generar un vector y graficarlo junto con el vector de > > datos reales? > > > > gracias > > > > [[alternative HTML version deleted]] > > > > _________________________________________...

...ulpas si es una tonteria. Estoy tratando de hacer unos graficos con datos recolectados cada 24 horas, con varias replicas por cada periodo de tiempo. La mejor representacion que he encontrado es hacer boxplots haciendo el tiempo una variable categorica. Sin embargo, me gustaria tener una linea de regresion, o ajuste usando splines o LOESS a travez de las medianas, pero como tengo que hacer el tiempo una variable categorica no puedo hacer el ajuste. Si esto suena demasiado disparatado, podrian por favor sugerir otras alternativas? Gracias anticipadas por su ayuda. Saludos cordiales, Gerardo [[al...

...n in the xtable library. Doing myfit <- lm(myformula, mydata) print.xtable(xtable(myfit), file="myfile") only returns the estimated coefficients and the correspondent standard erros, t-statiscs and p-values. But I wish to get a bit more, say, the number of observations used in the regresion, the R^2 and F statistics. Any suggestions? Thanks, Dimitri Szerman [[alternative HTML version deleted]]

Hi, I would like to know if anyone has information about the regresion of MSN Messenger 7.0. This program use to work until Wine 0.9.21 but from 0.9.22 it haven't worked anymore. -- Jaime Rave Torres GNU/Linux User - Ubuntu Feisty -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.winehq.org/pipermail/wine-users/attachment...

Odd problem. When trying to connect to an internet server in CS running on wine 9.0.17 I get the error "Your version does not match the servers. Please restart game". (Just to clarify, it is CS itself that throws this error) I also tried Team Fortress Classic with the same result. I can create a local game server without a problem, but can't connect to any internet game.