calcFX {ACCLMA} | R Documentation |
Calculate the F(X) of each obseravtion by summing the F(X) of the previous observation with the weight of the current observation, should be used only after the calcWeights has been used on the source matrix
calcFX(mat)
mat |
A data set that has the X,Y,Weight columns after calcWeights and reduceSameXs has been used on it |
Return a data set with the F(X) column calculated
Tal Carmi,Liat Gaziel
d <- c(1,1,3,4) e <- c(5,6,7,8) f <- c(1,1,1,1) mydata <- data.frame(d,e,f) names(mydata) <- c("X","Y","Weight") mydata<-calcWeights(mydata) mydata<-averageSameXs(mydata) calcFX(mydata) ## The function is currently defined as function (mat) { mat[1, 4] = mat[1, 3] n <- size(mat) for (i in 2:n) { mat[i, 4] = mat[i - 1, 4] + mat[i, 3] } names(mat)[4] <- "FX" return(mat) }