search for: y21

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2006 Aug 25
horizontal direct product
...rix product function called the horizontal direct product (*~), which is some sort of variant on the Kronecker product. For example if x is 2x2 and y is 2x2 the horizontal direct product, z, of x and y is defined (in the Gauss manual) as: row 1 = x11*y11 x11*y12 x12*y11 x12*y12 row 2 = x21*y21 x21*y22 x22*y21 x22*y22 Or in R code if: x <- matrix(seq(1,4,by=1),2,2, byrow=TRUE) y <- matrix(seq(5,8,by=1),2,2, byrow=TRUE) The resulting matrix, if I had an operator, would be the following matrix z, here formed in a contrived manner: z.1 <- c(5, 6, 10, 12) z.2 <- c(21,24,28,3...
2003 Jul 07
P-value for F from summary.lm (was RE: (no subject))
...t; the F-test, respectively p-value, shown in the summary of a > linear model? somehow i can not retrieve this data out of R+ > into my sql-dataset. i can get all other data shown with the command: > summary(speciallinearmodel) - will have a gui screen > > Call: > lm(formula = y21 ~ x4 + x18 + x4:x18, data = > clustertransformationstabelle) > Residuals: > Min 1Q Median 3Q Max > -0.20915 -0.07354 -0.01823 0.04414 0.45191 > Coefficients: > Estimate Std. Error t value Pr(>|t|) > (Intercept) -0.003613 0.043142 -0.084 0.93345...
2000 Aug 14
Writing a workable function
After searching in R- Introduction, FAQ, help... I don't understand this: I write a function in a file (.R): tt <- function(mc) { date() mc<-read.csv2("machines.txt",na.strings="") date() } I source it in R and I type tt(). The answer is > tt() [1] "Mon Aug 14 11:18:25 2000" > The instructions following the first "date()" are ignored. Why?
2018 May 10
Modèle à Equations structurelles
In my previous mail, I was asking help to fit structural equations models by using Partial Least Square (PLS) approch.I have used package plspm. I want to know how to manage moderating and mediating variables. I also want to show simultanously the graph of internal model and measurement model. Thks. Le jeudi 10 mai 2018 ? 15:42:46 UTC, Michael Dewey <lists at> a ?crit :
2018 May 10
Modèle à Equations structurelles
Bonjour, Quelqu'un pourrait m'aider avec le code R pour estimer les mod?les ? ?quations structurelles via l'approche PLS,int?grer des variables mod?ratrices et m?diatrices et afficher les graphique simultan? des mod?les interne et de mesure? Cdt. [[alternative HTML version deleted]]