search for: xmat2

Hi, I have a matrix and time series "xmat". I have no problem executing any matrix functions except t(xmat) which gives the following error message. My question if "xmat" is a matrix why I can not execute this matrix function?? converting the time series and matrix into a data frame solves the problem >dim(xmat) [1] 98 7 > t(xmat) Error in "tsp<-"(*tmp*,

...ght? does the above sentence refer to p.value or F.value? I do not know, please help me! And how can I get the F.value? About this sentence "A further 367 columns with variance below 1.0 kcal/mol were removed as recommended,16 leaving 23 columns." my code below: xmat3<-xmat2[,apply(xmat2,2,function(.col)!all(var(.col)<1))], can I change the var to sd? I have tried it. They have the same result, generally speaking? which one will be used to see the variation of the data? Thank you! kevin -- View this message in context: http://old.nabble.com/p.value---OR---F.val...

...n the coefficients (i.e., that the â1 in all equations is the same value, and the same for all the other coefficients). When I try to run the model without the restricting equations (C2, C3) it runs just fine, but when I add these two equations I get the error: "Error in solve(xtOmegaInv %*% xMat2, xtOmegaInv %*% yVec, tol = solvetol) : cs_lu(A) failed: near-singular A (or out of memory)" Any ideas on what the problem might be? All the best, Rui Neiva P.S.: I've also posted this question on the Matrix help forum, but since I do not know how active that forum is I've decided...