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Hi everybody, it's a technical question . i have a matrix with 30 columns and 40000 rows, i start my program and i found this error: "error in solve.default(sBB + Z[,,i] %*% Gamma %*% t(Z[,,i])): system is computationally...
Hello, I have a little problem, very simple, but i can't solve it. I have a list of files I have a function I want that the function take files one to one (the results is a matrix (1...
hi everybody, i try to extract a part of name to a date : like : "VGT1_VGT2_CONTR_B020030401.H0V0.MIR" to "20030401" but the beginning of the files changes i have a list of files: [,1] [1,] "VGT1_CONTR_B020020301...
hello everybody, i want to extract the name of the rows for the value = "TRUE" these names give for the next program a list of file i try many functions, and indexation but no solution give to me, i transform...
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