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...quot; [4,] "VGT1_VGT2_CONTR_B020030711.H0V0.MIR" [5,] "VGT1_VGT2_CONTR_B020031211.H0V0.MIR" i try the function "get()" and "assign()" but without succeed i know it's easy in C but in R i don't know the way if you have an idee thanks , Jonathan Charrier

...s is a matrix (1 file (the values) for 1 column)) I used some functions (like apply, lapply and more) but in each case, i have a warning message : "only first element of `description' argument used " it takes only the first file... if someone have an idea Thanks a lot Jonathan Charrier

...tion . 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 singular: reciprocal condition number = 7.6377e-018 " is it R limit? thanks a lot. Jonathan Charrier