[R] Error in solve.default(object$hessian)

I have the problem use R Error in solve.default(object$hessian) system is computationally singular: reciprocal condition number = 1.42892e-30 what is the problem ?and what it means help me -- [[alternative HTML version deleted]] __ R-help@r-

[R] CopyDetect Packgace

Dear All x <- CopyDetect2 (data = data.abcd, item.par = slopintrc, pair = c (pairs [i, 1], pairs [i, 2]), options = c ("A", "B", "C", "D", "E")) What is the mean pair = c (pairs [i, 1], pairs [i, 2]), Pleas Help Me

[R] Problem detect cheating with CopyDetect Package

Dear All list members, Please Help me I have the problem detect cheating analysis with use of CopyDetect Package I use my own data namely data.abcd and slopintrc and when I tried to count by R studio with a script for (i in 1: replication) { x <- CopyDetect2 (data = data.abcd,