Plot whiskers

[ottapav]

1) When plotting primal_residual, and similarly for dual_residual, the plots have whiskers (see end of the orange line on the plot below).

2) When typing: python qpsolvers_benchmark\benchmark.py maros_meszaros_dense plot dual_residual high_accuracy --solvers ecos cvxopt scs osqp qpSWIFT the qpSWIFT data are missing due to case sensitivity with no warning. Maybe the data plot could be insensitive to the letter cases.

[stephane-caron]

I can reproduce the whiskers :cat:

$ ./benchmark.py maros_meszaros_dense plot primal_residual high_accuracy                        

[stephane-caron]

After fix:

[stephane-caron]

As a matter of fact, I think it makes sense to trim solutions that don't respect the tolerance requirement. Follow-up in https://github.com/qpsolvers/qpsolvers_benchmark/pull/54.

[stephane-caron]

@ottapav Whoops, almost missed your second point. Feel free to open separate issues. Let me move it to https://github.com/qpsolvers/qpsolvers_benchmark/issues/55.