Data quality metrics extracted from 6k4j.cif.gz by aB_cif2table1 from BUSTER (Global Phasing Ltd.). See also the PDBx/mmCIF dictionary.

Raw JSON data
{
  "mxlims_type": "ReflectionSet",
  "version": "0.2.2",
  "uuid": "58988be5a45d068c87785a6b46784bcb",
  "space_group_name": "C 2 2 21",
  "unit_cell": {
    "a": 45.18,
    "b": 125.21,
    "c": 129.40,
    "alpha": 90.0,
    "beta": 90.0,
    "gamma": 90.0
  },
  "wavelengths": [1.00000],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [42.498,2.700],
    "number_observations": 604284,
    "number_observations_unique": 10431,
    "quality_factors": [
      {
        "type": "R(merge)",
        "value": 0.0513
      },
      {
        "type": "R(meas)",
        "value": 0.518
      },
      {
        "type": "I/SigI",
        "value": 15.830
      },
      {
        "type": "Completeness",
        "value": 100.000
      },
      {
        "type": "Redundancy",
        "value": 57.932
      },
      {
        "type": "CC(1/2)",
        "value": 0.998
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [2.860,2.700],
      "number_observations": 97042,
      "number_observations_unique": 1623,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 3.135
        },
        {
          "type": "R(meas)",
          "value": 3.162
        },
        {
          "type": "I/SigI",
          "value": 1.700
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 59.792
        },
        {
          "type": "CC(1/2)",
          "value": 0.513
        }
      ]
    },
    {
      "resolution_limits": [3.060,2.860],
      "number_observations": 92409,
      "number_observations_unique": 1567,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 2.521
        },
        {
          "type": "R(meas)",
          "value": 2.543
        },
        {
          "type": "I/SigI",
          "value": 2.330
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 58.972
        },
        {
          "type": "CC(1/2)",
          "value": 0.754
        }
      ]
    },
    {
      "resolution_limits": [3.310,3.060],
      "number_observations": 86650,
      "number_observations_unique": 1503,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 1.632
        },
        {
          "type": "R(meas)",
          "value": 1.646
        },
        {
          "type": "I/SigI",
          "value": 3.680
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 57.651
        },
        {
          "type": "CC(1/2)",
          "value": 0.895
        }
      ]
    },
    {
      "resolution_limits": [3.620,3.310],
      "number_observations": 74245,
      "number_observations_unique": 1301,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.920
        },
        {
          "type": "R(meas)",
          "value": 0.928
        },
        {
          "type": "I/SigI",
          "value": 7.230
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 57.068
        },
        {
          "type": "CC(1/2)",
          "value": 0.965
        }
      ]
    },
    {
      "resolution_limits": [4.050,3.620],
      "number_observations": 71508,
      "number_observations_unique": 1240,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.417
        },
        {
          "type": "R(meas)",
          "value": 0.421
        },
        {
          "type": "I/SigI",
          "value": 16.660
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 57.668
        },
        {
          "type": "CC(1/2)",
          "value": 0.991
        }
      ]
    },
    {
      "resolution_limits": [4.670,4.050],
      "number_observations": 64572,
      "number_observations_unique": 1080,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.223
        },
        {
          "type": "R(meas)",
          "value": 0.225
        },
        {
          "type": "I/SigI",
          "value": 30.980
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 59.789
        },
        {
          "type": "CC(1/2)",
          "value": 0.998
        }
      ]
    },
    {
      "resolution_limits": [5.720,4.670],
      "number_observations": 53551,
      "number_observations_unique": 940,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.186
        },
        {
          "type": "R(meas)",
          "value": 0.188
        },
        {
          "type": "I/SigI",
          "value": 34.270
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 56.969
        },
        {
          "type": "CC(1/2)",
          "value": 0.998
        }
      ]
    },
    {
      "resolution_limits": [8.080,5.720],
      "number_observations": 39282,
      "number_observations_unique": 739,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.153
        },
        {
          "type": "R(meas)",
          "value": 0.154
        },
        {
          "type": "I/SigI",
          "value": 38.960
        },
        {
          "type": "Completeness",
          "value": 100.000
        },
        {
          "type": "Redundancy",
          "value": 53.156
        },
        {
          "type": "CC(1/2)",
          "value": 0.999
        }
      ]
    },
    {
      "resolution_limits": [42.498,8.080],
      "number_observations": 25025,
      "number_observations_unique": 438,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.097
        },
        {
          "type": "R(meas)",
          "value": 0.098
        },
        {
          "type": "I/SigI",
          "value": 65.520
        },
        {
          "type": "Completeness",
          "value": 99.100
        },
        {
          "type": "Redundancy",
          "value": 57.135
        },
        {
          "type": "CC(1/2)",
          "value": 0.999
        }
      ]
    }
  ]

}
  

Table 1 generated from MXLIMS-JSON (via JavaScript):


Binned data generated from MXLIMS-JSON (via JavaScript):