Data quality metrics extracted from 4u4o.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": "06fe17d9b99d9bfc458997a7a239d1a2",
  "space_group_name": "P 1 21 1",
  "unit_cell": {
    "a": 437.00,
    "b": 286.75,
    "c": 305.18,
    "alpha": 90.00,
    "beta": 99.24,
    "gamma": 90.00
  },
  "wavelengths": [1.00000],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [135.58,3.600],
    "number_observations": 12887521,
    "number_observations_unique": 855160,
    "quality_factors": [
      {
        "type": "R(merge)",
        "value": 0.517
      },
      {
        "type": "R(meas)",
        "value": 0.535
      },
      {
        "type": "I/SigI",
        "value": 5.770
      },
      {
        "type": "Completeness",
        "value": 100.000
      },
      {
        "type": "Redundancy",
        "value": 13.52
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [3.700,3.600],
      "number_observations": 909240,
      "number_observations_unique": 67248,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 3.303
        },
        {
          "type": "R(meas)",
          "value": 3.432
        },
        {
          "type": "I/SigI",
          "value": 0.960
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [3.800,3.700],
      "number_observations": 790894,
      "number_observations_unique": 60417,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 2.535
        },
        {
          "type": "R(meas)",
          "value": 2.637
        },
        {
          "type": "I/SigI",
          "value": 1.250
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [3.900,3.800],
      "number_observations": 724202,
      "number_observations_unique": 54410,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 1.960
        },
        {
          "type": "R(meas)",
          "value": 2.038
        },
        {
          "type": "I/SigI",
          "value": 1.620
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [4.000,3.900],
      "number_observations": 670605,
      "number_observations_unique": 49017,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 1.627
        },
        {
          "type": "R(meas)",
          "value": 1.689
        },
        {
          "type": "I/SigI",
          "value": 1.960
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [4.100,4.000],
      "number_observations": 601161,
      "number_observations_unique": 44429,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 1.360
        },
        {
          "type": "R(meas)",
          "value": 1.413
        },
        {
          "type": "I/SigI",
          "value": 2.350
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [4.200,4.100],
      "number_observations": 528223,
      "number_observations_unique": 40286,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 1.177
        },
        {
          "type": "R(meas)",
          "value": 1.225
        },
        {
          "type": "I/SigI",
          "value": 2.690
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [4.400,4.200],
      "number_observations": 939441,
      "number_observations_unique": 70028,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.965
        },
        {
          "type": "R(meas)",
          "value": 1.003
        },
        {
          "type": "I/SigI",
          "value": 3.280
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [4.600,4.400],
      "number_observations": 799825,
      "number_observations_unique": 58446,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.760
        },
        {
          "type": "R(meas)",
          "value": 0.790
        },
        {
          "type": "I/SigI",
          "value": 4.180
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [5.000,4.600],
      "number_observations": 1199244,
      "number_observations_unique": 90587,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.586
        },
        {
          "type": "R(meas)",
          "value": 0.610
        },
        {
          "type": "I/SigI",
          "value": 5.270
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [10.000,5.000],
      "number_observations": 4902982,
      "number_observations_unique": 279787,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.465
        },
        {
          "type": "R(meas)",
          "value": 0.478
        },
        {
          "type": "I/SigI",
          "value": 9.420
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [50.000,10.000],
      "number_observations": 820625,
      "number_observations_unique": 40190,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.167
        },
        {
          "type": "R(meas)",
          "value": 0.171
        },
        {
          "type": "I/SigI",
          "value": 20.160
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [100.000,50.000],
      "number_observations": 999,
      "number_observations_unique": 287,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.049
        },
        {
          "type": "R(meas)",
          "value": 0.057
        },
        {
          "type": "I/SigI",
          "value": 10.620
        },
        {
          "type": "Completeness",
          "value": 93.200
        }
      ]
    },
    {
      "resolution_limits": [150.000,100.000],
      "number_observations": 80,
      "number_observations_unique": 28,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.067
        },
        {
          "type": "R(meas)",
          "value": 0.077
        },
        {
          "type": "I/SigI",
          "value": 3.160
        },
        {
          "type": "Completeness",
          "value": 80.000
        }
      ]
    },
    {
      "resolution_limits": [135.58,150.000],
      "quality_factors": [

      ]
    }
  ]

}
  

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


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