Data quality metrics extracted from 4u4u.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": "73831af9e3c09596f815617a94cb05d0",
  "space_group_name": "P 1 21 1",
  "unit_cell": {
    "a": 435.26,
    "b": 287.54,
    "c": 304.02,
    "alpha": 90.00,
    "beta": 98.97,
    "gamma": 90.00
  },
  "wavelengths": [1.00000],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [73.99,3.000],
    "number_observations": 11042307,
    "number_observations_unique": 1468990,
    "quality_factors": [
      {
        "type": "R(merge)",
        "value": 0.295
      },
      {
        "type": "R(meas)",
        "value": 0.317
      },
      {
        "type": "I/SigI",
        "value": 7.020
      },
      {
        "type": "Completeness",
        "value": 100.000
      },
      {
        "type": "Redundancy",
        "value": 7.45
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [3.100,3.000],
      "number_observations": 1023053,
      "number_observations_unique": 137316,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 2.415
        },
        {
          "type": "R(meas)",
          "value": 2.593
        },
        {
          "type": "I/SigI",
          "value": 0.970
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [3.200,3.100],
      "number_observations": 902290,
      "number_observations_unique": 120799,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 1.544
        },
        {
          "type": "R(meas)",
          "value": 1.658
        },
        {
          "type": "I/SigI",
          "value": 1.420
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [3.300,3.200],
      "number_observations": 811788,
      "number_observations_unique": 106460,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 1.128
        },
        {
          "type": "R(meas)",
          "value": 1.209
        },
        {
          "type": "I/SigI",
          "value": 1.890
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [3.400,3.300],
      "number_observations": 690765,
      "number_observations_unique": 94313,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.910
        },
        {
          "type": "R(meas)",
          "value": 0.979
        },
        {
          "type": "I/SigI",
          "value": 2.330
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [3.500,3.400],
      "number_observations": 641158,
      "number_observations_unique": 83988,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.729
        },
        {
          "type": "R(meas)",
          "value": 0.781
        },
        {
          "type": "I/SigI",
          "value": 2.920
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [3.600,3.500],
      "number_observations": 573688,
      "number_observations_unique": 74810,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.588
        },
        {
          "type": "R(meas)",
          "value": 0.630
        },
        {
          "type": "I/SigI",
          "value": 3.560
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [3.800,3.600],
      "number_observations": 940854,
      "number_observations_unique": 127089,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.460
        },
        {
          "type": "R(meas)",
          "value": 0.495
        },
        {
          "type": "I/SigI",
          "value": 4.490
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [4.000,3.800],
      "number_observations": 787266,
      "number_observations_unique": 103032,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.341
        },
        {
          "type": "R(meas)",
          "value": 0.366
        },
        {
          "type": "I/SigI",
          "value": 6.050
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [4.200,4.000],
      "number_observations": 627356,
      "number_observations_unique": 84277,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.280
        },
        {
          "type": "R(meas)",
          "value": 0.301
        },
        {
          "type": "I/SigI",
          "value": 7.280
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [4.400,4.200],
      "number_observations": 528993,
      "number_observations_unique": 69761,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.239
        },
        {
          "type": "R(meas)",
          "value": 0.257
        },
        {
          "type": "I/SigI",
          "value": 8.540
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [4.600,4.400],
      "number_observations": 448223,
      "number_observations_unique": 58103,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.212
        },
        {
          "type": "R(meas)",
          "value": 0.227
        },
        {
          "type": "I/SigI",
          "value": 9.820
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [5.000,4.600],
      "number_observations": 669847,
      "number_observations_unique": 90224,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.184
        },
        {
          "type": "R(meas)",
          "value": 0.198
        },
        {
          "type": "I/SigI",
          "value": 11.030
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [8.000,5.000],
      "number_observations": 1827158,
      "number_observations_unique": 240537,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.141
        },
        {
          "type": "R(meas)",
          "value": 0.152
        },
        {
          "type": "I/SigI",
          "value": 14.200
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [10.000,8.000],
      "number_observations": 280606,
      "number_observations_unique": 38073,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.099
        },
        {
          "type": "R(meas)",
          "value": 0.106
        },
        {
          "type": "I/SigI",
          "value": 19.560
        },
        {
          "type": "Completeness",
          "value": 100.000
        }
      ]
    },
    {
      "resolution_limits": [50.000,10.000],
      "number_observations": 288440,
      "number_observations_unique": 39996,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.068
        },
        {
          "type": "R(meas)",
          "value": 0.073
        },
        {
          "type": "I/SigI",
          "value": 23.570
        },
        {
          "type": "Completeness",
          "value": 99.900
        }
      ]
    },
    {
      "resolution_limits": [75.000,50.000],
      "number_observations": 822,
      "number_observations_unique": 212,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.069
        },
        {
          "type": "R(meas)",
          "value": 0.081
        },
        {
          "type": "I/SigI",
          "value": 19.060
        },
        {
          "type": "Completeness",
          "value": 87.200
        }
      ]
    },
    {
      "resolution_limits": [73.99,75.000],
      "quality_factors": [

      ]
    }
  ]

}
  

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


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