Data quality metrics extracted from 4u50.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": "c6a4245465af88fed672f3a596e31344",
  "space_group_name": "P 1 21 1",
  "unit_cell": {
    "a": 434.39,
    "b": 285.58,
    "c": 303.06,
    "alpha": 90.00,
    "beta": 98.99,
    "gamma": 90.00
  },
  "wavelengths": [1.00000],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [49.88,3.200],
    "number_observations": 4861213,
    "number_observations_unique": 1195096,
    "quality_factors": [
      {
        "type": "R(merge)",
        "value": 0.345
      },
      {
        "type": "R(meas)",
        "value": 0.395
      },
      {
        "type": "I/SigI",
        "value": 5.590
      },
      {
        "type": "Completeness",
        "value": 99.900
      },
      {
        "type": "Redundancy",
        "value": 4.11
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [3.300,3.200],
      "number_observations": 432366,
      "number_observations_unique": 105110,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 2.237
        },
        {
          "type": "R(meas)",
          "value": 2.554
        },
        {
          "type": "I/SigI",
          "value": 0.950
        },
        {
          "type": "Completeness",
          "value": 99.900
        }
      ]
    },
    {
      "resolution_limits": [3.400,3.300],
      "number_observations": 368042,
      "number_observations_unique": 93200,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 1.658
        },
        {
          "type": "R(meas)",
          "value": 1.908
        },
        {
          "type": "I/SigI",
          "value": 1.200
        },
        {
          "type": "Completeness",
          "value": 99.900
        }
      ]
    },
    {
      "resolution_limits": [3.500,3.400],
      "number_observations": 342628,
      "number_observations_unique": 82762,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 1.283
        },
        {
          "type": "R(meas)",
          "value": 1.466
        },
        {
          "type": "I/SigI",
          "value": 1.530
        },
        {
          "type": "Completeness",
          "value": 99.900
        }
      ]
    },
    {
      "resolution_limits": [4.000,3.500],
      "number_observations": 1226531,
      "number_observations_unique": 301106,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.740
        },
        {
          "type": "R(meas)",
          "value": 0.846
        },
        {
          "type": "I/SigI",
          "value": 2.640
        },
        {
          "type": "Completeness",
          "value": 99.900
        }
      ]
    },
    {
      "resolution_limits": [5.000,4.000],
      "number_observations": 1213829,
      "number_observations_unique": 298667,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.311
        },
        {
          "type": "R(meas)",
          "value": 0.355
        },
        {
          "type": "I/SigI",
          "value": 5.690
        },
        {
          "type": "Completeness",
          "value": 99.900
        }
      ]
    },
    {
      "resolution_limits": [10.000,5.000],
      "number_observations": 1123734,
      "number_observations_unique": 275041,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.137
        },
        {
          "type": "R(meas)",
          "value": 0.156
        },
        {
          "type": "I/SigI",
          "value": 10.730
        },
        {
          "type": "Completeness",
          "value": 99.900
        }
      ]
    },
    {
      "resolution_limits": [20.000,10.000],
      "number_observations": 136664,
      "number_observations_unique": 34666,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.052
        },
        {
          "type": "R(meas)",
          "value": 0.060
        },
        {
          "type": "I/SigI",
          "value": 21.840
        },
        {
          "type": "Completeness",
          "value": 99.600
        }
      ]
    },
    {
      "resolution_limits": [30.000,20.000],
      "number_observations": 13944,
      "number_observations_unique": 3520,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.034
        },
        {
          "type": "R(meas)",
          "value": 0.040
        },
        {
          "type": "I/SigI",
          "value": 30.590
        },
        {
          "type": "Completeness",
          "value": 98.800
        }
      ]
    },
    {
      "resolution_limits": [40.000,30.000],
      "number_observations": 2981,
      "number_observations_unique": 811,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.032
        },
        {
          "type": "R(meas)",
          "value": 0.038
        },
        {
          "type": "I/SigI",
          "value": 32.750
        },
        {
          "type": "Completeness",
          "value": 92.100
        }
      ]
    },
    {
      "resolution_limits": [50.000,40.000],
      "number_observations": 494,
      "number_observations_unique": 213,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.035
        },
        {
          "type": "R(meas)",
          "value": 0.045
        },
        {
          "type": "I/SigI",
          "value": 14.590
        },
        {
          "type": "Completeness",
          "value": 65.900
        }
      ]
    },
    {
      "resolution_limits": [49.88,50.000],
      "quality_factors": [

      ]
    }
  ]

}
  

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


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