Data quality metrics extracted from 4u26.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": "51befdbdf13591e33b1640144c922a8e",
  "space_group_name": "P 21 21 21",
  "unit_cell": {
    "a": 211.26,
    "b": 432.34,
    "c": 621.39,
    "alpha": 90.0,
    "beta": 90.0,
    "gamma": 90.0
  },
  "wavelengths": [1.10000],
  "anisotropic_diffraction": false,
  "overall_refln_statistics": {
    "resolution_limits": [70,2.800],
    "number_observations": 3948328,
    "number_observations_unique": 1296827,
    "quality_factors": [
      {
        "type": "R(merge)",
        "value": 0.136
      },
      {
        "type": "R(meas)",
        "value": 0.159
      },
      {
        "type": "I/SigI",
        "value": 6.620
      },
      {
        "type": "Completeness",
        "value": 94.100
      },
      {
        "type": "Redundancy",
        "value": 3.2
      }
    ]
  },
  "refln_shells": [
    {
      "resolution_limits": [2.900,2.800],
      "number_observations": 304946,
      "number_observations_unique": 120009,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 1.191
        },
        {
          "type": "R(meas)",
          "value": 1.432
        },
        {
          "type": "I/SigI",
          "value": 0.560
        },
        {
          "type": "Completeness",
          "value": 87.600
        }
      ]
    },
    {
      "resolution_limits": [3.000,2.900],
      "number_observations": 275442,
      "number_observations_unique": 105945,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.805
        },
        {
          "type": "R(meas)",
          "value": 0.964
        },
        {
          "type": "I/SigI",
          "value": 0.870
        },
        {
          "type": "Completeness",
          "value": 88.800
        }
      ]
    },
    {
      "resolution_limits": [3.100,3.000],
      "number_observations": 249375,
      "number_observations_unique": 93882,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.567
        },
        {
          "type": "R(meas)",
          "value": 0.677
        },
        {
          "type": "I/SigI",
          "value": 1.350
        },
        {
          "type": "Completeness",
          "value": 89.900
        }
      ]
    },
    {
      "resolution_limits": [3.200,3.100],
      "number_observations": 225640,
      "number_observations_unique": 83690,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.425
        },
        {
          "type": "R(meas)",
          "value": 0.505
        },
        {
          "type": "I/SigI",
          "value": 1.960
        },
        {
          "type": "Completeness",
          "value": 91.000
        }
      ]
    },
    {
      "resolution_limits": [3.400,3.200],
      "number_observations": 392168,
      "number_observations_unique": 142391,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.319
        },
        {
          "type": "R(meas)",
          "value": 0.377
        },
        {
          "type": "I/SigI",
          "value": 2.840
        },
        {
          "type": "Completeness",
          "value": 93.100
        }
      ]
    },
    {
      "resolution_limits": [3.700,3.400],
      "number_observations": 470594,
      "number_observations_unique": 163351,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.238
        },
        {
          "type": "R(meas)",
          "value": 0.280
        },
        {
          "type": "I/SigI",
          "value": 4.320
        },
        {
          "type": "Completeness",
          "value": 95.000
        }
      ]
    },
    {
      "resolution_limits": [4.000,3.700],
      "number_observations": 362597,
      "number_observations_unique": 119257,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.188
        },
        {
          "type": "R(meas)",
          "value": 0.220
        },
        {
          "type": "I/SigI",
          "value": 6.330
        },
        {
          "type": "Completeness",
          "value": 95.900
        }
      ]
    },
    {
      "resolution_limits": [6.000,4.000],
      "number_observations": 1135229,
      "number_observations_unique": 327190,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.125
        },
        {
          "type": "R(meas)",
          "value": 0.144
        },
        {
          "type": "I/SigI",
          "value": 11.230
        },
        {
          "type": "Completeness",
          "value": 98.100
        }
      ]
    },
    {
      "resolution_limits": [10.000,6.000],
      "number_observations": 405582,
      "number_observations_unique": 110222,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.072
        },
        {
          "type": "R(meas)",
          "value": 0.083
        },
        {
          "type": "I/SigI",
          "value": 16.910
        },
        {
          "type": "Completeness",
          "value": 99.100
        }
      ]
    },
    {
      "resolution_limits": [20.000,10.000],
      "number_observations": 105885,
      "number_observations_unique": 27009,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.046
        },
        {
          "type": "R(meas)",
          "value": 0.052
        },
        {
          "type": "I/SigI",
          "value": 22.750
        },
        {
          "type": "Completeness",
          "value": 98.500
        }
      ]
    },
    {
      "resolution_limits": [50.000,20.000],
      "number_observations": 20252,
      "number_observations_unique": 3758,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.031
        },
        {
          "type": "R(meas)",
          "value": 0.034
        },
        {
          "type": "I/SigI",
          "value": 28.630
        },
        {
          "type": "Completeness",
          "value": 97.000
        }
      ]
    },
    {
      "resolution_limits": [70.000,50.000],
      "number_observations": 618,
      "number_observations_unique": 123,
      "quality_factors": [
        {
          "type": "R(merge)",
          "value": 0.034
        },
        {
          "type": "R(meas)",
          "value": 0.037
        },
        {
          "type": "I/SigI",
          "value": 26.940
        },
        {
          "type": "Completeness",
          "value": 64.400
        }
      ]
    },
    {
      "resolution_limits": [70,70.000],
      "quality_factors": [

      ]
    }
  ]

}
  

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


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