Question

我在csv文件上有大量行，如下所示：

name a,1
name b,1
name c,1
name d,2
name e,2

我需要根据数字连接行。结果应该是：

name a|name b|name c
name d|name e

如何在Google优化或Excel / Google电子表格中执行此操作？

我正在考虑它，但没有解决方案。

非常感谢你！

Answer 1

如果你可以使用Python，那么进行这种操作会很容易。在下面的代码中，从“input.csv”读取名称和组，并将分组的名称（以及组）写入“output.csv”。 defaultdict用于创建用于存储组成员的空列表。

import collections
import csv

grouped = collections.defaultdict(list)
with open('input.csv') as fp:
    reader = csv.reader(fp)
    for row in reader:
        name, group = row
        grouped[group].append(name)


with open('output.csv', 'w', newline='') as fp:
    writer = csv.writer(fp, delimiter='|')
    for key in sorted(grouped.keys()):
        writer.writerow([key] + grouped[key])

Answer 2

以下是Open refine的提案。我使用的唯一Grel公式是：

row.record.cells['myColumn'].value.join('|')

screencast

这是JSOn，假设你的第一列被命名为＃34; myColumn＆＃34;和第二个＆＃34;数字＆＃34; ：

[
  {
    "op": "core/column-addition",
    "description": "Create column test at index 2 based on column number using expression grel:value",
    "engineConfig": {
      "mode": "row-based",
      "facets": [
        {
          "omitError": false,
          "expression": "isBlank(value)",
          "selectBlank": false,
          "selection": [
            {
              "v": {
                "v": false,
                "l": "false"
              }
            }
          ],
          "selectError": false,
          "invert": false,
          "name": "ee",
          "omitBlank": false,
          "type": "list",
          "columnName": "ee"
        }
      ]
    },
    "newColumnName": "test",
    "columnInsertIndex": 2,
    "baseColumnName": "number",
    "expression": "grel:value",
    "onError": "set-to-blank"
  },
  {
    "op": "core/column-move",
    "description": "Move column test to position 0",
    "columnName": "test",
    "index": 0
  },
  {
    "op": "core/blank-down",
    "description": "Blank down cells in column test",
    "engineConfig": {
      "mode": "row-based",
      "facets": [
        {
          "omitError": false,
          "expression": "isBlank(value)",
          "selectBlank": false,
          "selection": [
            {
              "v": {
                "v": false,
                "l": "false"
              }
            }
          ],
          "selectError": false,
          "invert": false,
          "name": "ee",
          "omitBlank": false,
          "type": "list",
          "columnName": "ee"
        }
      ]
    },
    "columnName": "test"
  },
  {
    "op": "core/column-addition",
    "description": "Create column concatenation at index 2 based on column myColumn using expression grel:row.record.cells['myColumn'].value.join('|')",
    "engineConfig": {
      "mode": "row-based",
      "facets": [
        {
          "omitError": false,
          "expression": "isBlank(value)",
          "selectBlank": false,
          "selection": [
            {
              "v": {
                "v": false,
                "l": "false"
              }
            }
          ],
          "selectError": false,
          "invert": false,
          "name": "ee",
          "omitBlank": false,
          "type": "list",
          "columnName": "ee"
        }
      ]
    },
    "newColumnName": "concatenation",
    "columnInsertIndex": 2,
    "baseColumnName": "myColumn",
    "expression": "grel:row.record.cells['myColumn'].value.join('|')",
    "onError": "set-to-blank"
  }
]

根据数字连接行（Google Refine，Excel / Google Spreadsheet）

2 个答案: