将行折叠到每个集合中最低的完整行

Question

我正在清理一个巨大的数据集，它来自于在PDF上使用qazxsw poi。

这些列被正确描绘，但是我有很多行，其中原始的一个单元格是巨大的，而tabulizer()将其读取为多行，除了大的单元格外，所有单元格都是空白的。我需要折叠数据框，以便将行“向下”折叠到最低的完整行。

以下是数据外观的示例：tabulizer

第一次看到，这些“额外行”出现的列因行而异（在一种情况下，它是，在其他情况下是species。我想将它们折叠成完整行，这样第1行保持不变，第2行是实际上行2：6折叠，第7行完好无损等等。我甚至不知道R是否是最适合使用的工具，但如果有area.of.operation解决方案，我会很高兴。示例数据框如下。

先感谢您。

dplyr

Answer 1

旧的qazxsw poi-qazxsw poi-ting stratagem将每个栏目粘贴在崩溃=“，”然后

  mydata <-  structure(list(X = c(1L, 2L, 3L, 4L, 5L, 6L, 7L, 11L, 12L, 13L, 
17L), target.species = structure(c(4L, 1L, 1L, 1L, 1L, 5L, 4L, 
1L, 1L, 2L, 3L), .Label = c("", "hake", "hake, southern", "rosefish", 
"squid, cuttlefish,"), class = "factor"), gear = structure(c(2L, 
1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 3L, 2L), .Label = c("", "trawl, bottom", 
"trawl, midwater"), class = "factor"), number.boats = structure(c(2L, 
1L, 1L, 1L, 1L, 3L, 5L, 1L, 1L, 4L, 4L), .Label = c("", "18 vessels", 
"98 refrigerated high", "none provided", "seas vessels"), class = "factor"), 
    company = structure(c(2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 
    2L, 2L), .Label = c("", "not applicable"), class = "factor"), 
    area.of.operation = structure(c(2L, 1L, 1L, 1L, 3L, 4L, 2L, 
    3L, 4L, 2L, 5L), .Label = c("", "above provinces", "annual fishery; EEZ", 
    "concentrated around", "deepwater coastal"), class = "factor"), 
    species = structure(c(6L, 3L, 4L, 5L, 9L, 8L, 7L, 9L, 8L, 
    1L, 2L), .Label = c("Fur seal", "none provided", "otter", 
    "otter, river", "porpoise", "seal", "Seal", "South American Sea lion,", 
    "spectacled porpoise,"), class = "factor"), estimates = structure(c(2L, 
    1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 2L), .Label = c("", "none"
    ), class = "factor")), class = "data.frame", row.names = c(NA, 
-11L))

-out the the extra commas to get you most way：

cumsum