抱歉,我想这是以前被问过的,但是我很难找到它。也许我对它的描述很差。我需要覆盖数据框中的一些值。
我有以下输入内容:
input = structure(list(a.Date = c("19-Sep-18", "19-Sep-18", "18-Mar-19",
"18-Mar-19", "7-Dec-18", "2-Aug-18", "15-Aug-18", "8-Mar-19",
"21-Dec-18", "29-Jul-19"), Name = c("Frank", "Gene", "Simon",
"Bob", "Bill", "Tony", "Scott", "Angela", "Millie", "Fred"),
a.Result = c(381, 84, 851, 550, 87, 922, 59, 912, 603, 113
), Rank = c(1L, 2L, 4L, 3L, 5L, 8L, 6L, 7L, 9L, 10L), b.Result = c(891,
525, 795, 697, 351, 724, 341, 615, 395, 229), b.Date = c("19-Sep-18",
"19-Sep-18", "18-Mar-19", "18-Mar-19", "7-Dec-18", "2-Aug-18",
"15-Aug-18", "8-Mar-19", "21-Dec-18", "29-Jul-19"), c.Result = c(931,
462, 323, 936, 996, 26, 93, 820, 468, 265), c.Date = c("19-Sep-18",
"19-Sep-18", "18-Mar-19", "18-Mar-19", "7-Dec-18", "2-Aug-18",
"15-Aug-18", "8-Mar-19", "21-Dec-18", "29-Jul-19")), class = "data.frame", row.names = c(NA,
-10L))
我有这些替换值:
replace = structure(list(X = structure(17786, class = "Date"), Bill = -2081.568737826), row.names = 1L, class = "data.frame")
我正在尝试获得以下输出:
output = structure(list(a.Date = c("19-Sep-18", "19-Sep-18", "18-Mar-19",
"18-Mar-19", "7-Dec-18", "2-Aug-18", "15-Aug-18", "8-Mar-19",
"21-Dec-18", "29-Jul-19"), Name = c("Frank", "Gene", "Simon",
"Bob", "Bill", "Tony", "Scott", "Angela", "Millie", "Fred"),
a.Result = c(381, 84, 851, 550, 87, 922, 59, 912, 603, 113
), Rank = c(1L, 2L, 4L, 3L, 5L, 8L, 6L, 7L, 9L, 10L), b.Result = c(891,
525, 795, 697, 351, 724, 341, 615, 395, 229), b.Date = c("19-Sep-18",
"19-Sep-18", "18-Mar-19", "18-Mar-19", "7-Dec-18", "2-Aug-18",
"15-Aug-18", "8-Mar-19", "21-Dec-18", "29-Jul-19"), c.Result = c("931.00",
"462.00", "323.00", "936.00", "-2,081.57", "26.00", "93.00",
"820.00", "468.00", "265.00"), c.Date = c("19-Sep-18", "19-Sep-18",
"18-Mar-19", "18-Mar-19", "12-Sep-18", "2-Aug-18", "15-Aug-18",
"8-Mar-19", "21-Dec-18", "29-Jul-19")), class = "data.frame", row.names = c(NA,
-10L))
我用“替换”数据框替换了几个值。
我尝试使用match函数来定位要替换的单元格,但是我无法使其正常工作。谁能指出我正确的方向?
答案 0 :(得分:2)
我们可以用<input type="hidden" name="_token" value="{{ csrf_token() }}">
match
replace
中的列名。在input$Name
中更改日期的format
,并更新replace
数据框。
input