Question

我正在导入文件并尝试仅显示每行中的数字，并带有逗号或标签。使用以下代码，我的输出如下：

mydata <- read.table("/home/mukhera3/Desktop/Test/part-r-00000", sep=",")
mydata

输出

1       0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0
     V461 V462 V463 V464 V465 V466 V467 V468 V469 V470 V471 V472 V473 V474 V475 V476 V477 V478 V479 V480 V481 V482 V483
1       0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0
     V484 V485 V486 V487 V488 V489 V490 V491 V492 V493 V494 V495 V496 V497 V498 V499 V500 V501 V502 V503 V504 V505 V506
1       0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0
     V507 V508 V509 V510 V511 V512 V513 V514 V515 V516 V517 V518 V519 V520 V521 V522 V523 V524 V525 V526 V527 V528 V529
1       0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0
     V530 V531 V532 V533 V534 V535 V536 V537 V538 V539 V540 V541 V542 V543 V544 V545 V546 V547 V548 V549 V550 V551 V552
1       0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0    0
     V553 V554 V555 V556 V557 V558 V559 V560 V561 V562 V563 V564 V565 V566 V567 V568 V569 V570 V571 V572 V573 V574 V575

当我用空格（sep =“”）替换sep的“，”时，保持其他所有内容相同。这就是我得到的：

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0

我想显示数字0,1 ..没有任何逗号或其他行号等。我是R编程的新手，并且不知道如何做到这一点。任何帮助将不胜感激。

Answer 1

如果您希望将文件直接作为矢量而不是数据帧读取，则可以使用scan代替read.table。示例文件在我的工作目录中保存为a.txt的示例：

> mydata <- scan(file="a.txt",sep=",")
Read 46 items
> mydata
 [1] 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0

您还可以通过以下其他步骤从read.table获取结果：

> mydata <- read.table("a.txt",sep=",") # Reads your file as a data.frame
> mydata <- unlist(mydata) # Transforms into a named vector
> names(mydata) <- NULL # Gets rid of the names
> mydata
 [1] 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0

如果你只想＆＃34;显示＆＃34;这样，但不想改变你桌子的性质，你可以简单地使用cat（与unlist结合）：

> mydata <- read.table("a.txt",sep=",")
> cat(unlist(mydata))
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0

从R中导入的文件中删除标签

1 个答案: