remove

Struggling to remove rows from my dataframe

由 巧了我就是萌 提交于 2021-01-29 11:05:02
问题 I've been Googling and reading this site, and I know folks say that, in general, if you're iterating over a Dataframe, you're likely doing it wrong. So, I figure I'm doing it wrong. The challenge I'm presented with is that I need to make decisions on what to keep versus what to discard based on logic. Best explained with an example. Say my Dataframe looks like: SO_NUMBER ITEM # SALES_QTY PO_NUMBER PO_QTY PO_PRICE ENOUGH_TO_FILL -----------------------------------------------------------------

How to remove a document inside an array in mongodb using $pull

由 限于喜欢 提交于 2021-01-29 05:29:45
问题 I have the following document structure { "_id" : ObjectId("5ffef283f1f06ff8524aa2c2"), "applicationName" : "TestApp", "pName" : "", "environments" : [], "stages" : [], "createdAt" : ISODate("2021-01-15T09:51:35.546Z"), "workflows" : [ [ { "pName" : "Test1", "wName" : "TestApp_Test1", "agent" : "" }, { "pName" : "Test2", "wName" : "TestApp_Test2", "agent" : "" } ], [ { "pName" : "Test1", "wName" : "TestApp_Test1", "agent" : "" } ] ], "updatedAt" : Date(-62135596800000) } I wish to remove the

How to remove an unnamed element from a single item list?

由 牧云@^-^@ 提交于 2021-01-27 04:48:18
问题 This may sound a very beginner's question and very well it could also be a very basic and stupid question, but somehow I am having headache in doing it. Let's suppose I have a single item list v <- as.list("1, 2, 3,") v [[1]] [1] "1, 2, 3," Now I want to split all of its items as separate items v2 <- lapply(str_split(v, pattern = ","), trimws) v2 [[1]] [1] "1" "2" "3" "" Now I want to remove this "" from the first and only item of this list without using [] ? 回答1: Using nzchar . lapply(v2,

Scheme: Remove the maximum from a BST

由 筅森魡賤 提交于 2021-01-20 12:18:06
问题 Good afternoon everyone, I have very odd question and I'm sorry If I have posted in a wrong part of the forum. I'm trying to understand remove-max function (provided bellow) from a BST written in scheme, but I have a hard time grasping the ideas in it. I know the Scheme syntax, however there is a lot of going on in this function and thus I am a bit confused. (define removemax-BST (lambda (T) (cond ((null? (caddr t)) (cons (cadr t) (car t)) (else (let ((r (removemax-BST (caddr t)))) (cons

Remove lines after first match

由 喜夏-厌秋 提交于 2021-01-04 05:36:12
问题 I need to remove all lines after the first line that contains the word "fox" Say for example for the following input file "in.txt" The quick brown fox jumps over the lazy dog the second fox is hunting The result will be The quick brown fox jumps I prefer a script made in awk or sed but any other command line tools are good, like perl or php or python etc. For searching purposes I will add this line: Remove lines after occurrence Later edit: I am using gnuwin32 tools in Windows, and the

git remove a file from remote repository

由 橙三吉。 提交于 2020-02-29 14:42:34
当你误提交一些文件的时候，比如log 之类的，这些事本地文件需要的，那么如何删除远程仓库的这些log，而不删除本地的文件呢。 git rm -r -- cached File-or-FolderName -r Allow recursive removal when a leading directory name is given. -- cached Use this option to unstage and remove paths only from the index. Working tree files, whether modified or not, will be left alone. -n或者 -- dry-run Don’t actually remove any file(s). Instead, just show if they exist in the index and would otherwise be removed by the command. git rm -r -n --cached "bin/" //-n：加上这个参数，执行命令时，是不会删除任何文件，而是展示此命令要删除的文件列表预览。 git rm File-or-FolderName #### 删除本地和repository git commit -m "Removed
订阅 remove