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问题 I have a pandas dataframe like below. I want to search a text in each row of the dataframe and highlight if that text appears in the row. For example, I want to search each row for "jones". I want to ignore the case of my search word. In the below case, I would like to add a new column to data called "jones" and it would have values 1,1,0 as that word was found in 1st and 2nd row I found this post which shows how to find a text in a column, but how could I find a text when I have many columns

问题 After having searched the internet I was not able to satisfy myself that I had found a comprehensive set of situations in which a linear search would be preferable to a binary search. I am essentially wondering whether it would be possible to compile a relatively definitive list of advice (from the point of view of general programming as one might find in industry). Alternatively I would much appreciate it if it could be verified that indeed I have seen all there is to say on the subject. 回答1

问题 In a multi-dimensional space, I have a collection of rectangles, all of which are aligned to the grid. (I am using the word "rectangles" loosely - in a three dimensional space, they would be rectangular prisms.) I want to query this collection for all rectangles that overlap an input rectangle. What is the best data structure for holding the collection of rectangles? I will be adding rectangles to and removing rectangles from the collection from time to time, but these operations will be

问题 I am working on a Search Engine built in Lucene 5.2.1, but I am having trouble with Sort updated option for Search. I get an error while searching with the Sort option: Exception in thread "main" java.lang.IllegalStateException: unexpected docvalues type NONE for field 'stars' (expected=NUMERIC). Use UninvertingReader or index with docvalues. at org.apache.lucene.index.DocValues.checkField(DocValues.java:208) at org.apache.lucene.index.DocValues.getNumeric(DocValues.java:227) at org.apache

问题 How I can search within a specific block of code or selection in IntelliJ IDEA? I got used to using this feature in Eclipse. In Eclipse you can just double click on the beginning of a curly bracket, and it'll highlight the entire block of code. After which you could do Command + f ( Ctrl + f on Windows) to search ONLY in the highlighted block, or you could just highlight whatever you need and search just that block of code. 回答1: Go to Settings | Keymap , search for the Find... action in the

问题 I am currently using Perforce version 2010.2. It appears that this version does not have an integrated search functionality that will go through the content of every single file. My current P4V version only allows me to search for filenames but not for content. Any input on this would be much appreciated. Thank you in advance. 回答1: Try the 'p4 grep' command, added in release 2010.1, I believe. 来源： https://stackoverflow.com/questions/10519342/how-do-i-search-for-the-content-of-files-in-a

问题 I have a limited list of thousands of keywords (of one or more words in each keyword) in a database. I want to efficiently find which of those keywords are in given input text without having to test each of those keywords one by one (full table scan). Allowing to match some misspelled words in the text would be even better but not essential. Any algorithm/article suggestions to solve this? 回答1: I think some of the answers so far are misunderstanding the problem that is being asked. My

问题 I'm looking for the optimal solution for keyword matching between different records in the database. It's a classic problem, I've found similar questions, but nothing concretely. I've done it with full text searches, joins and subqueries, temp tables, ... so i'd really like to see how you guys are solving such a common problem. So, let's say I have two tables; Products and Keywords and they are linked with the third table, Products_Keywords in a classic many-to-many relationship. If I show

问题 emperor <- rbind(cbind('Augustus','Tiberius'),cbind('Caligula','Claudius')) How do I return the row and column numbers of all the cells that contain the sequence 'us', i.e. [1,1], [1,2], [2,2]? 回答1: We could use grepl to get a vector of logical index, convert to a matrix of the same dimension as the original matrix ('emperor') and wrap with which with arr.ind=TRUE . which(matrix(grepl('us', emperor), ncol=ncol(emperor)), arr.ind=TRUE) # row col #[1,] 1 1 #[2,] 1 2 #[3,] 2 2 Or another way to

问题 I am trying to find and replace line breaks in text using javascript. The following works. It replaces the character a with the character z. var text = "aasdfasdf"; text= text.replace(/a/g,"z"); alert(text); The following based on other posts on this and other message boards does not. Basically the javascript does not fire: var text = "aasdfasdf"; text= text.replace(/\n/g,"z"); alert(text); ...Here is one of many posts that suggests it should work. JavaScript: How to add line breaks to an