match | 易学教程

Having a basic issue using merge function

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问题 I'm having a problem with merge() I have two data frames, one that I imported from SPSS (ssfia) and one that I created on my own. The latter contains a variable indexing the degree of overlap between two variables in the former. match<-ifelse(ssfia$Func_Source==ssfia$Symptom_Source,1,0) I want to merge this new "match" variable by "ID" the SPSS dataset (ssfia), so I made a data frame with ID and my new Match variable. matchf<-data.frame(match,ssfia$ID) Now I try to merge them... merge(ssfia

cisco 2811 Qos

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cisco 2811 Qos 一、某公司QoS策略配置实例 Current configuration : 3568 bytes ! ! version 12.2 service timestamps debug datetime service timestamps log datetime service password-encryption ! hostname xxxxxx ! enable secret 5 $1$uJPt$/Uh ! clock timezone China 8 ip subnet-zero no ip source-route ip cef ! ! ip name-server x.x.x.x ip name-server x.x.x.x ! no ip bootp server ! class-map match-any premium_class description For premium match protocol fasttrack match protocol http match protocol icmp match protocol napster match protocol netshow match protocol pcanywhere match protocol realaudio match protocol

Elastic Search: “Exact” phrase matching with wildcards

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问题 I'm using Elastic to search for names in a genealogical database. One of the options for the search is "exact search". The problem is that my clients want wildcards to be allowed in the exact search, so the difference between exact and inexact is that inexact search will return fuzzy matches, whereas exact should return the exact phrase searched for with the exception of wildcards (no fuzzy results). In order to enable wildcards, the search is currently using querystring. This is the format

Why does matching on a tuple of dereferenced references not work while dereferencing non-tuples does?

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问题 I'm trying to sort a Vec of enums. Please ignore the sorting mechanism itself, this is just a stripped-down example. use std::cmp::Ordering; enum MyEnum { Option1, Option2, } fn main() { let mut my_list: Vec<MyEnum> = vec![MyEnum::Option1, MyEnum::Option2, MyEnum::Option1]; // (1) - doesn't work my_list.sort_unstable_by(|a, b| match (*a, *b) { (MyEnum::Option1, MyEnum::Option1) => Ordering::Equal, (MyEnum::Option1, MyEnum::Option2) => Ordering::Less, _ => Ordering::Greater }); } I get the

Elasticsearch实践（二）：搜索

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本文以 Elasticsearch 6.2.4为例。经过前面的基础入门，我们对ES的基本操作也会了。现在来学习ES最强大的部分：全文检索。准备工作批量导入数据先需要准备点数据，然后导入： wget https://raw.githubusercontent.com/elastic/elasticsearch/master/docs/src/test/resources/accounts.json curl -H "Content-Type: application/json" -XPOST "localhost:9200/bank/account/_bulk" --data-binary "@accounts.json" 这样我们就导入了1000条数据到ES。注意： accounts.json 每行必须以 \n 换行。如果提示 The bulk request must be terminated by a newline [\n] ，请检查最后一行是否以 \n 换行。 index是bank。我们可以查看现在有哪些index： curl "localhost:9200/_cat/indices?format=json&pretty" 结果： [ { "health" : "yellow", "status" : "open", "index" : "bank",

elasticsearch多种搜索方式

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简要 1、query string search 2、query DSL 3、query filter 4、full-text search 5、phrase search 6、highlight search 1、 query string search 搜索全部商品： GET /ecommerce/product/_search query string search 的由来，因为 search 参数都是以 http 请求的 query string 来附带的。搜索商品名称中包含 yagao 的商品，而且按照售价降序排序： GET /ecommerce/product/_search?q=name:yagao&sort=price:desc 适用于临时的在命令行使用一些工具，比如 curl ，快速的发出请求，来检索想要的信息；但是如果查询请求很复杂，是很难去构建的，在生产环境中，几乎很少使用 query string search 。 took：耗费了几毫秒 timed_out：是否超时，这里是没有 _shards：数据拆成了5个分片，所以对于搜索请求，会打到所有的primary shard（或者是它的某个replica shard也可以） hits.total：查询结果的数量，3个document hits.max_score：score的含义

Check if coordinates is within a specific distance from other coordinates

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问题 Ok, so I have a target on certain coordinates, and some 'persons' on other coordinates, and I want to check if the persons coordinates is within a 2km (2000m) distance from the target coordinates. The code below is just to illustrate what I want more clear, and the question is of course how could this be done? I would really appreciate a solution to this one, thanks! $person0 = Array('56.34342', '49.324523'); $person1 = Array('57.49544', '47.421524'); $person2 = Array('56.74612', '48.722323')

Regular Expression for comments but not within a “string” / not in another container

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问题 So I need a regular expression for finding single line and multi line comments, but not in a string. (eg. "my /* string" ) for testing ( # single line, /* & */ multi line): # complete line should be found lorem ipsum # from this to line end /* all three lines should be found */ but not here anymore var x = "this # should not be found" var y = "this /* shouldn't */ match either" var z = "but" & /* this must match */ "_" SO does the syntax display really well; I basically want all the gray text

Regular Expression for comments but not within a “string” / not in another container

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neo4j how to work with two match

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问题 I have two queries. First query is match (user)-[r:CreatesChat]-(chatitems) Second query is match (chatitems)-[r:PartOf]-(teamschat)-[s:OwnedBy]-() I want to return the first 3 users from the first query And to return the first 3 teams from the second query The goal is to check if users from first query have the teams of second query My neo4j query is match (user)-[r:CreatesChat]-(chatitems) with user.id as uid,chatitems.id as chatid order by uid desc with collect([uid])[..3] as users,collect