indexing

问题 Is it possible to slice 3'rd line (tt)? This code is simplified, but the problem is similar. I am using multiplied iterator (3*i) in array index, however it doesn't work. Maybe it is possible to change it somehow. parfor i = 1 : NE tmp = i * [1, -1; -1, 1]; tt(3*i-1:3*i+1) = tmp([3,2,4]); pp(i) = tmp(1,1,i); end; Thanks :) 回答1: To be a sliced output variable, tt must be indexed using literally only the loop variable i , and other constant terms (including : ). Perhaps you can make tt

问题 I'm using laravel and elasticsearch-php to index and store data to elastic, my problem is that elastisearch uses from dynamic mapping but I need to set my custom mapping. How can I use from my mapping? Bellow is my code: $client = \Elasticsearch\ClientBuilder::create()->build(); $mappingData = array( 'index' => 'promote_kmp', 'body' => array( 'mappings' => $resource->getMappingProperties() ) ); $client->indices()->create($mappingData); $params = [ 'type' => 'resources', 'id' => uniqid(),

问题 I am working with excel and trying to find if a portion of one cell matches anything from a list. I am attempting to extract that part of the cell as my result. The formula I am working with is: {=INDEX($A$1:$A$10,MATCH(1,COUNTIF(B1,"* "&$A$1:$A$10&"*"),0))} note: had to space out the asterisk to avoid italics A1 to A10 is the list i am referencing and anything in column B is what I am searching partail parts for in the list The problem is the formula return the most common value found in the

问题 in my application I use several elasticsearch indices, which will contain no indexed documents in their initial state. I consider that can be called "empty" :) The document's mapping is correct and working. The application also has a relational database that contain entities, that MIGHT have documents associated in elasticsearch. In the initial state of the appliation it is very common that there are only entities without documents, so not a single document has been indexed, therefore "empty

问题 I have created indexes on two properties: mgmt.buildIndex("userId", Vertex.class).addKey(mgmt.makePropertyKey("userId").dataType(Integer.class).make()).buildCompositeIndex(); mgmt.buildIndex("firstNameIndex", Vertex.class).addKey(mgmt.makePropertyKey("firstName").dataType(String.class).make()).buildCompositeIndex(); On Gremlin shell i can see the indexes have been created: g.getIndexedKeys(Vertex.class) ==>userId ==>firstName Now when i so query on vertices like simplest one: gremlin> g.V()

问题 I try to inserts geo points to mongodb with 2dsphere unique index, but it raises many duplicate key error. A simple reproduce demo: > version() 2.4.5 > use geo > db.test.ensureIndex( { loc : "2dsphere" }, unique=true ) > db.test.insert({"loc" : { "type" : "Point", "coordinates" : [ 113.3736642, 23.04469194 ] }}) > db.test.insert({"loc" : { "type" : "Point", "coordinates" : [ 113.3734775, 23.04609556 ] }}) E11000 duplicate key error index: geo.test.$loc_2dsphere dup key: { : "1f22000102222113"

问题 After several days and multiple attempts I didn't find any 100% solution for this trouble. My search and investigation scopes: Direct access to registry: HKLM\SOFTWARE\Microsoft\Windows Search\CrawlScopeManager\Windows\SystemIndex\WorkingSetRules HKCU\Software\Microsoft\Windows Search\Gather\Windows\SystemIndex\Protocols\Mapi HKLM\SOFTWARE\Microsoft\Windows Search\Gather\Windows\SystemIndex\Sites\ and other keys... Windows Search 3.X interfaces like ISearchManager using Microsoft.Search

问题 I am trying to clean some data and would like to replace zeros with values from the previous date. I was hoping the following code works but it doesn't temp = c(1,2,4,5,0,0,6,7) temp[which(temp==0)]=temp[which(temp==0)-1] returns 1 2 4 5 5 0 6 7 instead of 1 2 4 5 5 5 6 7 Which I was hoping for. Is there a nice way of doing this without looping? 回答1: The operation is called "Last Observation Carried Forward" and usually used to fill data gaps. It's a common operation for time series and thus

问题 Just say I had a query as below.. SELECT name,category,address,city,state FROM table WHERE MATCH(name,subcategory,category,tag1) AGAINST('education') AND city='Oakland' AND state='CA' LIMIT 0, 10; ..and I had a fulltext index as name,subcategory,category,tag1 and a composite index as city,state ; is this good enough for this query? Just wondering if something extra is needed when mixing additional AND 's when making use of the fulltext index with the MATCH/AGAINST. Edit: What I am trying to

问题 Just say I had a query as below.. SELECT name,category,address,city,state FROM table WHERE MATCH(name,subcategory,category,tag1) AGAINST('education') AND city='Oakland' AND state='CA' LIMIT 0, 10; ..and I had a fulltext index as name,subcategory,category,tag1 and a composite index as city,state ; is this good enough for this query? Just wondering if something extra is needed when mixing additional AND 's when making use of the fulltext index with the MATCH/AGAINST. Edit: What I am trying to