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Questions tagged [collect]

Use this tag for questions related to the act of gathering/collecting/grouping data/results from several nodes/places/computers to one (or main) resource(s).

Use this tag for questions related to the act of gathering/collecting/grouping data/results from several nodes/places/computers to one (or main) resource(s).

For example, in Distributed Computing, the slaves would do their local computation and eventually, one would like the master to collect the (local) results.

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Expand along a specific symbol in sympy

When I do symbolic integration using Sympy, I would like to expand an expression along a specific symbol so that later I can collect and integrate w.r.t. that symbol. Is there a way to do such "expand" without altering the forms of other…
sunheng
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Implementing collect for list in F#

I am new to programming in functional languages. I am attempting to implement the F# collect for list. let rec collect func list = match list with | [] -> [] | hd::tl -> let tlResult = collect func tl func…
Lawliet N
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How to convert lines in xml by xsl?

I want to change this code Token wst b_3 c_5 …
Levvy
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Checking for nil value inside collect function

I have an array of hashes as per below. Say my array is @fruits_list: [ {:key_1=>15, :key_2=>"Apple"}, {:key_1=>16, :key_2 =>"Orange"}, {:key_1=>17, :key_2 =>" "} ] I want to join the values in the hash using a '|'; but my final…
tech_human
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Array operation using map or collect in Ruby

I have an array @a = [[9, 15], [], []] I need to make it [9,15] using map method. How it is possible? I have tried the below statement, @a.map{|array| array.collect{|element| element} if array.any?}.compact But giving [[9,15]] as output. Can anyone…
Rajesh Omanakuttan
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How to map a Ruby hash?

Is there a better way to map a Ruby hash? I want to iterate over each pair and collect the values. Perhaps using tap? hash = { a:1, b:2 } output = hash.to_a.map do |one_pair| k = one_pair.first v = one_pair.last "#{ k }=#{ v*2 }" end >> [ …
B Seven
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collect possible to def queues = [] as String[]?

I have a question why using collect to a string array is not working. This is working ok String[][] serversAndQueues = [["server1","queue"],["server1","queue1"],["server2","queue2"]] serversAndQueues.groupBy { it[ 0 ] }.each { server, value -> …
user955732
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Collect closure in groovy

I am new to functional programming paradigm and hoping to learn the concepts using groovy. I have a json text containing a list of several person objects like the following: { "persons":[ { "id":1234, "lastname":"Smith", …
Lee
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how to use bulk collect in db2 cursor

Here is my procedure, I don't know how to use bulk collecton in cursor, that we can batch process the cursor data. Please help me, thanks! CREATE PROCEDURE PROC_AUTOACTIVE BEGIN ATOMIC DECLARE v_sql VARCHAR(800); DECLARE v_customer_id…
albert
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JPA native query: How to collect inner fields as list

I have 2 entities: Request and Invoice. (One to many) How can I get result object: public class TestRequest { private Long idRequest; private List idInvoices; } Follow code: Query query = entityManager.createNativeQuery("Select…
Евгений Цацкин
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Ghostscript merge print jobs

Dear Ghostscript Gurus. I have installed and tuned system printer to print to PDF by Gs (gswin32c.exe). The arguments of printer's port are: gswin32c.exe @"pdfwrite.txt" -sOutputFile="c:\PathToPDFFiles\%b.pdf" -c .setpdfwrite -f - And its all…
Voot
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rails an array of many link_to links in a sentence

The problem is, some Organization(s) don't have addresses and it breaks the page (Couldn't find OrganizationUrl with id=1826_). \ I'd like to somehow use the link if the address is present, and if not just show the name. Any…
jahrichie
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How should I proceed after running the collect command?

Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production. I have a table in the below format. Number User Value ------------------- 1 A 25 1 B 28 2 C 30 2 D 35 This is what I…
Rafey
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Collect small JS from webpage to one big JS

This is sample JavaScript code: /* Email me Animation */ $(function() { var offset = $("#sidebar").offset(); var topPadding = 0; $(window).scroll(function() { if ($(window).scrollTop() >…
Denis S
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Puppet reduce function syntax error

I'm trying to run this Puppet code, as described in Puppet documentation: # test.pp $a = [1, 2, 3] $b = $a.collect |$x| { $x + 1 } alert $b But it gives me syntax error: $ puppet parser validate --debug test.pp Error: Could not parse for…
vvolodko
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