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Questions tagged [combiners]

105 questions
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how to combine two 'count' value from different tables (2 column, NOT union)

I want to get the count of addmited records by user in 2 table. for example, I have a list of users(table STF) and want to know how many product did a user create (in table PV1) and how many product did he sell (in table dpq), I want to show these…
N. N
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Putting combiner to use in mapreduce secondary sorting

I have implemented secondary sorting for my application. File-1 File-2 File-3 ------ ------ ------ name,pos,r,value name,pos,r,value …
Raghavi Ravi
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How to bundle JavaScript files in PhpStorm

How to combine 2 or more JavaScript files in to a one file in PhpStorm (OR WebStorm). I've searched and found just this result but it is not an answer: Minifying JavaScript I want something like this: Visual studio Bundler & Minifier plugin.
Mohmmad Ebrahimi Aval
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SQL query find rows with related dates

push I have a query in firbird sql, which shows me the last jobs from the employees. It could be possible, that a job is shown multiple, because the employee could be often by one customer. I have a query like: **employee** - **from** - **till** -…
Sam Enbank
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Definitive source for when Hadoop MapReduce Runs a Combiner

There have been quite a few questions like this one already, with conflicting answers. I've also found conflicting statements in the literature and on blogs. In the book, Hadoop, the Definitive Guide, it says Hadoop does not provide a guarantee of…
Kevin
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What is the exact Map Reduce WorkFlow?

Summary from the book "hadoop definitive guide - tom white" is: All the logic between user's map function and user's reduce function is called shuffle. Shuffle then spans across both map and reduce. After user's map() function, the output is in…
bhoots21304
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Combine multiple dictionaries by keys and values?

After hours and suggestions from other posts, I could not solve my problem. I have to manage many dictionaries (until now the only way I know to work). For all four dictionaries that I want to combine, three of them have the same key (d1, d2 and…
F.Lira
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Combine observations based on the variable ID if at least 5 IDs are combined

Last week I posted the following question . The idea was to make a loop that determined the content of a database by randomly combining observations based on the variable "id". For instance: dataset 1: combinations of id 1, 2, 3, 4, 5, 6, 7,…
user33125
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Combining two SUM operations from two tables

I have two operations for SQL (which are working properly, seperately): SELECT SUM(Salary) AS StutorSum FROM Stutor; SELECT SUM(Salary) AS StudentAssistentSum FROM StudentAssistent; ` But the problem is that I cannot combine them. Eventually I…
jorenwouters
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C# Combine list of arrays with count difference

I'm working on a music application that reads lilypond and midi-files. Both filetypes needs to be turned into our own storage. For lilypond you need to read repeat's and their alternatives. There can however be difference in counting. If there are…
Multi-Cab
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Combining lines that are tab delimited

I've got all the lines in a proteins_num sorted numerically, I now need to combine the lines with identical number in a way so that new information is added to the upper line: When I've sorted all the lines numerically, I need to combinde the lines…
Ditte
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Reduce a list of string add prefix only to last element using Java 8 Streams

How can i reduce or collect a list of string delimitted by comma and prefixed "and" only to the last element using Java 8 Streams? eg. List ls = Arrays.asList("tom","terry","john","kevin","steve"); String result =…
Srivatsan
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Combine a set of boolean equations

I have a logic schematic and from the inputs to outputs there are many levels. I would like to find a simplified boolean equation for each output. To avoid mistakes and to make it efficient, I plan to break down the large schematic to one boolean…
CL254
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how to combine two models in matlab for classification?

Hi All I made a NN model for classification and give me what I want also I made KNN which gives me higher accuracy but in my model I want to combine both so both gives me higher accuracy so how I can do that in matlab? ( I am not professional in…
Es Am
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Combining Two Files

Thanks in advance for helping me in this issue, I have two files file1.txt which contains: adam william Joseph Hind Raya and file2.txt which contains: Student Teacher What I want is to combine the two files in one file in this way, so that…
Zufy
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