Questions tagged [merging-data]
173 questions
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Large file merging problems in SPSS
I have a large dataset of over 4000 cases with over 500 variables. I want to add this set of variables to another dataset containing most of the same cases but only around 10 variables.
Both of the datasets contain an ID variable that allows me to…
Friðgeir
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1 answer
How to reduce the complexity of merging multiple arrays using heap?
I coded the idea presented in this question: merging sorted arrays as can be seen here: Big-O complexity calculation for a merge and sort function.
As can be seen, the complexity of this approach is more than what is desirable. Is there a better…
Tom
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2 answers
Combining arraylist's that contain hashmaps
Hello i have 2 diffrent arraylist of which both contain data in hashmap format (key value pairs). Now i need to combine those 2 list's into a single one while maintaining the order from both list ( so the reference elements from both list at…
Ladybird
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1 answer
Is it too resource intensive to have a server Merge PDFs for Users?
I am doing some research, trying to find out if its a good or bad idea to do the following.
A user would make a selection of choices
Based on the selections, our website would merge these selected PDFs together
The user could download the Merged…
0
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1 answer
How best to Merge Git Changes over SSH
I have a feeling I'm going about this the wrong way.
I have a software project with 3 developers all working on their own GIT Repo making frequent changes. They're pushing their changes to the server, where I then merge the changes and publish to…
newUserNameHere
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2 answers
Perl script for combining 2 files with multiple entries
I have a tab-delimited text file like this:
contig11 GO:100 other columns of data
contig11 GO:289 other columns of data
contig11 GO:113 other columns of data
contig22 GO:388 other columns of data
contig22 GO:101 other columns of data
And another…
Amy Ellison
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2 answers
IOS: Merging and updating NSMutableArray with NSMutableArray from webservice
I'm currently using two JSON web-services to fill two separate NSMutableArrays asynchronously.
Local Stock & Supplier stock
The first web-service retrieves local stock, the other one retrieves supplier stock.
So after the two arrays get filled, I…
blaa
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2 answers
Analyzing data from same tables in different db instances
Short version:
How can I map two columns from table A and B if they both have a common identifier which in turn may have two values in column C
Lets say:
A
---
1 , 2
B
---
? , 3
C
-----
45, 2
45, 3
Using table C I know that id 2 and 3…
OscarRyz
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3 answers
sorting list of lists that contain both sorted and unsorted lists
There are k lists, which contain m unsorted lists (0 <=m < k). How can the lists be merged into a single large list which should also be sorted, No information provided about the lists that are sorted.
bicepjai
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4 answers
Replace elements in an associative array using another associative array
How can assign the values from one array to another array? For example:
//array with empty value
$targetArray = array(
'a' => '',
'b' => '',
'c' => '',
'd' => ''
);
// array with non-empty values, but might be missing keys from the…
user1480765
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-1
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2 answers
Merging/Concat rows in Pandas, based on some specific conditions
I have checked all similar questions, but haven't found a solution to what i look for (or at least i don't get it).
The following is a part of a big DataFrame.
date venue result gf ga team opponent
2017-08-11 Home W 4 1 …
Miserry
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1 answer
How do I merge all .xlsx files in a folder into one file in R
I currently have 12 excel files that are of the same length that I would like to read in R and combine them into one data frame for analysis, how do I do this? I would prefer to not have to go through and name them once the data set gets bigger and…
Robyn O'Halloran
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1 answer
How to correctly use dplyr for merging dataset in R
I'm trying to merge two datasets by the only column with the same name, but the result is a Dataframe with one dataset after the another, without any actual merging on the same row.
This is an example
File1
ID Age
GBI0061M 20
GBI0067M …
Fili____
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2 answers
Sum values from two objects where properties are the same
How can I merge two objects and sum the values of matching properties? I am hoping for a built in function in PHP, otherwise I am seeking an easy way of doing it.
See code under, where I have $objectA and $objectB which I want to become…
Niklas
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1 answer
Extract 2 Columns and Attach as Rows in SAS
I have two datasets in SAS. The first looks like this (let's say it is called data 1 (I'm only concerned with two columns of it)
...and the second dataset (let's say it is called data 2) looks like this:
...and I am trying to extract the second…
lm__entry
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