aggregate Questions
3
Solved
Lets say I have the following list in python. It is ordered first by Equip, then by Date:
my_list = [
{'Equip': 'A-1', 'Job': 'Job 1', 'Date': '2018-01-01'},
{'Equip': 'A-1', 'Job': 'Job 1', 'Da...
Kennedy asked 4/11, 2018 at 19:56
5
I have seen an example of AggregateException on the web and I'm trying to figure out how it works. I have written a simple example, but my code for some reason doesn't work.
Could someone explain ...
4
Solved
I have the following data frame "DF" which is part of a much larger one:
X1 X2 X3 X4 X5
4468 2010-03-24 3 1.000000e+00 1 2
7662 2010-03-24 9 3.000000e+00 2 1
1272 2010-03-25 8 2.000000e+00 1 1
12...
1
I have Following Project Collection
Project Collection :
[
{
Id : 1,
name : p1,
tasks : [{
taskId : t1,
startDate : ISODate("2018-09-24T10:02:49.403Z"),
endDate : ISODate("2018-09-26T10:02:...
Flanch asked 24/9, 2018 at 13:56
2
Solved
Given the following list:
var data = new[]
{
new {category = "Product", text = "aaaa"},
new {category = "Product", text = "bbbb"},
new {category = "Product", text = "bbbb"},
};
how do I gro...
4
Solved
I would like to aggregate a data frame by time interval, applying a different function to each column. I think I almost have aggregate down, and have divided my data into intervals with the chron p...
3
Solved
I have a table named 'Attendance' which is used to record student attendance time in courses. This table has 4 columns, say 'id', 'course_id', 'attendance_time', and 'student_name'. An example of f...
Moye asked 26/7, 2010 at 7:19
3
Solved
I have an URL pointing to content and I need to get the highest value contained in one of the columns. Is there any aggregate function that will accomplish that or do I have to do this manually?
3
Solved
I have a pandas dataframe that looks as follows:
X Y
71455 [334.0, 319.0, 298.0, 323.0]
71455 [3.0, 8.0, 13.0, 10.0]
57674 [54.0, 114.0, 124.0, 103.0]
I want to perform an aggregate groupby that...
Tildy asked 20/8, 2018 at 8:20
1
Solved
I want to use aggregate with this custom function:
#linear regression f-n
CalculateLinRegrDiff = function (sample){
fit <- lm(value~ date, data = sample)
diff(range(fit$fitted))
}
dataset2 =...
Pinkerton asked 15/8, 2018 at 10:38
5
Solved
Is there a way to do this with linq without enumerating the fooCollection twice?
var fooCollection = // get foo
var selectedIds = new List<int>();
var aggregateContent = String.Empty;
forea...
1
I have an array P = [1, 5, 3, 6, 4, ...] of size N and average A.
I want to find the most efficient way to maximize the following 3D function:
f(x, y) = 1 / ( (1+e^(-6(x-2))) * (1+e^(-6(y-2))) * ...
Lewin asked 14/7, 2018 at 0:49
3
Solved
In C++14 (gcc 6.3) I have the following code:
#include <memory>
#include <vector>
#include <stdexcept>
struct A
{
int a1;
int a2;
};
struct B
{
int b1;
std::shared_ptr< ...
5
I've inherited the following DB design. Tables are:
customers
---------
customerid
customernumber
invoices
--------
invoiceid
amount
invoicepayments
---------------
invoicepaymentid
invoiceid...
2
Solved
I want to get count of a set based on different condition:
var invoices = new AccountingEntities().Transactions
var c1 = invoices.Count(i=>i.Type = 0);
var c2 = invoices.Count(i=>i.Type =...
Immuno asked 11/11, 2010 at 5:22
6
Solved
You cannot (should not) put non-aggregates in the SELECT line of a GROUP BY query.
I would however like access the one of the non-aggregates associated with the max. In plain english, I want a tab...
1
Solved
I have two collections
A with schema
{
a : Array,
b : ObjectID
}
and B with the following schema
{
x : 'string',
y : // some object schema
...
b : ObjectID
}
I want to use mongo aggre...
Buttonball asked 24/6, 2018 at 14:17
4
Solved
I'm having some trouble aggregating a data frame while keeping the groups in their original order (order based on first appearance in data frame). I've managed to get it right, but was hoping there...
Bugs asked 8/8, 2012 at 19:9
1
I have a MongoDB query that groups by 5min windows based on date and returns count (which is the total number of documents in that 5min window using count: { $sum: 1 }).
I'd like to have the quer...
4
Solved
2
Solved
Though I was reading through the NHibernate Cookbook and all available forum-posts up and down, I'm still not able to get this simple query done:
I have users with everyone having one account. Eac...
Stupefy asked 16/6, 2011 at 15:38
4
Solved
I have a table with an ID column and another column with a number. One ID can have multiple numbers. For example
ID | Number
1 | 25
1 | 26
1 | 30
1 | 24
2 | 4
2 | 8
2 | 5
Now based of thi...
Singlehanded asked 2/1, 2013 at 16:12
1
I've read a lot in the last couple of days, but wasn't able to find a solution which works for me. Also saw some stuff where the string type was using, which is deprecated in the ES version I'm usi...
Dorser asked 8/11, 2017 at 22:20
5
Solved
Does anybody know how to aggregate by NA in R.
If you take the example below
a <- matrix(1,5,2)
a[1:2,2] <- NA
a[3:5,2] <- 2
aggregate(a[,1], by=list(a[,2]), sum)
The output is:
Group...
2
Solved
using a Postgres-Db as source for json-documents, I need to convert two columns from a table to an JSON-object.
So I have the columns "color_id", "language" and "name" in a table of colors:
col...
Havens asked 7/10, 2016 at 16:49
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