distinct-values Questions
8
Solved
I am curious what would be an efficient way of uniquifying such data objects:
testdata = [ ['9034968', 'ETH'], ['14160113', 'ETH'], ['9034968', 'ETH'], ['11111', 'NOT'], ['9555269', 'NOT'], ['15724...
Cauline asked 16/9, 2010 at 7:29
6
Solved
I have an array of object.
I want to get distinct elements in this array by comparing objects based on its name property
class Item {
var name: String
init(name: String) {
self.name = name
}
}
le...
Venomous asked 30/5, 2016 at 4:53
35
Solved
In Java 8 how can I filter a collection using the Stream API by checking the distinctness of a property of each object?
For example I have a list of Person object and I want to remove people with ...
Amaris asked 16/5, 2014 at 15:40
13
Solved
Let's say I have the following data frame:
> myvec
name order_no
1 Amy 12
2 Jack 14
3 Jack 16
4 Dave 11
5 Amy 12
6 Jack 16
7 Tom 19
8 Larry 22
9 Tom 19
10 Dave 11
11 Jack 17
12 Tom 20
13 Amy 2...
Woald asked 11/10, 2012 at 13:8
4
How can one get the distinct (distinct based on two property) list from a list of objects.
for example let there are list of objects with property name and price.
Now how can I get a list with dist...
Evalyn asked 15/3, 2017 at 18:28
4
I'm having trouble coming up with a value for a cell in SSRS, which should be a sum of distinct values. I have a SSRS report that looks similar to the below screenshot:
I'm having trouble gettin...
Patrology asked 13/8, 2013 at 19:58
3
Solved
Reading How to use RxJs distinctUntilChanged? and this, it seems that distinctUntilChanged alters the output stream to only provide distinct contiguous values.
I take that to mean that if the same...
Suggestible asked 23/10, 2017 at 12:52
5
Solved
Here in this snippet I am stuck with as in _.uniqBy(array, iteratee). This
iteratee can be a function or a string at the same time
Where to put the condition to check uniqueness on the property, b...
Adjoining asked 25/11, 2016 at 9:16
6
Solved
The question is pretty much in the title: Is there an efficient way to count the distinct values in every column in a DataFrame?
The describe method provides only the count but not the distinct co...
Supererogate asked 30/11, 2016 at 12:55
4
Solved
I want to subset my df to include only columns that include a certain value in any row.
for example, if I have:
year = c(1990,1991,1992,1993,1994,1995,1996,1997,1998,1999)
apple = c(1,4,6,8,9,9,2,4...
Dian asked 21/6, 2022 at 15:32
3
Solved
I need a Query to get distinct keys with sorted on basis of score in Mongodb 1.6.5
I have records Like
{key ="SAGAR"
score =16
note ="test1"
}
{key ="VARPE"
score =17
note ="test1"
}
{key ="SA...
Troxell asked 21/1, 2011 at 13:40
3
Solved
For rxjs, can I provide an initial value when using distinctUntilChanged? It seems that the equals check is skipped entirely when no previous value was received. I'd like to not emit anything when ...
Pertinacious asked 16/8, 2018 at 12:17
4
Solved
I have two lists of strings. How do I get the list of distinct values between them or remove the second list elements from the first list?
List<string> list1 = { "see","you","live"}
List&l...
Nysa asked 11/7, 2011 at 22:54
7
Solved
How can I list the distinct values in a vector where the values are replicative? I mean, similarly to the following SQL statement:
SELECT DISTINCT product_code
FROM data
Saltwater asked 13/10, 2011 at 13:57
1
I wanted to recreate the example of the fastest method of extracting sorted unique values demonstrated in this post: What is the fastest way to get a vector of sorted unique values from a data.tabl...
Malmo asked 13/4, 2021 at 14:38
8
Solved
I know that there are easy ways to generate lists of unique random integers (e.g. random.sample(range(1, 100), 10)).
I wonder whether there is some better way of generating a list of unique random...
Refractory asked 29/7, 2017 at 23:31
2
Solved
I have the following model:
class Bank(model.Model):
name: models.CharField
....
Using the following sample data:
╔══════════════╗
║ Row ID, Name ║
╠══════════════╣
║ 1, ABC ║
║ 2, ABC ║
║ 3, XY...
Janiculum asked 16/10, 2020 at 5:29
4
Solved
I am using influx DB and issuing command,
SELECT * FROM interface
Below is the out put-
interface
time element path value
2016-08-24T21:22:16.7080877Z "link-layer-address0" "key:/arp-informati...
Botulin asked 29/8, 2016 at 23:20
2
Solved
I am trying to get the distinct values from a field in MongoDB. I am having real trouble with the Syntax. Using mongoshell it's relatively easy to do, this is the query I run:
db.cmstest.distinct...
Prefrontal asked 1/3, 2016 at 14:7
5
Solved
I have a HashSet that contains multiple lists of integers - i.e. HashSet<List<int>>
In order to maintain uniqueness I am currently having to do two things:
1. Manually loop though exis...
Bolivia asked 1/4, 2011 at 19:28
3
Solved
here's some dummy data:
user_id date category
27 2016-01-01 apple
27 2016-01-03 apple
27 2016-01-05 pear
27 2016-01-07 plum
27 2016-01-10 apple
27 2016-01-14 pear
27 2016-01-16 plum
11 20...
Imaginable asked 17/1, 2017 at 9:12
1
Solved
I have data in this format :
Category Session_ID Step_Name
A 100 1
A 100 2
A 200 1
A 200 1 <--
A 200 1 <--
A 200 2
B 300 1
B 300 1 <--
I need to remove the duplicate values of...
Undertrump asked 21/10, 2019 at 5:56
3
Solved
I'm new to druid. I've already read "druid VS Elasticsearch", but I still don't know what druid is good at.
Below is my problem:
I have a solr cluster with 70 nodes.
I have a very big table in s...
Comparative asked 24/8, 2016 at 9:35
5
So I have the following list:
test_list = ['Hallo', 42, [1, 2], 42, 3 + 2j, 'Hallo', 'Hello', [1, 2], [2, 3], 3 + 2j, 42]
Now I want to take the unique values from the list and print them on t...
Overcharge asked 2/3, 2019 at 23:47
2
Solved
I just tried doing a countDistinct over a window and got this error:
AnalysisException: u'Distinct window functions are not supported:
count(distinct color#1926)
Is there a way to do a distinct c...
Badajoz asked 24/8, 2017 at 19:4
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