intersect Questions
8
Solved
I've got a class:
class ThisClass
{
private string a {get; set;}
private string b {get; set;}
}
I would like to use the Intersect and Except methods of Linq, i.e.:
private List<ThisClass&g...
5
Solved
The Problem
I have two string vectors of different lengths. Each vector has a different set of strings. I want to find the strings that are in one vector but not in both; that is, the symmetric di...
Yardstick asked 5/11, 2013 at 20:9
3
I'm trying to execute a simple st_intersects query:
select st_intersects('MULTIPOLYGON(((1 5,4 8,7 5,4 2,1 5)),((5 5,8 8,11 5,8 2,5 5)))','POLYGON((3 4.5,3 5,4 5,4 4,3 4.5))');
which crush the c...
Oddson asked 6/3, 2017 at 13:45
2
I'm identifying if a point locates within a polygon. I have a dataframe contains the points and another dataframe contains the polygons, so I want to spatial join them like:
gpd.sjoin(df_points, df...
11
Solved
I have two lines that intersect at a point. I know the endpoints of the two lines. How do I compute the intersection point in Python?
# Given these endpoints
#line 1
A = [X, Y]
B = [X, Y]
#line 2...
11
I need to implement the following query in MySQL.
(select * from emovis_reporting where (id=3 and cut_name= '全プロセス' and cut_name='恐慌') )
intersect
( select * from emovis_reporting where (id=3) an...
5
Solved
Assume I have two dataframes of this format (call them df1 and df2):
+------------------------+------------------------+--------+
| user_id | business_id | rating |
+------------------------+-----...
9
I have two tables, records and data. records has multiple fields (firstname, lastname, etc.). Each of these fields is a foreign key for the data table where the actual value is stored. I need to se...
5
Solved
I have two Ruby arrays, and I need to see if they have any values in common. I could just loop through each of the values in one array and do include?() on the other, but I'm sure there's a better ...
6
Solved
This is my query:
-- Sids of suppliers who supply a green part AND a red part
(SELECT Suppliers.sid
FROM Suppliers
JOIN Catalog ON Catalog.sid = Suppliers.sid
JOIN Parts ON Parts.pid = Catalog.pid...
3
Solved
I came across this example and I don't understand what it means.
(SELECT drinker FROM Frequents)
EXCEPT ALL
(SELECT drinker FROM Likes);
relations: Frequents(drinker, bar), Likes(drinker, beer...
South asked 10/2, 2015 at 13:19
4
Solved
I have a question about Linq / Lambda and the following issue:
I have two dictionaries, primary and secondary... These two dictionaries are defined as Key=string, Value=int. I need to trim down th...
Racon asked 21/5, 2012 at 12:18
4
Solved
I would like to intersect two lists in Python (2.7). I need the result to be iterable:
list1 = [1,2,3,4]
list2 = [3,4,5,6]
result = (3,4) # any kind of iterable
Providing a full iteration will b...
Mailand asked 16/6, 2011 at 9:13
1
Solved
If we consider three single-column tables each having two rows: A = (1, 2), B = (2, 3), C = (3, 4). Then if we try UNION and INTERSECT together using parenthesis, the result is quite consistent:
(...
2
An intersection of Two Lists Objects in java 8. Can some tell me what am I doing wrong?
List<Student> originalStudent = new ArrayList<>();
List<Student> newStudent = new ArrayLis...
Dump asked 16/12, 2018 at 17:58
2
Solved
I understand, that INNER JOIN is made for referenced keys and INTERSECT is not. But afaik in some cases, both of them can do the same thing. So, is there a difference (in performance or anyth...
Abuttal asked 9/8, 2018 at 21:2
2
EXAMPLE DATA
v1 <- c("E82391", "X2329323", "C239923", "E1211", "N23932", "F93249232", "X93201", "X9023111", "O92311", "9000F", "K9232932", "L9232932", "X02311111")
v2 <- c("L9232932", "C2399...
Sheepdog asked 26/4, 2018 at 12:42
2
Solved
I've been searching for an answer for hours but have trouble finding anything on the topic.
I have a question related to Objective-c. I'm making an application in which a UIView checks for touches...
Collbaith asked 22/12, 2012 at 1:30
1
Solved
I am trying to combine a SpatialPointsDataFrame (grid) of 1000x1000m squares over a SpatialPolygonsDataFrame (info) to aggregate all the information of the points within each grid square.
I tried ...
8
Solved
Intersect can be used to find matches between two collections, like so:
// Assign two arrays.
int[] array1 = { 1, 2, 3 };
int[] array2 = { 2, 3, 4 };
// Call Intersect extension method.
var inters...
Zubkoff asked 11/4, 2011 at 10:53
3
Solved
I am working with shapefiles in R, one is point.shp the other is a polygon.shp.
Now, I would like to intersect the points with the polygon, meaning that all the values from the polygon should be at...
6
Solved
I previously posted this question as jquery/javascript: arrays - jquery/javascript: arrays.
But since I am a complete beginner I have formulated the question wrong and didn't understand the answers...
Cordless asked 23/10, 2010 at 10:22
15
Solved
5
Solved
I have two tables with the same number of columns with no primary keys (I know, this is not my fault). Now I need to delete all rows from table A that exists in table B (they are equal, each one wi...
Nature asked 23/6, 2015 at 21:47
4
Solved
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