The SQL intersect operator returns rows that are common between two tables without returning duplicate records.
Questions tagged [intersect]
643 questions
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votes
1 answer
Intersect/Diff array in PHP
I have a problem using php like this:
Array 1: [a=>a, b=>b, c=c, d=d]
Array 2: [a=>123, b=>b, c=234]
ResultArray: [a=>123, c=>234, d=d]
How can I get ResultArray from Array1 & Array2? Can anyone help me. Thanks
Lộc Nguyễn
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votes
2 answers
Given 2 points and a line- do the points intersect the line? : algorithm/pseudocode
A coworker gave me this problem to try out my knowledge:
Consider two points, 1 and 2, having coordinates (x1, y1) and (x2, y2), respectively. In the same plane as these two points is a vertical line whose top and bottom are represented by (xTop,…
user7492459
-1
votes
1 answer
Array of Polygons
I want to define Poly gon Array , so :
private static ArrayList basePolyList = new ArrayList();
//read the file and store to basePolyList
parser.readBaseFile(filename_1, basePolyList);
//get size of basePolyList
int…
Mostafa.Hosseini
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votes
1 answer
How to intersect two columns in r?
I have a data frame as following and I want to intersect them to become one column.
ID<-c('>1','>2','>3','>4','>5')
TYPE<-c('A','B','O','A','B')
old<-data.frame(ID,TYPE)
old
ID TYPE
>1 A
>2 B
>3 O
>4 A
>5 B
I want to…
Terence Tien
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votes
2 answers
How to intersect a lot of sets
I have sets
{1, 2, 3, 4}
{2, 3, 4, 5}
{3, 4, 5, 6}
{4, 5, 6, 7}
{5, 6, 7, 8}
I need to intersect sets start from first. I mean that I should to intersect
{1, 2, 3, 4}
{2, 3, 4, 5}
{3, 4, 5, 6}
next
{2, 3, 4, 5}
{3, 4, 5, 6}
{4, 5, 6, 7}
and…
NineWasps
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votes
2 answers
Intersecting multiple datasets in R
How Do I intersect between multiple samples?
I have 29 lists of concatenates I build according to gene name, cc change, coordinate. Each list is 400-800 long. I need to build a table showing how many variants shared among two lists for all 812…
lance
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- 2
-1
votes
3 answers
SQL intersect two joined tables
I joined two tables
SELECT
t1.column1,
t2.column2
FROM
t1 JOIN t2 cu
ON t1.id = t2.id AND t1.col LIKE 'A%'
SELECT
t1.column1,
t2.column2
FROM
t1 JOIN t2 cu
ON t1.id = t2.id AND t1.col LIKE 'B%'…
gabi906
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votes
1 answer
How to check if a line segment is the extension of another?
What if I have 2 line segments that is defined by two starting and ending points such as below:
line segment 1 starts [0,0] and ends at [5,0]
another line segment 2 starts at [3,0] and ends at [8,0]
How do I check that line segment 2 extends out of…
Mahmoud Ayman
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votes
2 answers
Matlab : Intersect point of curves
Say for example I have data which forms the parabolic curve y=x^2, and I want to read off the x value for a given y value. How do I go about doing this in MATLAB?
If it were a straight line, I could just use the equation of the line of best fit to…
james.sw.clark
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votes
1 answer
Merge multiple queries excluding common results
Data :
--Table 1 :
Id ZoneName
----------- --------
20011 Name1
10027 Name1
20011 Name1
20011 Name1
20011 Name1
20074 Name1
20011 Name2
20011 Name2
10059 Name3
20011 Name2
Query :
Select…
Murtaza Mandvi
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- 109
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votes
3 answers
Displaying total number of common and uncommon elements between two arrays?
I have two arrays: array testAnswer holds "answers to a exam" and array inputAnswers holds "students answers to the exam".
When i run my code, it displays all the common elements of the two arrays(correct answers), and the uncommon elements…
user1625857
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- 2
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votes
1 answer
c# why is the intersect method returning this?
I have two arrays, array testAnswer holds "answers to a exam" and array inputAnswers holds "students answers to the exam".
I am trying to display the correct, and incorrect answers. In other words, trying to show what values testAnswer has that…
user1625857
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- 2
-2
votes
1 answer
how to filter a dataframe column based on intersected values from another column in dataframe
I have two dataframe. I want to filter gene ID from expr_df dataframe based on the intersected values from another data frame gene_Annot.Basically i want to keep genes in expr_df that intersects with geneid from gene_Annot data.
This is how my…
Katherin Wright
- 31
- 5
-2
votes
1 answer
select row matrix based on same name in other row in r
I have a matrix and i want to select part of row based column first, like below example:
original matrix:
x1 x2 x3 x4 x5
a a 15 16 0
b j 12 10 8
c h 14 0 0
d b 28 …
rezgar
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votes
1 answer
Compare two tables and extract the columns similar to both
enter image description hereHi I have two data matrix, one is A and the other is B. I want to compare the first row of A to that of B and if a match is found in B, then the whole column(s) in B should be extracted. In the attached file, under A, 11,…
Python1
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