Equivalence is a relationship in which two or more identifiers are abstractions for the same data structure.
References
Questions tagged [equivalence]
168 questions
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How to sort a dataframe in R by mapping column names of one dataframe based on the order of row names of another dataframe?
I was looking to sort a dataframe in R by mapping column names of one dataframe based on the order of row names of another dataframe. After this identify whether the rows and column names that have been sorted and mapped correctly for the purpose…
Mohammed Toufiq
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1 answer
Python's equivalent of "EQUIVALENCE" concept in Fortran?
I am interested in rewriting an old Fortran code to Python. The code was for solving any general field variable, call it F (velocity, temperature, pressure, etc). But to solve each variable we have to define EQUIVALENCE of that variable to F.
For…
Bharath Ram
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String identity equivalence in Python when comparing a string with whitespace
When I do
a = "myString"
b = "myString"
a is b
> True
and this is true if the strings are identical, no matter the length. however, when I add a whitespace in there, the identity is no longer the same. so
a = "my string"
b = "my string"
a is b
>…
Arturo
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2 answers
TOST for non-parametric data
I am using the function 'tost' from the package 'equivalence' to conduct a test of equivalence for normally distributed data. In case of non-normally distributed data, I want to conduct the non-parametric equivalent to TOST.
I know how to conduct…
soschnei
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0 answers
Equivalence verification using Lava
I've been trying to verify equivalence property between two circuits in Chalmers Lava. I have declared a type bit:
type Bit = Signal Bool
And I have two circuits each has a list of bits as input and a tuple of lists of bits, and a function that…
Balkis
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1
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3 answers
Is there a structural equivalence type in C?
Is there a structural type equivalence in C?
AHS
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2 answers
Can scala syntatic sugar make a congruence mod n?
Consider 2+7 == 3+6 (mod 5). Can you some how use scala syntactic sugar to achieve the same in scala code?
Keep in mind that 2+7 and 3+6 are regular scala Int so overriding the + or == to be mod 5 doesn't work. I'm actually interested in more…
Algeboy
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2 answers
Finding equal variables in non solvable multi-variables linear equations
I am trying to find an algorithm to solve the current problem. I have multiple unknown variables (F1,F2,F3, ... Fx) and (R1,R2,R3 ... Rx) and multiple equations like this:
F1 + R1 = a
F1 + R2 = a
F2 + R1 = b
F3 + R2 = b
F2 + R3 = c
F3 + R4 =…
koms
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5 answers
Creating a scatterplot for each value of the first column in an r dataframe
Using the file below, I am trying to creating 2 scatterplots. One scatterplot compares the 2nd and 3rd column when the first column is equal to "coat" and the second scatterplot compares the 2nd and third column when the first column is equal to…
Sam
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Implementation of an equivalence relation for recurrence rules (rrules)
I'm looking into how to implement a human-friendly text representation of recurrence rules similar to the toText() and fromText() methods of rrule.js; however, I'd like to implement it in Python building on dateutil.rrule.
Testing such methods…
Kurt Peek
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1 answer
Expected equivalence: typeid of data expression and type expression
I have polymorphic classes derived from a base class A:
class A {
public:
virtual void fV() { }
};
class B : public A {
public:
void mB() { }
};
class C : public A {
public:
void mC() { }
};
I want now to iterate over an array…
Isi
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2 answers
MySQL - Multiple equivalencies in WHERE clause
I was wondering if there is a difference between the following two WHERE clauses in MySQL:
WHERE a.Id = b.Id = c.Id
vs.
WHERE a.Id = b.Id and b.Id = c.Id
I am getting different results for these two queries in the following SQLFiddle:…
Zhouster
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3 answers
Scheme symbolic equivalence
The platform i'm working with is DrScheme.
I've seen that a pair (a b) [constructed by (cons a b)] is implemented within the language like a procedure that looks like this:
(define (cons a b)
(lambda(pick)
(cond ((= pick 1) a)
((=…
Metz
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1 answer
using property maps for equivalence in vf2_sub_graph_iso
I'm writing code for graph mining using boost library and I want to use the vf2_sub_graph_iso function, in general vf2_subgraph_iso returns true if a graph-subgraph isomorphism exists and false otherwise, but in my case I want to make it return true…
user3101913
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1 answer
Is the domain & range of owl:equivalentClass rdfs:Class or owl:Class?
The domain and range of owl:equivalentClass raises some questions to which I have been unable to locate the answers.
First of all, in OWL itself, the domain and range of owl:equivalentClass is set to rdfs:Class. This domain and range seem to clash…
Semper
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