concepts | Formal Concept Analysis with Python
kandi X-RAY | concepts Summary
kandi X-RAY | concepts Summary
Formal Concept Analysis with Python
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Top functions reviewed by kandi - BETA
- Take the set of objects
- Return a subset of items in the set
- Return True if any of the items in the sequence are present
- Initialize an iterable
- Dump a file to a file
- Return the maximum length of an iterable
- Write rows to a csv file
- Construct a junctors
- Returns a list of booleans
- Move a property
- Parse attributes section
- Render graphviz
- Generator of the FCBO
- Minimum members of the intent
- Load a context from a file
- Load a context from a CSV file
- Dump objects to a csv file
- Load a cxt file
- Load a context from a JSON file
- Rename an object
- Set a property
- Set an object
- Annotate the given mapping
- Returns a list of empty properties
- Construct a context from a source string
- Renames a property
concepts Key Features
concepts Examples and Code Snippets
Lines of Code : 10License : Strong Copyleft (CC BY-SA 4.0)
Copydef get_self_IP():
addresses = []
for ifaceName in interfaces():
ifaddresses_list = ifaddresses(ifaceName)
possibilities = [i['addr'] for i in ifaddresses_list.setdefault(AF_INET, [{'addr': 'No IP addr'}])]
for i in ptitles = [item.split('(')[0].strip() for item in disney_data['title']]
years = [item.split('(')[1].split(')')[0].strip() for item in disney_data['title']]
new_disney_data = {
'title': titles,
'year': years
}
print(new_disney_datimport random
class rolling(object):
def roll(self):
return random.randint(1, 6)
class Player(object):
PlayerList = []
SquareNum = []
other = []
def __init__(self, name):
self.name = name
sfrom ctypes import c_int, py_object
# Array of (three) integers initialized such that
# a[0] = 1, a[1] = 2, a[2] = 3.
a = (c_int * 3)(1, 2, 3)
# Array of (three) arbitrary Python objects initialized
# such that a[0] = "Pizza", a[1] = 5for YearItem in years:
for item in months:
# variable 'vars1' is assigned a new tuple in every iteration.
# 1. iteration: vars1 = ('01 JAN 2020')
# 2. iteration: vars1 = ('01 FEB 2020')
from scipy.optimize import minimize
def func(zz, *params):
x,y,z = zz
a,b,c = params
eq_1 = (((3.47-np.log10(y))**2+(np.log10(c)+1.22)**2)**0.5) - x
eq_2 = ((a/101.32) * (101.32/b)** z) - y
eq_3 = (0.381 * x + 0.0@app.get("/ping")
def ping(request: Request):
#print(request.client)
print("Hello")
time.sleep(5)
print("bye")
return "pong"
import asyncio
@app.get("/ping")
async def ping(request: Request):
concepts = fr"({'|'.join(tofind)})"
df['Indexes'] = df['Abstract'].str.findall(concepts).str.join(', ')
print(df)
# Output
Abstract Indexes
0 black and small cat black, small
tofind = ['smallWebDriverWait(driver, 60).until(EC.visibility_of_element_located((By.XPATH, '//tr[@class = "course-row normal faculty-BU active"]')))
time.sleep(0.4) #short delay added to make ALL the elements loaded
elements = driver.find_element(By.XPATdf['Track3'] = df.apply(lambda x: x["MENU_HINT"][x["MENU_HINT"].find('/ ') + 1:x['EndPos']], axis=1)
df['Track3'] = df["MENU_HINT"].apply(lambda x:re.search(r"[A-Za-z]+ / ([A-Za-z | ( | )]+)", x).group(1))
<Community Discussions
Trending Discussions on concepts
QUESTION
There are a number of different ways, that make a type/class usable in a ranged for loop. An overview is for example given on cppreference:
range-expressionis evaluated to determine the sequence or range to iterate. Each element of the sequence, in turn, is dereferenced and is used to initialize the variable with the type and name given in range-declaration.
begin_exprandend_exprare defined as follows:
- If
range-expressionis an expression of array type, thenbegin_expris__rangeandend_expris (__range+__bound), where__boundis the number of elements in the array (if the array has unknown size or is of an incomplete type, the program is ill-formed)- If
range-expressionis an expression of a class typeCthat has both a member namedbeginand a member namedend(regardless of the type or accessibility of such member), thenbegin_expris__range.begin()andend_expris__range.end()- Otherwise,
begin_exprisbegin(__range)andend_exprisend(__range), which are found via argument-dependent lookup (non-ADL lookup is not performed).
If I want to use a ranged for loop say in a function template, I want to constrain the type to be usable in a ranged for loop, to trigger a compiler error with a nice "constraint not satisfied" message. Consider the following example:
...ANSWER
Answered 2022-Apr-14 at 09:51It seems like what you need is std::ranges::range which requires the expressions ranges::begin(t) and ranges::end(t) to be well-formed.
Where ranges::begin is defined in [range.access.begin]:
The name
ranges::begindenotes a customization point object. Given a subexpressionEwith typeT, let t be an lvalue that denotes the reified object forE. Then:
If
Eis an rvalue andenable_borrowed_range>isfalse,ranges::begin(E)is ill-formed.Otherwise, if
Tis an array type andremove_all_extents_tis an incomplete type,ranges::begin(E)is ill-formed with no diagnostic required.Otherwise, if T is an array type,
ranges::begin(E)is expression-equivalent tot + 0.Otherwise, if
auto(t.begin())is a valid expression whose type modelsinput_or_output_iterator,ranges::begin(E)is expression-equivalent toauto(t.begin()).Otherwise, if
Tis a class or enumeration type andauto(begin(t))is a valid expression whose type modelsinput_or_output_iteratorwith overload resolution performed in a context in which unqualified lookup forbeginfinds only the declarations
QUESTION
I was playing around with some API concepts and noticed something peculiar in Rust's Iterator trait.
I have the following trait definition:
...ANSWER
Answered 2022-Apr-11 at 00:51A similar question was asked over on the Rust forum. To summarize, the full signature for Iterator::for_each is
QUESTION
I am trying to understand overloading resolution in C++ through the books listed here. One such example that i wrote to clear my concepts whose output i am unable to understand is given below.
...ANSWER
Answered 2022-Jan-25 at 17:19Essentially, skipping over some stuff not relevant in this case, overload resolution is done to choose the user-defined conversion function to initialize the variable and (because there are no other differences between the conversion operators) the best viable one is chosen based on the rank of the standard conversion sequence required to convert the return value of to the variable's type.
The conversion int -> double is a floating-integral conversion, which has rank conversion.
The conversion float -> double is a floating-point promotion, which has rank promotion.
The rank promotion is better than the rank conversion, and so overload resolution will choose operator float as the best viable overload.
The conversion int -> long double is also a floating-integral conversion.
The conversion float -> long double is not a floating-point promotion (which only applies for conversion float -> double). It is instead a floating-point conversion which has rank conversion.
Both sequences now have the same standard conversion sequence rank and also none of the tie-breakers (which I won't go through) applies, so overload resolution is ambigious.
The conversion int -> bool is a boolean conversion which has rank conversion.
The conversion float -> bool is also a boolean conversion.
Therefore the same situation as above arises.
See https://en.cppreference.com/w/cpp/language/overload_resolution#Ranking_of_implicit_conversion_sequences and https://en.cppreference.com/w/cpp/language/implicit_conversion for a full list of the conversion categories and ranks.
Although it might seem that a conversion between floating-point types should be considered "better" than a conversion from integral to floating-point type, this is generally not the case.
QUESTION
The syntax that works for classes does not work for concepts:
...ANSWER
Answered 2022-Jan-24 at 04:06Because it would ruin constraint normalization and subsumption rules.
As it stands now, every concept has exactly and only one definition. As such, the relationships between concepts are known and fixed. Consider the following:
QUESTION
Both replica set and deployment have the attribute replica: 3, what's the difference between deployment and replica set? Does deployment work via replica set under the hood?
configuration of deployment
...ANSWER
Answered 2021-Oct-05 at 09:41A deployment is a higher abstraction that manages one or more replicasets to provide controlled rollout of a new version.
As long as you don't have a rollout in progress a deployment will result in a single replicaset with the replication factor managed by the deployment.
QUESTION
I've got the following implementation of the c++ concept move_constructible from cppreference
ANSWER
Answered 2021-Nov-22 at 07:21Most traits/concepts automatically add && to the types of "source" arguments (things that are passed to functions, as in std::is_invocable, or constructed from, as in std::is_constructible).
I.e. constructible_from is equivalent to constructible_from (&& is automatically added to the second argument, but not to the first), and convertible_to is equivalent to convertible_to.
Note that if a type already includes &, adding && to it has no effect. So, while T and T && are equivalent here, T & is not.
This can be inferred from those traits/concepts being defined in terms of std::declval(), which returns T &&.
For the reason why std::declval() returns T &, see reference collapsing.
QUESTION
Haskell lists are constructed by a sequence of calls to cons, after desugaring syntax:
ANSWER
Answered 2021-Aug-30 at 04:46Lists in Haskell are special in syntax, but not fundamentally.
Fundamentally, Haskell list is defined like this:
QUESTION
Given the following setup:
...ANSWER
Answered 2021-Aug-25 at 20:17There are no objects of function types. The type will be adjusted to be a function pointer, which is why you delegated{func} and delegated{func_ptr} are exactly the same thing and former cannot be smaller.
Wrap the function call inside a function object (lambda, if you so prefer) to avoid the overhead of the function pointer.
If you would like to prevent the accidental use of the adjusted/decayed function pointer case when user tries to pass a function, then you could use a deleted overload for function references. I don't know how that could be achieved with CTAD, but if you provide a function interface, it could be done like this:
QUESTION
I've scrolled and searched through the standard and cppreference for hours to no avail, would really appreciate if someone could explain this occurance for me:
I am looking at the standard concept std::convertibe_to. Here's a simple example that I do understand
ANSWER
Answered 2021-Aug-23 at 15:55void foo( constraint auto x );
QUESTION
C++20 allows the program to specify concept for template template argument. For example,
...ANSWER
Answered 2021-Aug-02 at 19:53A template (actual) argument matches a template (formal) parameter if the latter is at least as specialised as the former.
template typename T is more specialised than template struct S. Roughly speaking, template accepts a subset of what template accepts (the exact definition of what "at least as specialised" actually means is rather involved, but this is a zeroth approximation).
This means that the actual argument can be used in all contexts where the formal parameter can be used. That is, for any type K for which T is valid, S is also valid (because S is valid for any K).
So it is OK to substitute S for T.
If you do it the other way around:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install concepts
You can use concepts like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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