tuples Questions
2
Solved
In python, I can write something like this:
some_list = [(1, 2, 3), (3, 2, 1)]
for i, *args in some_list:
print(args)
I will get the next output:
[2, 3]
[2, 1]
When we use *args as function arg...
Malanie asked 29/10, 2021 at 7:34
6
Solved
I've got a Pandas DataFrame and I want to combine the 'lat' and 'long' columns to form a tuple.
<class 'pandas.core.frame.DataFrame'>
Int64Index: 205482 entries, 0 to 209018
Data columns:
Mo...
11
With Sqlite, a select .. from command returns the results output, which prints:
>>print output
[(12.2817, 12.2817), (0, 0), (8.52, 8.52)]
It seems to be a list of tuples. I would like to eit...
18
Solved
I have a tuple called values which contains the following:
('275', '54000', '0.0', '5000.0', '0.0')
I want to change the first value (i.e., 275) in this tuple but I understand that tuples are immu...
6
Solved
I used an answer to the SO question "iterate over tuple" to write a method to overload <<. This method was tested and appears to work correctly with g++ 4.7 on Debian squeeze.
However this m...
Hypothermal asked 12/2, 2012 at 9:25
6
Solved
I need a queue of (string, int) pairs. That's easy enough:
type job struct {
url string
depth int
}
queue := make(chan job)
queue <- job{url, depth}
are there built-in pair/tuple data types ...
2
Solved
I have two numpy arrays:
x = np.array([-1, 0, 1, 2])
y = np.array([-2, -1, 0, 1])
Is there a way to merge these arrays together like tuples:
array = [(-1, -2), (0, -1), (1, 0), (2, 1)]
5
Solved
In the below example I would expect all the elements to be tuples, why is a tuple converted to a string when it only contains a single string?
>>> a = [('a'), ('b'), ('c', 'd')]
>>&...
3
Solved
What is the relationship between reference of tuple and tuple of reference as types?
Why does the first works but the second doesn't?
let a = 1;
let b = 2;
// This works, c: &i32, d:&i32
le...
Caresa asked 29/3, 2023 at 16:53
4
Solved
I'm walking through basic tutorials for matplotlib, and the example code that I'm working on is:
import numpy as np
import matplotlib.pylab as plt
x=[1,2,3,4]
y=[5,6,7,8]
line, = plt.plot(x,y,'-...
Wayworn asked 24/5, 2013 at 20:1
4
Solved
I have this:
interface Obj {
foo: string,
bar: number,
baz: boolean
}
The desired type is this tuple:
[string, number, boolean]
How can I convert the interface to the tuple?
Update:
My o...
Rae asked 17/10, 2018 at 12:43
37
Solved
Is there a good reason why there is no Pair<L,R> in Java? What would be the equivalent of this C++ construct? I would rather avoid reimplementing my own.
It seems that 1.6 is providing somet...
2
Solved
So I have been writing a code to standardize the elements of a matrix and the function I used is as follows:
def preprocess(Data):
if stdn ==True:
st=np.empty((Data.shape[0],Data.shape[1]))
for ...
Looker asked 17/12, 2016 at 11:34
3
Solved
I have a 2D numpy array called results, which contains its own array of data, and I want to go into it and use each list:
for r in results:
print "r:"
print r
y_pred = np.array(r)
pri...
13
Solved
This is a follow-up to my previous question on pretty-printing STL containers, for which we managed to develop a very elegant and fully general solution.
In this next step, I would like to inclu...
Deianira asked 5/6, 2011 at 20:43
3
Solved
Is there a more concise way of doing the following?
t = (1,2,3)
t2 = (4,5)
l.addAll(t)
l.addAll(t2)
print l # [1,2,3,4,5]
This is what I have tried so far: I would prefer to avoid passing in th...
4
I am creating a loop in order to append continuously values from user input to a dictionary but i am getting this error:
AttributeError: 'dict' object has no attribute 'append'
This is my code ...
Kafiristan asked 12/1, 2018 at 21:50
6
Solved
I have used pd.pivot_table in pandas dataframe, and the column names becomes tuples like ('A1', 'B1'), ('A1', 'B2'), ..., and I want them to be like 'A1_B1', 'A1_B2', ...
I tried to use
df.columns....
2
Solved
I'm attempting to transform a Tuple union in TypeScript to an object, without losing any types.
Here is an example of how it would work:
type Tuples = ["foo", string] | ["bar", boolean] | ["baz",...
Heinrick asked 11/7, 2019 at 12:16
8
Solved
I'm trying to convert a list to a tuple.
Most solutions on Google offer the following code:
l = [4,5,6]
tuple(l)
However, the code results in an error message when I run it:
TypeError: 'tup...
14
Solved
How can I convert a list with (say) 3 elements into a tuple of size 3?
For example, let's say I have val x = List(1, 2, 3) and I want to convert this into (1, 2, 3). How can I do this?
5
Solved
So I was trying to use enums in python and came upon the following error:
When I was using enum as a tuple and giving it two values, I can't access only one value such as tuple[0]
class Rank(Enum)...
3
I am having trouble converting a df column into a tuple that I can iterate through. I started with a simple code that works like this:
set= 'pare-10040137', 'pare-10034330', 'pare-00022936', 'par...
1
Solved
I'm trying to zip tuples together and use match types to get the exact type of the resulting zip. I have a match type and the function:
type Z[A <: Tuple, B <: Tuple] <: Tuple = (A, B) ma...
Human asked 5/2, 2023 at 20:48
4
Solved
I've been using Python for some time already and today while reading the following code snippet:
>>> a = (1,2)
>>> a += (3,4)
>>> a
(1, 2, 3, 4)
I asked myself a quest...
Kozak asked 25/9, 2013 at 21:44
© 2022 - 2024 — McMap. All rights reserved.