All Questions
641 questions
0
votes
2
answers
106
views
Making a Diagonal matrix with desired shape
How to make a random elements digonal matrix in a numpy array with the desired shape, for example I want to make F to be a numpy array with shape (3, 2, 4, 4), and the diagonal matrix dimensions 4*4 ...
0
votes
1
answer
43
views
How can i add the column name in every sheet of excel file in python
I have 6 sheets in my excel file and i need to copy the date from file name and append the same in every sheet as new column as date.but with this code i can change only in first sheet.
import os
...
- 39
-2
votes
2
answers
162
views
Sort the coordinates of points by areas that they occupy (Python)
Suppose we have a particular number of points distributed in the plane at the nodes of a grid having a given step. These points form several continuous regions.
We can tell that points (if there is ...
-5
votes
2
answers
1k
views
In Python in what ways can u make an empty NumPy array? [closed]
(https://i.sstatic.net/eakU9.jpg)
To make an empty Numpy the array
0
votes
1
answer
3k
views
How can I read image name from a specific folder?
I want read image name like flower.png unnamed.png. Is there any way that I can read all images images one by one like we can read text file with open ("data.txt", "r") as myfile:
...
1
vote
2
answers
616
views
timm: typeError: 'builtin_function_or_method' object is not subscriptable
I am implementing timm tutorials on data augmentation to increase the number of images of my dataset. According to their tutorials, I have implemented same code but it did not work.
Code
import numpy ...
- 2,924
-3
votes
1
answer
134
views
How to shuffle a list with specific order ? and i also want user input and simple solution
Write a program to have a function called triple_shuffle () that takes three lists of the same size and shuffles them concurrently.
Given list like [10,20,30,40,50], [11,22,33,44,55], and [19,18,17,16,...
- 13
-1
votes
1
answer
60
views
python program to get n unique sequence number within a range
the input is the range and total number needed.
consider input range is (0,1)
if the total number needed is 10.Then output should be an array containing 10 values between 0 to 1. including 0 and 1.
if ...
- 57
0
votes
4
answers
46
views
I want to compare list of two cities and if list B cities are not present in list A then should append in list A using python
A=['mumbai','delhi','jaipur']
B=['mumbai','kolkata','pune']
I want to compare list A and list B and if list B cities are not in list A then we should able to append those cities in list A
- 15
1
vote
2
answers
3k
views
Array updating problem for using map(int,input().split()) in python [duplicate]
for taking list input in the array I used
map(int,input().split())
but for using this input method I can't modify the array if I Iterated like a[I] then it shows
TypeError: 'map' object is not ...
- 67
0
votes
1
answer
84
views
Syntax Error:Creating An 2d List Filled With Zero
How Could I Initialize An 2D List Filled With Zeroes Without Any Additional Library/Module
here what is my attempt
table = [0 for i in range(amount + 1)[0 for j in range(len(coins))]]
it works in ...
-2
votes
1
answer
325
views
Circular integration Python
I need to calculate this integral in Python:
where
Etax and rho are arrays calculated at each position in s which is an array representing every point in a circle.
My question is how to calculate ...
- 27
0
votes
4
answers
3k
views
checking two arrays in python which has two same value in an array
I have two arrays and I'm trying to find values that are in the first array but not in the second array. However, there is a problem, although there are two b's in the first array, since there is ...
- 1
-2
votes
1
answer
540
views
How to load the sequence of image in python? [closed]
import S1-T1-C.00000
Image.open('C:/Users/Vims/Desktop/7th sem/ISA/Lab_1/sequence/sequence')
I have set of image sequence or video. I would like to load in the python code. How can I do it? After ...
- 57
-1
votes
1
answer
3k
views
Write a python program that will take a string as input from the user. The input string should have a combination of BOTH the alphabets and the digits
Write a python program that will take a string as input from the user. The input string should have a combination of BOTH the alphabets and the digits. Then, your task is to identify the digits from ...
- 13
0
votes
1
answer
230
views
Finding non existing fields from an array in another array
I'm writing a code that has 2 python arrays, svslist and prlist. For the purposes of this task, I'm supposed to be finding values that exist in the svslist array but not in the prlist array.
So far I'...
- 150
0
votes
0
answers
45
views
how to handle else part in python
Hi I have a code below and want to put 'N/A' in CSV if there is no key is present.
tried adding else part after if but getting added N/A values at the end of each row. Can anyone suggest how to handle ...
- 41
0
votes
1
answer
3k
views
Parsing JSON - TypeError: string indices must be integers
I need to retrieve GoDaddy certificates name and expiration dates. I`m trying code like this:
def get_cert():
customerId = "UUID"
cert_url = "https://api.godaddy.com//v2/...
- 1
0
votes
1
answer
43
views
How can I arrange this 3D array data if its randomly written
I have a data for electricity, its arranged as the following
room timing 1 timing 2. timing 3 timing 4 timing 5 timing6
1 34.5. 22.1. 34....
- 19
0
votes
4
answers
1k
views
how to find 3 Numbers with Sum closest to a given number
I'm trying to write simple code for that problem. If I get an array and number I need to find the 3 numbers that their sum are close to the number that's given.
I've thought about first to pop out the ...
- 73
2
votes
2
answers
269
views
How to delete those 1D lists within a 2D list which contains with duplicate 1st element?
Say I have a 2D list(of floats only)-
a=[[1,2],[1,3],[2,5],[4,3],[3,4],[4,9]]
and I want to remove those 1D lists which have the common 1st element and occur later. For example- the first list [1,2] ...
- 317
0
votes
2
answers
197
views
List within single quotes [duplicate]
I have a list which is in single quotes.
'[{"Name":"name1","value":"value1"},{"name":"name2","value":"value2"}]'
I ...
0
votes
3
answers
797
views
How do I remove Spaces from nested list created with for loop?
I have created a nested list using for loop. I used the following code:
'''
a=[]
for i in range(1,5+1):
a=a+[[1]*i]
print(a)
'''
And the output is:
How do I remove these spaces before every ...
user12065050
0
votes
1
answer
46
views
how does this line 2d array to 1d array conversion work? [duplicate]
I am able to get it to work but I don't understand how it works
li=[[0,1,2],[3,4,5],[6,7,8]]
li2 = [ y for x in li for y in x]
output:
li2: [0,1,2,3,4,5,6,7,8]
- 31
0
votes
1
answer
4k
views
Appending into an empty JSON file in python
I already have a JSON file which I am parsing using Python 2.7 and I want to dump the parsed out data into another empty JSON file. I am using a for-loop to parse out the data from the old JSON file ...
- 67
0
votes
0
answers
24
views
Using either a single entry in an array changes result compared to using just a float variable
I'm coding with python2 and trying to convert cartesian coordinates to polar coordinates. Originally I did not care about the original x and y values and so saved over them in every loop of my ...
- 1
1
vote
1
answer
760
views
discord.py commands aren't working (no errors given)
(Code below is just for entertaining purposes only. Do not use this in discord servers). I honestly have no clue why it isn't working. When I open a new python file with the exact same code, it works. ...
0
votes
1
answer
177
views
3 dimensional arrays in python
I am trying to create a 3 dimensional matrix with 400 elements in one dimension and, 4 and 4 in the other two dimensions.
I have crated the array as
clij_the = np.zeros((400,4,4))
And then I assign ...
- 27
0
votes
0
answers
39
views
how to change the data of an array without losing initial data in python? [duplicate]
I am trying to execute this python code below, and i see the data of the 2-d array "grid" , is changing after the fourth print statement. I don't understand why it is changing . can anybody ...
- 21
0
votes
2
answers
72
views
Python how to pick 3rd occurence in nested json array
I am working with one of my requirement
My requirement: I need to pick and print only 3rd "id" from "syrap" list from the nested json file. I am not getting desired output. Any help will be ...
- 13
0
votes
1
answer
1k
views
Converting 2 array objects as key - value pair in JSON object using PYTHON [duplicate]
I have 2 different arrays:
dataList = ['a_cout', 'b_count', 'c_count']
dataList1 = [15404, 21381, 3]
I am trying to merge them into a json object as Key-Value pair like :
'{
"a_count" : 15401,
"...
- 55
0
votes
1
answer
66
views
How can a Python 2.7 string be interpreted as an integer like in C char array?
In C, a character array could be referenced by an int * or cast to be interpreted as an integer value. Here's a small example program:
#include <stdio.h>
int main() {
char *str = "AABB";
...
- 117
0
votes
0
answers
20
views
How can I fix this "The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()"? [duplicate]
I wrote this for comparing two arrays and find #𝑜𝑓|𝑐𝑜𝑒𝑓𝑓𝑖𝑐𝑖𝑒𝑛𝑡𝑠|≥|𝑜𝑏𝑠𝑒𝑟𝑣𝑒𝑑_𝑐𝑜𝑒𝑓𝑓𝑖𝑐𝑖𝑒𝑛𝑡| :
count = 0
for a in range(len(coeffs)):
for b in range(len(...
0
votes
0
answers
39
views
Is a python dictionary the best data type for associating numerical values with a numpy array?
Lets say I have four large numpy arrays (the contents of which don't matter for now):
array1 = np.array([stuff1])
array2 = np.array([stuff2])
array3 = np.array([stuff3])
array4 = np.array([stuff4])
...
- 137
-1
votes
2
answers
73
views
Replacing certain parts of Array in different folders via Pythion
My code does the replacement for the entire file. Whereas I want only certain replacements.
Below is the file I'm trying to replace. I just want to change some words in "sheetname" : "...
- 31
2
votes
2
answers
647
views
Check for reverse pair repetition in two arrays in python
I have two arrays as follows:
a = [1, 1, 1, 2, 2, 3, 3, 3, 4, 4, 5, 5]
b = [1, 2, 5, 1, 3, 2, 3, 4, 3, 5, 1, 4]
All the possible pairs these two arrays can form are (a[0],b[0]),(a[1],b[1]),(a[2],b[2]...
- 165
1
vote
1
answer
2k
views
len() of np.array gives TypeError: len() of unsized object
I need to update a rather large python 2.7 project to python 3. Disclaimer, I'm new to python and this is a task I was given to learn the ins and outs of this language. The tricky part is the ...
- 101
0
votes
2
answers
59
views
Is it possible to save 4 variables that hold sliced arrays into a single variable?
(Noob) I have a program that takes an array and slices certain elements depending on their individual functionalities and then arCalc operates on them. Returning all those values from arSlice doesnt ...
2
votes
0
answers
41
views
Calling modules and passing back data in python
I am running into another issue where when i call a module containing a port scanner that returns an array of open ports, instead getting anything back the application closes. I have tried using ...
- 37
0
votes
2
answers
705
views
how can I get json value select from multiple values with python and jq
I have been struggling with json stuff. I have "unit_number" and "key" values and I want to find backing_uuid based on the unit_number and key values. How can I do that with python? I think like this ...
- 131
0
votes
2
answers
261
views
Match array of strings to 2D array
I have a 1D array of strings (gene_name_list). I need to find rows in another 2D array (fully_split) where each string of the first array is present. Of course I can solve it brute force like that:
...
- 4,342
1
vote
2
answers
452
views
Python 2.7: Max digit sum with negative integers
I'm building a program where it takes in n, the size of the array, and an array, A as input.
The output should be the index of the integer with largest digit sum
I was able to get it to print ...
- 304
1
vote
1
answer
158
views
Unpacking byte values in Python
I am attempting to unpack the below data but cannot seem to figure it out.
This is byte data being returned from a digital sound mixer reading meter values from the device.
The documentation suggests ...
- 13
1
vote
1
answer
167
views
Parsing JSON with Python, trouble with an array of arrays
I've got a JSON structure that looks like the following
{
"PersonInformation": {
"PhysicalStatus": "",
"OpenDetainers": [],
"StartDate": "",
"FacilityLog": [],
"CustStatus": "",
...
- 1,745
0
votes
1
answer
919
views
How to overplot in python?
I have a function f(n,x)=n(x+x**2) with 0<=x<=1 and n=0,1,..,9. And using 100 points for x (delx=1/100) would like to over-plot the graph on f(x) for each value of n.
These are my codes
import ...
0
votes
1
answer
877
views
How to convert an array of Booleans to a string representation?
I'd like to convert imagehash array of booleans like this:
array([[False, False, False, True, False, False, True, True],
[False, False, False, True, True, True, True, True],
[...
- 809
1
vote
3
answers
73
views
Python converting txt in array
I'm reading a .dat file from a samba file server that contains some wind sensor data. That file contains a header with some information (lines 1,3 and 4), a line with sensors names on it (2nd line), ...
- 89
-1
votes
1
answer
2k
views
Array convert to string in views django
i have a array in Django views and i want to convert into comma separated string, to save data into DB field like all in one.
array[0] = "Ford";
array[1] = "Volvo";
array[2] = &...
- 138
2
votes
0
answers
45
views
Arrays changing value when saving to / opening h5 files
I am trying to train a CNN classifier in Caffe on image data however when I save my images to h5 format to insert into my first Caffe layer, there is a small chance one or two of my array's will have ...
- 161
0
votes
1
answer
827
views
Import & Read excel file with Statrtswith any specific string("TRUE")
I am trying import & read Excel file which start with name "TRUE".
but actually it complete name is TRUE_management.xlsx
import os
import pandas as pd
files=os.listdir(r'C:\')
for f in files:
...
- 136