Latest Questions

System of linear equations Thomas algorithm Java

I have adapted the Thomas Algorithm for solving the tridiagonal matrix problem i.e. finding the value of the vector T in the equation AT = b where A and b are k

Jest Testing - mockReset does not clear the already set values

I have a lambda which calls an interface. Am trying to mock the functions imported from the interface. In each test case, I have to mock different values. When

How to transform columns with method chaining?

What's the most fluent (or easy to read) method chaining solution for transforming columns in Pandas? (“method chaining” or “fluent” is

How to join three (multipe) collections with $lookup in mongodb?

How to join three (multipe) collections with $lookup in mongodb? Hi I am looking to join data from three collection users collection: [ { _id:0, name:"abc", pho

Access Query Left join with Inner join and 'And' Clause

I have 3 tables I'm trying to join, and the final table may be missing a record. I'm trying to determine if it's there or not. Notice how table 3 doesn't have a

SpringFox version compatibility with spring boot and Jersey

Configuring Swagger UI for a Jerysey + Spring boot application is complicated due to common dependencies. Is there any documentation, that provides version comp

Create different xlsx sheet header colors in R

I would like to have different header colors for the xlsx sheet I'm creating. However, I'm only able to create a single color for the header with the below code

How to handle if <![CDATA[ ]]> is null/empty?

I want to convert xml data into JOSN format but there is an issue if I try to do that. simplexml_load_string() returns empty data once after it perhaps get <

Can't add reference to System.Windows.Forms to .NET 5.0 Xunit unit test project

I have a solution in Visual Studio 2019 containing a WinForms .Net Framework 4.8 project and a .Net 5.0 test project. The WinForms project contains all my windo

PHP str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated

Dear all Iam getting this error on while run my app. Here below i attached the image file for the code that shows error {"data":[ ["omron","<span class=\

PyQT customizing specific ScrollBar

I would like to apply different colors to my scrollbars depending on their parent QListView, and I would like to do this from "higher level" than the QListView

Python/Pandas Add string to rows in a column that contain a character a specific number of times

I have a Pandas DataFrame(data) with a ['Duration'] column as 'object' type that has time durations in format: 'H:%M:%S' such as '1:47:54' with 7 characters, bu

Issue with Power BI dataset refresh

I am using Azure Logic App workflows to refresh a Power BI dataset every 5 minutes. The workflow was working for several weeks without any issues . But since la

How can I navigate to next list item on a new page?

I have a list that I fetch from a provider file and display using ListView builder. The LIST page displays only the title of the item on the list and clicking o

Symfony 6 development with Docker on Mac

I'm starting a new project on Symfony 6. Every time I make a change to the project, var/cache is completely rebuilt, therefore the next request to the app alway

how to correctly write vector to binary file in c++?

first sorry for my bad english. i am just joined this forum and search for how to correctly write vector to binary file. i just got from this forum an answer li

How to download private repo from Dockerfile with bitbucket and golang project

I want download a private repository from bitbucket, but get some error fatal: could not read Username for 'https://bitbucket.org': terminal prompts disabled h

BigQuery table creation from google cloud storage

I am trying to create a table in Google BigQuery Table in the console. I have given the correct GCS bucket address where the CSV resides. The CSV is about 140GB

Adding new dataframe colonms using information extracted from the url in the url column, but the url could be missing information

Given: A pandas dataframe that contains a user_url column among other columns. Expectation: New columns added to the original dataframe where the columns are co

Error: wsl.exe exited with code 4294967295 on Installing Rancher Desktop

I am getting the below error when installing the latest stable Rancher Desktop in my Virtual Machine. Could someone please help? Error: Error: wsl.exe exited w

Unable to create AWS CloudFormation stack

I am changing the Node version of my project to 14 and trying to custom deploy it to my staging environment for testing. But after changing the version to 14, I

how to move placeholder to top on focus and while typing

I am trying to implement a simple input box where when I click on the box the placeholder value moves to the top but have an issue that it always shows on top.

Import “nextcord” could not be resolved

I have just installed nextcord, but when I try to import it to code it says: “Import “nextcord” could not be resolved” please help me.

Does Windbg display addresses as virtual or physical when issuing a command such as

Would someone be able to clarify whether when you type a command at the Windbg command prompt are the 64 bit addresses displayed in the very first column virtua

Mimicking compile time interfaces in python

Summary This question first uses Java examples to demonstrate what I am trying to achieve, then shows Python equivalents where I attempt to replicate the compil

How do I use ffmpeg to concatenate 2 videos and add a period of silence + black screen between them?

There are several existing examples, but I'd like a single command that uses complex_filter to achieve the objective without doing extra things like generating

How to detect ID Card in react native

I'm trying to detect ID Card in react native Everything. I found was Payed Libraries that scan id card and OCR at the same time but my use only to check if this

listen EACCES: permission denied 127.0.0.1:80 - macOS

I need to serve an angular app with specific --host flag and --port 80. I added the host to my /etc/hosts file but when i use command "ng serve --host local.xxx

Sharepoint: Lookup against a large list with CAML Query

I have a SharePoint List (list_dls) which has all the Email addresses. The list has a single column with Field name "Title". I need to validate that the Item in

AttributeError: 'BaseModel' object has no attribute '_sa_instance_state'

I have the following code in my app: models.py class MainTable(Base): __tablename__ = "main_table" id = Column(Integer, primary_key=True, index=True)