Latest Questions

How to get the previous rows close and apply it to the next row in a new column called previous close

I have a bunch of daily ohlc data like so: date,volume,open,close,high,low 2022-05-02,1756159.0,118.38,119.57,120.34,116.49 2022-05-03,3217838.0,119.72,122.4,12

How to perform validation in reactive form with nested form arrays in table with angular?

Stackblitz link: https://stackblitz.com/edit/angular-ivy-bafyye?file=src/app/components/user-details/user-details.component.ts I have created nested reactive fo

How to use ceres-solver to solve high dimensional non-linear problem?

     I need to solve the optimization problem: . A and b are known. I use Zero to represent A and b to facilate the expression in the follow

Mac Terminal Wont Open When I'm Using QT Creator Anymore

Before I updated both QT and Xcode on my mac, my computer just stopped opening up the terminal when I went to run my code. It had worked for months and is still

Seam forming between adjacent SVG images in flexbox

I have split a single SVG image into parts and placed them in a single row of a CSS flexbox. The goal is to keep a constant height but allow the width to change

PIL opens only first chanel of TIF image

I'm trying to open (and then process) a 3-channel Tif image (8-bits) created with ImageJ. im = Image.open('spinal.tif') im.show() shows me a png for the first

Add new tag to the middle of element

I am trying to surround specific words in textContent with HTML tags, this could hypothetically be done by doing element.textContent = element.textContent.repla

why plotting a (112,112,2) in matplotlib using imshow() is not possible?

why is it that we can not plot a matrix that has the shape (112,112,2) but doing it for shapes such as (112,112,3)is ok ? TypeError: Invalid shape (112, 112, 2)

Copy value of a local variable to a global variable [duplicate]

I have this variable declared in global scope: export class InboxmanagementComponent implements OnInit { statmentID: number; // global vari

Springboot docker-compose redis Cannot get Jedis connection;

This may seems as duplicate of docker-compose with springboot and redis and docker-compose redis connection issue but the solutions proposed there are not worki

df.to_parquet() | Can I get .parq Bytes from Dataframe?

Goal: Get the Bytes of df.to_parquet() for upload. I attempted: import pandas as pd import io df = pd.DataFrame({'A': [1, 2, 3, 4, 5], 'B':

PIL opens only first chanel of TIF image

I'm trying to open (and then process) a 3-channel Tif image (8-bits) created with ImageJ. im = Image.open('spinal.tif') im.show() shows me a png for the first

How to use UserDefaults inside a swift package that can fetch data from main Swift codebase?

I have a package (say, "PackageDemo") that is imported inside my application (say, "ApplicationDemo"). I have some methods in PackageDemo that needs data to be

How to use UserDefaults inside a swift package that can fetch data from main Swift codebase?

I have a package (say, "PackageDemo") that is imported inside my application (say, "ApplicationDemo"). I have some methods in PackageDemo that needs data to be

Itext 7 bug with GetCtm() on pages>1

Context: extract text from a pdf using the IEventListener - TextRenderInfo a pdf document with more than one page c# .net core program Issue: To calculate the e

Javascript request animation frame irregular translation

SO community! I'm trying to make an object move at the same phase as scroll using CSS transform. The problem is that I see the animation is not smooth. Instead,

How to convert the accumulated data of 'fflate' zip stream to blob for download

The application will create a large data in GBs. After storing to an array and the passing to zip() worked to a limit , which the heap filled. So my plan is con

Writing Python output as xlsx

I want to execute same function (gives output A, B, C, D) for all the files (library) available in the given path. I am trying write the output (A,B,C,D) in fou

Writing Python output as xlsx

I want to execute same function (gives output A, B, C, D) for all the files (library) available in the given path. I am trying write the output (A,B,C,D) in fou

SQL executeUpdate() seems to commit data, but that is not the case. How can I find my error?

I curently work on few SQL queries (MSSQL 2O14), but only "SELECT" query works with executeQuery(). I had use execute() and executeUpdate() on "INSERT INTO" and

Tableau Top N set to 10 of group set is showing more than 10

How can I get top 10 results of my longest rides to date or filter the results to grab distinct string which would be the [Title] of the bike ride? Is there a c

Object not declared in this scope error in cpp?

I'm getting error SPIGtestMain.cpp:"MockObj not declared in this scope" though I've declared it globally in with extern keyword in SPIGtestMain.cpp file. SPIG

How to draw on an image Tkinter canvas, PIL

I would want to be able to draw on an image being displayed by a tkinter canvas PIL. I tried google searching but all the results would be how to draw on an ima

Object not declared in this scope error in cpp?

I'm getting error SPIGtestMain.cpp:"MockObj not declared in this scope" though I've declared it globally in with extern keyword in SPIGtestMain.cpp file. SPIG

Can these regexes cause catastrophic backtracking? [duplicate]

I'm new to regexes. I am using these regexes throughout my android project. Can any of these cause the catastrophic backtracking? To check for

Adding a step in AWS EMR with --files option fails

I am adding a step into my EMR cluster using CLI as below: aws emr add-steps --cluster-id j-258HYT78FYMWG --steps Type=Spark,ActionOnFailure=CONTINUE,Args=[--py

Crashing when asking audio permission in iPhone 6s, iPhone 8 plus and iPhone XR

In iPhone 6s, iPhone 8 plus and iPhone XR with iOS 14.8.1 and 15.3.1, app is crashing when click on audio button. At this time it is asking permission. I follow

How can we write method to read integers from a Scanner stream?

My goal is to implement a method named add that receives a reference to a Scanner object associated with a stream of input consisting of integers only. The meth

Sending log4j logs in stdout to fluentd container and search logs in splunk

I am trying to send logs(in stdout) from a pod to the fluentd container in it. I a pod i have 2 containers among which 1 is fluentd. It works if i have a file i

i dont get SettingWithCopyWarning [duplicate]

I love pandas and have been working in the library for years now, but I have never understood SettingWithCopyWarning or its documentation. In