RData | Data Analysis and Visualization Using R : Course website | Data Visualization library

I was running some tests to compare C to Java and ran into something interesting. Running my exactly identical benchmark code with optimization level 1 (-O1) in a function called by main, rather than in main itself, resulted in roughly double performance. I'm printing out the size of test_t to verify beyond any doubt that the code is being compiled to x64.

I sent the executables to my friend who's running an i7-7700HQ and got similar results. I'm running an i7-6700.

Here's the slower code:

while using axios I have a post where I get a response but when I want to return the response to my other function it shows up as undefined any clues? on how I can fix it.

Below is code I use to calculate the average of a stream of data within a List of objects:

I wrote a golem app and wanted to deploy it on the shinyapp.io. Unfortunately, every time I try to do it the following error comes up (in logs):

Warning in loadSupport(appDir, renv = sharedEnv, globalrenv = NULL) : Loading R/ subdirectory for Shiny application, but this directory appears to contain an R package. Sourcing files in R/ may cause unexpected behavior.

All files related to my project are stored in one directory, where my golem project was initially created. I also checked and set manually working directory to 'R' folder (where app_server and app_ui are stored). Unfortunately when I deploy my app the mentioned error comes up again. Moreover, every time I close my project in RStudio I save workspace image to '.RData' file (this file is also stored in main directory) - maybe here is a problem (but I also tried to deploy w/o this file and it failes either). I really don't know where the problem lies and what this error means.

Interestingly, regular (single) app.R can be deployed on shinyapps without a problem.

I'm using python to extract tables from some PDFs with tabula. Every table is then converted to a Pandas DataFrame, and I have to perform some analysis on them. I want to iterate every column to see if they contain a particular string, but I noticed an unexpected behavior in one particular df (at least I'm not able to understand what's going on).

This are the columns of the DataFrame, obtained with df.columns (df is the name of the name of the DataFrame):

...

I have assembled my assembly program using the following command:

nasm -f win64 -o test.obj test.asm

test.asm contains a few functions that call Win32 functions like GetStdHandle, HeapAlloc, etc

Normally, I would link one of my assembly projects like so:

ld -LC:/Windows/System32 -lkernel32 -e main -o test.exe test.obj

And it produces a test.exe file, as expected.

However, once I begin to use Win32 functions making use of the heap, like HeapAlloc, HeapFree, GetProcessHeap, I get the following error when linking:

C:\msys64\mingw64\bin\ld.exe: ertr000016.o:(.rdata+0x0): undefined reference to '_pei386_runtime_relocator'

I was then able to assume it has to do with MinGW's files being linked in. So I tried to compile it without them:

ld -nostdlib -nostartfiles -LC:/Windows/System32 -lkernel32 -e main -o test.exe test.obj

and get the following error:

C:\msys64\mingw64\bin\ld.exe: cannot find -lkernel32

So, my question is: how am I supposed to link to kernel32 using ld.exe (without including startfiles or stdlib), because no matter what I try I cannot get it to work.

Thank you for your help!

(I would like an answer that doesn't just tell me use GoLink, please, unless that is the only possible solution).

I am using Javascript Fetch API to invoke Dot net web API. Using Visual Studio code for HTML/Javascript & Visual Studio 2019 for Dot Net Web API. I am trying to implement login functionality using Dot net C# Web API, that will return JWT token in the response and use the token later to invoke separate Web API/Service (e.g. EmployeeInfo ).

1. Login page : It displays user id and password fields and the button "Login"
2. Once user clicks on login button, the function fnlogin is invoked

I have been trying to run the pcpr2 package using the following tutorial: https://github.com/JoeRothwell/pcpr2

The data for this package is available in this link: https://github.com/JoeRothwell/pcpr2/raw/master/data/PCPR2data.RData

My datamatrix file is: https://github.com/dtonmoy/PCPR2-data/blob/main/test_matrix.csv

My metadata file is: https://github.com/dtonmoy/PCPR2-data/blob/main/test_trait.csv

My code:

I created a shinyapp and there are three vital buttons.

The three buttons works well

And the click3 can output a plot and a table togather.

Now I met a problem that plot1, plot2 and plot3(plot3 and the heatmap output togather) can refresh each other ideally.But it works doesn't look like that.

The output table always keep stay there no matter click1 or click2 clicked.

I tried modifying my code but it didn't work.

I hope somebody could give me some advice that the table will diappear with the heatmpa no matter which button clicked.

My reproducible code and data here: