Customize ToolStripMenuItem

I want to customize ToolStripMenuItem by overriding OnPaint function. This is a MyToolStripMenuItem: public class MyToolStripMenuItem : ToolStripMenuItem { public MyToolStripMenuItem() ...

How to source() .R file saved using UTF-8 encoding?

The following, when copied and pasted directly into R works fine: > character_test <- function() print("R同时也被称为GNU...

How to define fixed aspect-ratio for (base R) scatter-plot

I am plotting correlation coefficients (values = 0.0:1.0) for two isotopes measured in each individual from two populations. I would like to have a fixed aspect-ratio for my scatter-plot so that...

Cartesian Product using data.table package

Using the data.table package in R, I am trying to create a cartesian product of two data.tables using the merge method as one would do in base R. In base the following works: #assume this order...

lme4/Matrix: Entry Point Not Found - how to fix?

I have been using lme4 every day for quite a while. Today, after opening R (x64 v 2.15.1), it complained that there is no package called ‘lme4’. So I re-installed it. When I ran require(lme4)...

Understanding data.table invalid .selfref warning

I am trying to figuring out the data.table 'invalid .selfref' error that I am getting with the code below. library(data.table) library(dplyr) DT <- data.table(aa=1:100, bb=rnorm(n=100),...

The correct use of devtools and/or RStudio with respect to .Rbuildignore

I'd like to exclude the following ressources when building an R package via .Rbuildignore: ^.*\.Rproj$ ^\.Rproj\.user$ inst/examples inst/prof man-roxygen tests But I'm confused as sometimes it...

How to loop through a list in R

I have a list lets say: dataSet$mixed_bag <- list("Hello", c("USA", "Red", "100"), c("India", "Blue", "76")) I want to iterate through this list and create new variables based on the contents of...

replace string in R giving a vector of patterns and vector of replacements

Given a string with different placeholders I want to replace, does R have a function that replace all of them given a vector of patterns and a vector of replacements? I have managed to accomplish...

Error while executing groovy script

Code is a follows: class Book { private String title Book (String theTitle) { title=theTitle } String getTitle() { return title } } Book...

R - Call a function from function name that is stored in a variable?

I'm writing some R code and I want to store a list of Function names and what they are for in a dataframe, and then query that dataframe to determine which function to call, but I can't figure out...

Points of intersection of vector with cone

I have a Vector A defined as : (Ao+t∗Ad) I also have a Cone with vertex (cone tip) V, axis direction D, base radius R and height H. How can I find the points of intersection between the vector...

Error with embed_notebook, getting plotly to work on Jupyter

I am trying to have embedded R plotly charts in Jupyter I am following https://plot.ly/r/using-r-in-jupyter-notebooks/ But stuck at "Make sure that both pandoc.exe and pandoc-citeproc are...

Installation of package ‘forecast’ had non-zero exit status

With R version 3.2.3 (2015-12-10) on centOS I am trying to install.packages('forecast') I get this: install.packages('forecast') Installing package into ‘/usr/lib64/R/library’ (as ‘lib’...

TemplateDoesNotExist at / base/index.html when deploying to heroku

I've been working on this issue for days and I would really love some real help here! :) I'm brand new to Python, Django, and stackoverflow, so please let me know if more information or a...

Filter columns in a data frame by a list

I want to produce a new data frame from my existing one, where the columns in this new df are selected based on whether that variable is listed in a separate vector (i.e., as rows). The new df...

R Conditional Regression with Multiple Conditions

I am trying to run a regression in R based on two conditions. My data has binary variables for both year and another classification. I can get the regression to run properly while only using 1...

Laravel 5.5 Error Base table or view already exists: 1050 Table 'users' already exists

Specifications: Laravel Version: 5.5.3 PHP Version: 7.1 Database Driver & Version: MariaDB 10.1.26 Description: C:/Users/user/code/blog/>php artisan...

RStudio crashing with RcppGSL function

I am working on speeding up one of my R programs, that solves a vector of score equations, with Rcpp. Since intermediate steps in computing these score equations require interpolation and...

Has been blocked by CORS policy: Response to preflight request doesn’t pass access control check

I have created trip server. It works fine and we are able to make POST request by Insomnia but when we make POST request by axios on our front-end, it sends an error: has been blocked by CORS...

docker-compose/django TypeError: expected str, bytes or os.PathLike object, not NoneType

I'm trying to set up my Django and postgres dev environment with docker so I can run it on other machines more easily as well as run everything from 1 terminal window (I'll be adding my react...

How can I resolve the "No Font Name" issue when importing fonts into R using extrafont?

I have a folder on my Windows desktop (C:\Users\me\Desktop\Fonts) which contains fonts that I would like to import into R using extrafont. When I try to import the fonts...

Same-origin request causes “Access-Control-Allow-Origin doesn’t match” error, though origin of course matches. Note: has CSP policy w/ "sandbox"

When the exact same URL is being used in both by CORS and its web pages' URL, I still get the same error messages in my Firefox development console. Browser console messages were: Cross-Origin...

TypeError: Could not build a TypeSpec with type KerasTensor

I am a newbie to deep learning so while I am trying to build a Masked R-CNN model for training my Custom Dataset I am getting an error which reads: TypeError: Could not build a TypeSpec for...

How do I conditionally combine some rows (but not others) in R data frames?

I'm trying to figure out how to merge/join two data frames in such a way that if a certain condition is met, R combines two rows from the two data frames into one row, but if the condition is not...

Cannot add a DPDK-bound interface to the OVS bridge

I am unsucessfully trying to add a PCI interface (I219-V) to the OVS bridge using ovs-vsctl: [email protected]:/home/me# ovs-vsctl add-port br0 tryport -- set Interface tryport type=dpdk...

Cannot install psycopg2 with pip3 on M1 Mac

I cannot install psycopg2 on my M1 Mac and I used pip3. When I tried to install with pip3 install psycopg2 The output like that: ERROR: Command errored out with exit status 1: command:...

Compute R^2 Score for Lasso Regression Against Specific Model in scikit-learn

I have regularized Lasso models based on PolynomialRegression features of four degrees (1, 3, 7, 11) on pre-trained data in sci-kit learn. I generated predictions for 100 evenly spaced points on...

Installing compiler on Mac M1 Monterey for Rcpp and other tools

I'm trying to use packages that require Rcpp in R on my M1 Mac, which I was never able to get up and running after purchasing this computer. I updated it to Monterey in the hope that this would...

Tensorflow setup in R | Error: Failed to load the native TensorFlow runtime

For the last 5 days, I am trying to make Keras/Tensorflow packages work in R. I am using RStudio for installation and have used conda, miniconda, virtualenv but it crashes each time in the end....