Issue I’m trying to generate an HTML report using RStudio, R Markdown and knitr. In the report I would like to display some bash code. I do not want to run the code but I would like it to be
Continue readingTag: r
Differences in R Markdown syntax highlighting for in-line code
Issue The following minimal R Markdown file minimal.Rmd produces different minimal.html output (via “Knit HTML” in RStudio) depending on my system. The first is the result on my Windows 8 machine. The second is the result on my Windows 7
Continue readingsyntax highlighting while rendering SQL using knitr
Issue knitr will execute SQL code using engine=’mysql’ but not highlight syntax: \documentclass{article} \begin{document} <<engine=’mysql’, engine.opts=”-h localhost”>>= SHOW DATABASES; @ \end{document} On the other hand using engine=’highlight’ will highlight the code but not execute it. \documentclass{article} \begin{document} <<engine=’highlight’, engine.opts=’-S sql
Continue readingIs rouge syntax highlighting meant to highlight non-base functions in R?
Issue I’m trying to understand the rouge syntax highlighter and in particular use it to highlight R code. Ultimately it’s for a website built with jekyll but I’ve been able to isolate my problems to just rouge (eg I use
Continue readingknitr syntax highlighting in .Rnw files (LaTeX)
Issue I am using .Rnw files to produce a report with LaTeX and knitr. My knitr_setup looks as follows: <<knitr_setup, echo=FALSE>>= library(knitr) opts_chunk$set(highlight = TRUE, cache = TRUE, eval = FALSE, size = “small”) options(width = 60) opts_knit$set(out.format = “latex”)
Continue readingSyntax highlighting rules and definitions
Issue Are there any standard syntax highlighting rules for R? If yes, where can they be found? Or does each editor, IDE, package (e.g., the highlight package) create their own rule set? Solution Each editor creates their own rule set.
Continue readingHighlight R Code Syntax in WordPress
Issue I would like to highlight R syntax in a wordpress blog, so that it looks similar as in RStudio. I found the wp-synthax-plugin, which is able to highlight R code as follows: However, the colors are in my opinion
Continue readingSweave syntax highlighting in output – revisit
Issue My question is the same as the one in the link Sweave syntax highlighting in output. I have followed the suggestion by daroczig https://tex.stackexchange.com/questions/5113/how-to-colorize-syntax-using-r-sweave, and created the following test.Rnw file: \documentclass{article} \RequirePackage{fancyvrb} \RequirePackage{listings} \SweaveOpts{keep.source=TRUE} <<SweaveListingsPreparations, results=tex, echo=FALSE, strip.white=false>>= require(SweaveListingUtils)
Continue readingHow to highlight all R function names with highlight.js?
Issue I want to extend highlight.js capabilities for R language so that (1) all function names that are followed by opening parenthesis ( and (2) all package names that are followed by :: and ::: operators would be highlighted (as
Continue readingCustom highlighting style in rmarkdown
Issue Is there a way to use a custom highlighting style in rmarkdown? Manual is a bit silent regarding that and the closest to that is to make a full blown custom css file for everything, that would however work
Continue readingHow to use variable R code in a Knitr chunk?
Issue I want to demonstrate use of a piece of R code. But I want the code to be variable itself. Example two tasks: Randomly select two variables from a data frame and add those columns. Randomly select a set
Continue readingHow to syntax highlight inline R code in R Markdown?
Issue This question is similar to consistent code html inline and in chunks with knitr. Instead of .Rhtml documents, I want to highlight inline R code in R Markdown documents, e.g., after `r “plot(cars, main = ‘A scatterplot.’)”` is compiled
Continue readingWhat does it mean when the variable name T is highlighted?
Issue I understand that R highlights specific text depending on its function, but what does it mean when the variable you are assigning is highlighted? And can it cause any problems? For example, T is highlighted automatically in: Solution It
Continue readingPrint Script with syntax highlighting R-Studio
Issue After finishing statistical analysis in R I always like to print out the script since it gives a good overview and one can adjust eventual errors. I like the syntax highlighting in R-Studio because it facilitates reading and fast
Continue readingStata syntax highlighting in Rmarkdown
Issue I am using Bookdown and Rmarkdown to compose a technical book for Stata users. I would like to include Stata highlighting syntax in the chunks of code, but I am not interested in actually executing Stata from Rstudio. I
Continue readingOverride bad/wrong values in a main table with NA or null values listed on another lookup table in R
Issue The main table is large. Has certain undesired values that I want to override. I am writing into a lookup table the keys and new_value (NA) to override. Both have 2 keys (session_id and datetime), not one unique. Other
Continue readingSplit string of concatenated digits into a numeric vector of individual values
Issue Suppose I have a long string of concatenated digits, 0 and 1: "1010101010101010100011011" I would like to split the individual values and separate them by a , like so "1,0,1,0,1,0,1,1,…". Then transform into a numeric vector like this: c(1,0,1,0,1,…)
Continue readingR Shiny unable to start png device after running a few hours
Issue I have had various R Shiny applications running successfully (some for over a year) on a Windows PC serving a local intranet network. In the last couple of weeks, the applications started to fail loading plots with the error:
Continue readingHow to get the difference of 2 images to visually compare complex-data visualizations by substracting ggplot's images
Issue I am working with two giant datasets taken under similar circumstances and produces very similar, but non-equal results. I need to visually highlight differences between both. I previously built a heatmap helper function that is able to draw each
Continue readingHow do I permanently change a vector in R?
Issue I am trying to simulate a tournament where, in each round, two randomly selected players out of thirteen play, and their Elo rating (a measure of their relative skill level) gets updated. Each player has a true underlying skill
Continue readingIs there a way to change the index on kmeans()$cluster?
Issue I am using kmeans() to create groups based on a score. The goal is to assign star ratings, so that the individuals with the highest scores get four stars, and the individuals with the lowest scores get 1 star.
Continue readingGlicko-2 implementation in R, where to find?
Issue I am looking for an R implemention of the excellent Glicko-2 algorithm of Mark Glickman. Thusfar I found this one. Although this is a very nice piece of code I am particularly looking for a code that is able
Continue readingIs there a way to *output* star rating in R Shiny?
Issue Dears, In my app, users rate some stuff. I want to output 5-star ratings based on their ratings just like the ones in IMDB. There are fractions in my numbers, and I want the stars to accommodate them. I
Continue readingError in for loop in ELO rating algorithm
Issue I’m trying to run the ELO rating code from here https://github.com/xsankar/hairy-octo-hipster/blob/master/ELO-538.R The dataset I’m using is here https://www.mediafire.com/file/0a5v393ki775vw9/sport2.xlsx/file The code I’m running is slightly modificated, I’m working with only 17 weeks instead of 22 as in the original code,
Continue readingModel fitting functions and environemnts
Issue Here is a kind of minimal example for a problem I stumbled upon: mylm <- function(formula,data,subset=NULL){ mysubset <- subset # some other clever manipulation lm(formula,data,mysubset) } mydata <- data.frame(x=rnorm(10),y=rnorm(10)) mylm(y~x,mydata) # this fails! The reason why the last line
Continue readingHow can a non-imported method in a not-attached package be found by calls to functions not having it in their namespace?
Issue An R namespace acts as the immediate environment for all functions in its associated package. In other words, when function bar() from package foo calls another function, the R evaluator first searches for the other function in <environment: namespace:foo>,
Continue readingAny way to access function installed by makeActiveBinding?
Issue The title basically says it all. If I do this … makeActiveBinding(“x”, function() runif(2), .GlobalEnv) x # [1] 0.7332872 0.4707796 x # [1] 0.5500310 0.5013099 … is there then any way for me to examine x to learn what
Continue readingError in eval(expr, envir, enclos) : object * not found when wrapping qplot()
Issue I don’t understand why my oh-so-minimal wrapper function produces the subject error. The below should reproduce it. My goal is to do a bunch of plots from data in a single dataframe, each of which lives in a new
Continue readingR: Scoping rules are getting me into murky waters
Issue Any help with this problem I’m having would be greatly appreciated. I am a moderately advanced R programmer, but so far all my solutions have failed me. I start with the logic behind what I am trying to do,
Continue readingScoping issue with using function to add rows to data frame?
Issue I wonder if this might be a scoping problem. I am new to R and am trying to use a function on a series of columns and outputing the results to a new data frame. The function should add
Continue readingEnvironments in R Shiny
Issue At http://shiny.rstudio.com/articles/scoping.html the rules for scoping in shiny are well explained. There are 3 environments or levels nested inside each other: objects available within a function, within a session and within all sessions. Using <- will change the object
Continue readingCan you enable an R function to see the values of its own formals on evaluation?
Issue In the R, language, suppose I have a function ff(jj, kk, mm). I would like the calling function (or calling human being in an interactive session) to be able to make mm depend in arbitrary ways on jj and
Continue readingupdate function in R and variables access
Issue I need to update a model formula inside a function. This is an example: A <- runif(n = 200) # generate some data B <- runif(n = 200) P <- 1/(1+exp(.5-A)) # generate event probability outcome <- runif(n =
Continue readingRcpp scoping of free variables
Issue Say that I have a C++ function dosomething(z) that has a single input variable z, but also a “free” variable located within it (say y). I want to be able to design the scoping so that when I run
Continue readingFunction flow: why does this function return 20
Issue Suppose I have a function called l: l <- function(x) x + 1 then define another function, m, but within m, redefine l: m <- function() { l <- function(x) x*2 l(10) } m() Why does m return x*2,
Continue readingR shiny object scoping
Issue I’m trying to access an object(a<-get(obj1,envir=parent.environment())) residing in the calling environment from the called environment myf and I can’t get it working. Error I’m getting is Object obj1 not found. I tried parent.frame()also. Any ideas? library(shiny) shinyApp( ui =
Continue readingScoping-related (?): anova() on list of created mixed-effects models
Issue In a project where I’m performing mixed-effects modelling using lme, I’m trying to compare models with different correlation structures and equal fixed parts. As I’ll be building a lot of these models (for different dependent variables), I tried to
Continue readingSetting attributes of an object that was created in a function
Issue (The title is probably quite bad, but I’m not sure how to describe it better) I have a (rich) object that is created via a function. This object has multiple attributes. One attribute is a function, that should (among
Continue readingAvoiding repeated creation of objects in RMarkdown document through if statement
Issue I’m working on a RMarkdown document that uses objects that take a long time to create and transform. The syntax is similar to this: — title: “Example” author: “Test” date: “October 29, 2015” output: pdf_document — Example “`{r} test_exc
Continue readingAccessing objects from global environment that are directly passed to the function in a wrapper for ggplot
Issue I’m generating a primitive wrapper for a ggplot2 to generate histograms. As I’ve to generate a number of graphics it is easier for me to have a function that will go through all of the variables and spit out
Continue readingAccessing multiple matched objects in a function without explicitly stating the names in the function call
Issue I would like to develop a simple function that would enable me to save graphs of specific characteristics. For example, I’m running some analysis producing a set of histograms: # Data and Libs data(mtcars); require(ggplot2) # Graphs ## A
Continue readingVerify object existence inside a function in R
Issue I want to determine whether an object exists inside a function in R: foo <- function() { y <- “hello” if (exists(y, envir = sys.frame())) print(y) } foo() Error in exists(y, envir = sys.frame()) : invalid first argument I
Continue readingIn R, exactly what causes an object of type name (or symbol) to be evaluated?
Issue After running: x <- as.name(“aa”) aa <- 2 in R, why doesn’t (x) return 2? And why doesn’t x <- as.name(“aa”) aa <- 3 get(get(x)) return 3? I know get() expects a string, but I don’t understand why it
Continue readingUnderstanding R's scoping demo
Issue I try to understand the scoping demo in R you can access through demo(scoping). I do not understand where the total variable is saved. First off I thought according to help(“<<-“) The operators <<- and ->> are normally only
Continue readingR Passing linear model to another function inside a function
Issue I am trying to find the optimal “lambda” parameter for the Box-Cox transformation. I am using the implementation from the MASS package, so I only need to create the model and extract the lambda. Here is the code for
Continue readingAccessing function's parent environment and removing objects
Issue Let’s say that I want to write a simple rename function that would load through .Rprofile. The function is simple and can be compared to: carsNewName <- mtcars; rm(mtcars) .Rprofile The function available in .Rprofile would be of format:
Continue readingDplyr non standard evaluation with function name passed as a string
Issue While working with dplyr pipeline, I would like to pass a function to mutate using NSE with the function name being passed from a vector. Example Given vector of two function names: funs <- c(“sum”, “mean”) I would like
Continue readingNested functions in parse(eval(…), envir = custom)
Issue I have a custom R environment e = new.env() e[[“a”]] = function(x) b(x) e[[“b”]] = function(x) x + 1 Function b() runs as expected. > eval(parse(text = “b(1)”), envir = e) [1] 2 But a(1) throws an error. >
Continue readingR: Source personal scripts keeping some functions hidden
Issue Follow up to this I want to source scripts inside a given environment, like in sys.source, but “exporting” only some functions and keeping the others private. I created this function: source2=function(script){ ps=paste0(script, “_”) assign(ps, new.env(parent=baseenv())) assign(script, new.env(parent=get(ps))) private=function(f){ fn=deparse(substitute(f))
Continue readingIssues in R with closures that sequentially returns .csv files
Issue I have a model that outputs data in the form of .csv files. The output directory is full of .csv files, each named n.csv where n is the run number. So on the 0th run it creates 0.csv, on
Continue readingSet a functions environment to that of the calling environment (parent.frame) from within function
Issue I am still struggling with R scoping and environments. I would like to be able to construct simple helper functions that get called from my ‘main’ functions that can directly reference all the variables within those main functions –
Continue readingscoping issues while plotting a raster with an overlayed polygon in rasterVis
Issue I’m working on a plotting function based on rasterVis::levelplot to which the user can pass either just a raster object, or a raster object and an sf polygon object. The function is rather complex, but a minimum subset showing
Continue readingCalling a special function from within namespace
Issue I’m interested in calling a special function from a namespace without the need to load the package. For instance, as described on R-bloggers, the package mefa4 developed by Peter Solymos offers a convenient function %notin%. The function is of
Continue readingcould not find function inside foreach loop
Issue I’m trying to use foreach to do multicore computing in R. A <-function(….) { foreach(i=1:10) %dopar% { B() } } then I call function A in the console. The problem is I’m calling a function Posdef inside B that
Continue readingHow to connect to a database outside a function, disconnect inside a function, and then reconnect inside that function with R & RMySQL
Issue I have an R script utilizing the RMySQL library that connects to an Amazon RDS. The script initially connects to the RDS prior to running the function. Inside the function, the MySQL on the RDS is queried, and then
Continue readingHow does scoping work in R?
Issue a <- 10 f <- function(){ a <<- 3 function() { a <<- 15 a <- 5 return(a) } } g <- f() g() a When I run the above code I get the following output: 5 15 Can
Continue readingUnderstanding functions with variable scoping
Issue For this code : A <- 100; B <- 20 f1 <- function(a) { B <- 100 f2 <- function(b) { A <<- 200 B <<- 1000 } f2(a) } f1(B) cat(A) cat(B) The following is the output :
Continue readingparallel::clusterExport how to pass nested functions from global environment?
Issue I’m making a function (myFUN) that calls parallel::parApply at one point, with a function yourFUN that is supplied as an argument. In many situations, yourFUN will contain custom functions from the global environment. So, while I can pass “yourFUN”
Continue readingBasic R shiny local scoping object
Issue I want a local variable in each session that can be updated by an input, which can be used by all other functions in the server. See the simple example below, I want the object to be updated when
Continue readingExtraction operator `$`() returns zero-length vectors within function
Issue I am encountering an issue when I use the extraction operator `$() inside of a function. The problem does not exist if I follow the same logic outside of the loop, so I assume there might be a scoping
Continue readingupdate() does not work for models created via lapply()
Issue I would like to use lapply() to compute several models in R, but it seems that the update() function can’t handle models generated through lapply(). A minimal example: d1 <- data.frame(y = log(1:9), x = 1:9, trt = rep(1:3,
Continue readingTrouble getting function to return TRUE
Issue I have some code to check to see if the input to a function is a valid US state. I have a CSV file with a State column and those are the only states I care about. So I
Continue readingUnable to scope variables into R functions for `standardize::standardize`
Issue I am trying to create a custom function that allows me to apply mixed effects standardization to a large dplyr data frame using the standardize package. I have been unsuccessful is parsing function arguments into the standardize function despite
Continue readingBERT R script, How does environment and scope work?
Issue I am having some issues understanding how BERT is handling R Environments. Ideally I would like to be able to run an R script via VBA, similar to a VBA Sub. I don’t think BERT facilitates this. When I
Continue readingCalling mlogit() from inside another function, scoping problem with variables when using attach
Issue I need to call the mlogit() R function from inside another function. This is a function for demonstrative purposes: #————————- # DEMO FUNCTION #————————- # f = formula (string) # fData = data.frame # cVar = choice variable (string)
Continue readingcurve3d can't find local function "fn"
Issue I’m trying to use the curve3d function in the emdbook-package to create a contour plot of a function defined locally inside another function as shown in the following minimal example: library(emdbook) testcurve3d <- function(a) { fn <- function(x,y) {
Continue readingstore variables from a function in the global environment
Issue coming back to this post years later to add yet another warning: DONT DO THIS I am trying to store a variable from a function in the global environment, but none of the solutions I found SO post or
Continue readingPass only specific variables to a shiny app when building a package
Issue I’m building a package which includes my shiny app. To do this, I build a wrapper around my “shiny::runApp” call, but unfortunatly the shiny app uses the global workspace variables. I want the wraper function to use the variables
Continue readingScoping problem when assigning functions in a loop
Issue I would like to create a bunch of functions with a particular structure in the variable name as a crude workaround for what should be one function with multiple arguments (this I cannot do directly). Let’s consider the following
Continue readingAny pitfalls to using programmatically constructed formulas?
Issue I’m wanting to run through a long vector of potential explanatory variables, regressing a response variable on each in turn. Rather than paste together the model formula, I’m thinking of using reformulate(), as demonstrated here. The function fun() below
Continue readingattach() inside function
Issue I’d like to give a params argument to a function and then attach it so that I can use a instead of params$a everytime I refer to the list element a. run.simulation<-function(model,params){ attach(params) # # Use elements of params
Continue readingHow to use tryCatch without global variables or superassignment
Issue I am writing an R package with a tryCatch() loop of the following form, in which I first try to fit a model using an error-prone method but then use a safer method if the first fails: # this
Continue readingStrictly speaking does the scoping assignment <<- assign to the parent environment or global environment?
Issue Often the parent environment is the global environment. But occasionally it isn’t. For example in functions within functions, or in an error function in tryCatch(). Strictly speaking, does <<- assign to the global environment, or simply to the parent
Continue readingRedundant variable naming issue with purrr::map and dplyr
Issue I would guess that this is a basic issue that isn’t specific to purrr at all, but it caught me off guard in this context. The general answer would be great if this isn’t about how purrr and dplyr
Continue readingWhy does my R run in dynamic scoping? Shouldn't it be lexical?
Issue I just learned in class that R uses lexical scoping, and tested it out in R Studio on my computer and I got results that fit dynamic scoping, not lexical? Isn’t that not supposed to happen in R? I
Continue readingSaving R objects to global environment from inside a nested function called by a parent function using mcmapply
Issue I am trying to write an R-script that uses nested functions to save multiple data.frames (parallelly) to global environment. The below sample code works fine in Windows. But when I moved the same code to a Linux server, the
Continue readingScoping and evaluating functions in R
Issue Given the following function f <- function(x) { g <- function(y) { y + z } z <- 4 x + g(x) } If one runs the following code in R why is the answer 10? I’m a little
Continue readingHow to have helper function inherit variables from main function
Issue I would like to set up a function bar() which relies on a helper function foo(). I am struggling to figure out the cleanest way to setup the variable definitions so I don’t have to repeat the definitions in
Continue readingEmulate dynamic scoping in R to filter by arbitrary functions
Issue I have a number of files in a directory, and I want to distribute them between two newly created subdirectories based on whether their content satisfies a certain condition. Moreover, I need to perform this operation on multiple directories,
Continue readingEnvironment/scoping in furrr: nesting get() in future_map()
Issue I’m interested in learning more about how furrr finds stuff from the global environment, and asked generally about the black magic it performs. Here’s a specific example of a behavior I didn’t understand and could use some help with:
Continue readingWrapping working code in a function and it stops working
Issue I have some code that works quite well, and I have it repeated in the same format in my code several times, so I’ve tried to wrap it in a generalised function and as soon as I do that,
Continue readingPassing arguments to a function via list and ignoring unused arguments
Issue Background I’m interested in using do.call to pass arguments to two functions with use of one list. The do.call solution should ignore unused arguments. Example my_sum <- function(a, b) { a + b } my_exp <- function(c, d) {
Continue readingIs it a good practice to call functions in a package via ::
Issue I’m writing some R functions that employ some useful functions in other packages like stringr and base64enc. Is it good not to call library(…) or require(…) to load these packages first but to use :: to directly refer to
Continue readingMaking an object available in Shiny outside renderPlot for renderTable
Issue I’m drafting a simple Shiny App that provides access to a dynamic chart and a corresponding table. The relevant part of the server.R code looks like that: output$some_plot<- renderPlot({ # Subset data on change in the indicator selection chrt_demo_dta
Continue readingCorrect approach to caching a computationally expensive object generated within function
Issue Background In the following scenario, I’m looking at the following workflow: Top-level runner function, in the example below running_function, calls a number of smaller functions. Some of those functions are computationally expansive, and will be called on the same
Continue readingsolving scoping issure in a custom function to extract data from `htest` object
Issue I am struggling with some scoping issues where I am trying to extract dataframe. Here is a portion of a larger custom function to extract data from McNemar’s test and other htest objects: get_data <- function(x, …) { data_name
Continue readingForce R function call to be self-sufficient
Issue I’m looking for a way to call a function that is not influenced by other objects in .GlobalEnv. Take a look at the two functions below: y = 3 f1 = function(x) x+y f2 = function(x) { library(dplyr) x
Continue readingR: Scoping error when calling function from script
Issue I am building a large codebase in R that uses vectorization through many nested user-defined functions. These auxiliary functions are, by in large, written in their own R script for debugging and maintenance purposes. I would like to source
Continue readingcontrol scoping of arguments supplied to lm() from whithin a function called by lapply
Issue I have a function that takes a dataset, extracts different variables, and then makes linear models from those variables (it expects the response in the last column). I want the data argument of the calls for these models to
Continue readingDetermining which version of a function is active when many packages are loaded
Issue If I have multiple packages loaded that define functions of the same name, is there an easy way to determine which version of the function is currently the active one? Like, lets say I have base R, the tidyverse,
Continue readingHow to correctly scope a dataframe in R to use with a formula in a function
Issue After some digging (1, 2, 3), there appears to be a few posts about using formulas within functions causing scoping issues if I am understanding them correctly. Some suggests to use an environment, assign, or <<- to get around
Continue readingR Shiny: Change tabs from within a module
Issue I have a shiny app with multiple tabs, and I would like to have action buttons within the tabs that allow the user to switch tabs. I found the following pages: https://www.titanwolf.org/Network/q/e6b187b8-6cad-4ece-ad16-7ec73ed2f758/y How to switch between shiny tab panels
Continue readingHow to use the R environment and the globalenv() function
Issue I’m currently reading Hands-On Programming With R and the author first suggests this code to deal cards from the top of a deck: deal <- function(deck) { deck[1,]} but that code has an obvious problem: you’ll always get the
Continue readingR scoping question: Object exists but I can't do anything with it
Issue I’d like to feed a value from one function into another that I’m calling on inside the first, and I can’t seem to get the scoping right. Crucially, the two functions are defined separately. Here’s an example: little_fun <-
Continue readingData objects not found in embedded vegan:cca. Scoping issue?
Issue I try to embed cca (and also capscale) from package vegan (version 2.5-7, R 4.1.2) in another function to test an analysis pipeline with some data transformation and then varying model formulas. The used data matrices (e.g. bio and
Continue readingHow do you use "<<-" (scoping assignment) in R?
Issue I just finished reading about scoping in the R intro, and am very curious about the <<- assignment. The manual showed one (very interesting) example for <<-, which I feel I understood. What I am still missing is the
Continue readingSplit data into training and test set: How to make sure all factors are included in training set?
Issue I have a data frame called b. I split this into a training set and test set. smp_size <- floor(0.75 * nrow(b)) set.seed(123) train_ind <- sample(seq_len(nrow(b)), size = smp_size) b_train <- b[train_ind, ] b_test <- b[-train_ind, ] b contains
Continue readingR: Use model$xlevels to subset data to get to training data
Issue Consider mtcars example: model <- fit3 <- lm(mpg ~ factor(am)+wt+qsec+hp+drat, data = mtcars) When you do model$xlevels we get the levels of the variable that was used for modeling. If I want to use these level details to subset
Continue readingTraining the datasets in R studio
Issue I am dividing the datasets into 70% of the training and 30% as validating set. There are lots of NaN variables too and maybe because of that, I could not train my data. Although, I was able to differentiate
Continue readingIn the train method what's the relationship between tuneGrid and trControl?
Issue The preferred method in R to train known ML models is to use the caret package and its generic train method. My question is what’s the relationship between the tuneGrid and trControl parameters? as they are undoubtedly related and
Continue reading