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How to highlight a point along a curve in ggplot
I have the below code to plot a probit model comparing the chance of success based on a maximum temperature value. Seems to work well, I'm happy with the plot. But I'm hoping to highlight the point...
View ArticleHow to use the 'stl' function for seasonal decomposition on training data?
For a school project I have to do some coding in R and comment on the results found. Currently, I am a bit stuck here. Let me show my code first:# Create time series object tsTradeBalance <-...
View ArticleMerging data frames with partial Matching using R
Lets say I have data frame df1 with the following variablesContinent Country 1 Europe Russia 2 Asia Myanmar (Burma) 3 africa Benin 4 africa Botswana 5 africa Burkina and df2 with the following...
View ArticleCreate Extra Large Table in R
I need to generate big table which contents more than billion rows. Existing I use expand.grid(rep(list(n),k)) but the error message raised saying that need to allocate memory. I don't it's a proper...
View ArticleI have no idea how this comes as an R function! How would you go about this?...
Create a function in R named counts. This function should take as parameters a numeric vector x and also a number indicating a number of bins n. The function will consider the range [min(x), max(x)],...
View ArticleHow do I go about resolving "package ‘ddply’ is not available (for R version...
I'm trying to install the package "ddply" but keep getting this responseinstall.packages("ddply") Warning in install.packages : package ‘ddply’ is not available (for R version 3.6.2)Any ideas on how to...
View ArticleCalculating lm() within a loop
Objective: The overall objective of the problem is to calculate the confidence interval (CI) of various sample sizes (n=2,4..1024) of rnorm, 10,000 times and then count the number of times each one...
View ArticleHow to manipulate elements in Rcpp::String
Is there possible to manipulate individual characters with Rcpp::string object? I need to do some string substitutions while keeping encodings, so I think Rcpp::string might help.What I want to achieve...
View ArticleConditionally Remove duplicates and collapse a dataframe
I've a dataframe as under:+------+-----+ | from | to | +------+-----+ | 1 | 3 | | 1 | 5 | | 2 | 1 | | 2 | 3 | | 2 | 6 | | 3 | 6 | | 4 | 5 | | 4 | 8 | | 5 | 9 | | 6 | 10 | | 6 | 2 | | 6 | 4 | | 7 | 5 |...
View ArticleRun a reproducable solution
I try to run these command which are from this:library(bibliometrix) # Loading txt or bib files into R environment D <- readFiles("http://bibliometrix.org/datasets/joi.txt") # Converting the loaded...
View ArticleLooping over a set of dataframes in R
I an new to R and have a quick doubt (have gone through a lot of questions on stack-overflow but to no avail). I have created a function (as can be seen in my code) where x and y are dates and $z_{1}...
View Articleconcatenate a string into a numeric vector
Suppose I have a long string of numbers "1010101010101010100011011". I would like to separate them by a "," like so "1,0,1,0,1,0,1,1,..." and then transform into a numeric vector like this...
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Upload error in basic shiny app in shinyapps.io portal
A very simple shiny app with upload feature is working locally but not on shinyapps.ioCode : ui <- shiny::fluidPage( fileInput("file", "Upload file") ) server <- function(input, output){ }...
View ArticleInstalling package from source R
I have an R package that I would like to install from here, and as instructed by the authors, the way we should install it is as follows:install.packages("uba_0.7.7.tar.gz",repos=NULL,dependencies=T)...
View Articleconvert character column into datetime column in r , "04/19/19 08:46 " this...
i have this "04/19/19 08:46"value in Order.Date column. Order.date column is in character type but i want that column to be in datetime type.how can i do that. the name of the dataframe is...
View Articlemutate_at is not applied to all columns selected
I am trying to subtract one column from all others but not all columns are modified. test <- tibble(a = 1:3, b = 2:4, c = 3:5, d = 4:6, e = 5:7) col = 'd' test %>% mutate_at(vars(-a), funs(. -...
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displaying `shape` values in `ggplot2` plot annotations
I want to display the shape value (shape argument for geom_point function) in the plot annotation.Below, for example, I am just writing 'point shape' where I actually want the shape itself to be...
View Articlemaking sense of a for loop with an if statement in R
This is a practice question to prep for an exam. We are given this code:x=c(T,T,F,T,F) for (i in 1:5){ if(i > 1 & i < 5){ x[i ] = x[i-1] & x[i+1] & x[i] print(x) } } and asked to...
View ArticleZoom shiny leaflet world map to full width
Does anyone know how to set default render zoom of a Shiny Leaflet map so a full world map zooms to fit the window width (i.e. -180° to 180° properly fits the window)? I can only set zoom to integers,...
View Articlemap over and change column names from a data frame
I have a data frame and a list. The list consists of 12 lists and the data frame consists of 12 rows and 2 columns. How can I map over the lists and change each of the list column names according to...
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