I used the following function to find standard error of variables. but when I run the same function now, it is not working. st.err <- function(x) { sd(
I am populating a table by using Insert UI elements. I also want to delete both table entries and the inserted panels by using the remove UI elements. I could
When using several R/exams exercises with TikZ plots, I have no problems generating exams in HTML format or for Canvas. However, exactly the same exercises when
I'm trying to use the entire page width when rendering an R markdown document using rmdformats::readthedown. First, you can see that it isn't a problem using on
Within a Shiny application, I would like to provide users the option to select a regression method and then show the fit on their data on an existing ggplot2 gr
I'm looking for an efficient way to create a boolean vector which returns TRUE if one or more of a number of specified variables e.g. c(1,2,3) are in another ve
I want to produce this string: All my variables: a, b, c from this variable vars <- c("a", "b", "c") using glue(). My best attempt so far is: library(glu
I am trying to find out if certain patterns appear within a data frame. Suppose I have the following "dictionary of patterns" (notice "james" vs "jamesj"): patt
I need to make recodings to data sets of the following form. # List elements of varying length set.seed(12345) n = 1e3 m = sample(2:5, n, T) V = list() for(i
I have a "date" vector, that contains dates in mm/dd/yyyy format: head(Entered_Date,5) [1] 1/5/1998 1/5/1998 1/5/1998 1/5/1998 1/5/1998 I am trying to plot
I've been looking for a way to conduct group-based trajectory modeling in R with no avail. Something along the lines of what PROC TRAJ (http://www.andrew.cmu.e
I'm trying to create a leaflet map of census data. I have a csv file contains the number of deaths across Ireland. The data consists of the year($Year), the Sex
I not sure if this is a bug or not. If I encode one of the characters to UTF-8 before converting to raw and back again, then the characters are not the same. I
I'm recently working with data as year <- c('1990', '1990', '1994', '2000', '2012') n1 <- c(30, 70, 20, 31, 10) n2 <- c(40, 60, 20, 21, 8) r1 <- c(0
I have written a code in R which is supposed to retrieve certain information from a website and import it into an Excel file. I have used it for one website and
hello im trying to extract some id with a group and Date in range > d1 id group Date 1: 1 A 2017-07-02 2: 2 A 2017-07-04 3: 3 A
I have seen similar posts on this topic (see, for example, here and here) but not one that is specific to the sf-tidyverse ecosystem. I have a series of lakes,
I'm trying to merge to data frames like this: data1 <- data.frame(hola = as.numeric(), toma = as.character()) data2 <- data.frame(hola = as.numeric(1), t
I have a Shiny application that generates one image after clicking an action button, and saves the screenshot of that image after pressing on another action but
I am trying to reproduce the following functions created in Python in R. # Python def square_area(side): return side * side results = [] for i in range(1