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This error occurs when you have a closing curly bracket in your code without a corresponding opening curly bracket. You can solve this error by finding the position in your code that requires an opening bracket. This tutorial will go through how to solve the error...

You can remove a legend from a plot using the syntax legend.position="none" for the plot theme. For example, library(ggplot2) ggplot(data = mtcars, aes(x = mpg, y = disp, color = vs)) + geom_point() + theme(legend.position="none") This tutorial will go through how to...

This error occurs if you try to write to a file in a directory that was not found by the R interpreter. You can solve this error by creating the directory using dir.create() or removing the missing directory from the file save path. For example, x <- c(rnorm(10))...

The easiest way to center a title using ggplot2 is to modify the plot.title component of the theme using element_text(hjust=0.5). For example, library(ggplot2) ggplot(data=mtcars, aes(x=mpg, y=wt)) + geom_point() + ggtitle("Automobile Weight vs Miles per Gallon") +...

The easiest way to transpose a data frame is to use the transpose() function from the data.table library. For example, library(data.table) # get data data("mtcars") # transpose t_mtcars <- transpose(mtcars) # get row and colnames in order colnames(t_mtcars) <-...

Using the rowwise function from dplyr in combination with the mutation function, you can apply a function to every row in a table. For example, data %>% rowwise() %>% # a, b, c are column names mutate(sum_val = sum(a, b, c)) This tutorial will go through how to use...

The easiest way to add a sequence of numbers as an index column is to use the nrow() function, for example, df$index <- 1:nrow(df) This tutorial will explain how to add a numeric ID column to a data frame with code examples. Table of contentsAdd Index Column to...