To find out which package version is loaded in R, you can use the sessionInfo() or the packageVersion() function. To check the version of all currently loaded packages, you can use the sessionInfo() function, which provides information about your current R session, including package versions. # Get information about the current R session session_info <- sessionInfo() … Read more
Rotating and spacing axis labels in ggplot2 can be easily accomplished using the theme() and element_text() functions. The theme() function customizes the non-data components of a plot, such as titles, labels, fonts, backgrounds, gridlines, and legends. Follow the below steps to rotate and space axis labels in ggplot2. Step 1: Install and load the ggplot2 package … Read more
The walk() function is part of the purrr package in R that applies a function to each element of a list or vector, but unlike map(), it does not return anything. The walk() function takes two arguments: a list and a function. The function is applied to each element of the list in turn, and … Read more
The str_like() is a function from package stringr in R that tests whether a character string matches a pattern specified as a string. It returns a logical vector of the same length as the input vector, with TRUE suggesting a match and FALSE suggesting no match. Syntax str_like(string, pattern, ignore_case = TRUE) Parameters string: Input … Read more
The stat_summary() is a ggplot2 library function in R that allows for tremendous flexibility in the specification of summary functions. The summary function can operate on a data frame (with argument name fun.data) or a vector (fun.y, fun.ymax, fun.ymin). The stat_summary() function calculates various summary statistics for data points, such as the mean, median, maximum, minimum, … Read more
The scale_colour_brewer() is an R function from the ggplot2 package that provides sequential, diverging, and qualitative color schemes from ColorBrewer. These are particularly well suited to display discrete values on a map. Syntax scale_colour_brewer( …, type = “seq”, palette = 1, direction = 1, aesthetics = “colour” ) Parameters type: It is one of “seq” … Read more
There are the following methods to drop data frame columns by name in R. Method 1: Using the df_new <- subset(df, select = -c(col2, col4)) Method 2: Using the df_new <- df %>% select(-c(col2, col4)) Method 3: Using the !(names(DF) %in% drops)] Method 4: Using the setDT(df)[, c(“col2”, “col4”) := NULL] Method 5: Using the … Read more
The scale_fill_brewer() function in R uses a range of colors from a set of palettes in the RColorBrewer package. It changes the fill color of ggplot2 plots, such as boxplots, bar plots, violin plots, dot plots, etc. The scale_fill_brewer() function takes several arguments, including palette, which specifies the name of the color palette to use, … Read more
The scale_colour_distiller() is a function from the ggplot2 package that applies a color scale to the color aesthetic of a plot. For example, you can use the scale_colour_distiller() function to create a color gradient for a scatter plot based on a third variable. The scale_colour_distiller() function uses a color scale generated using a distiller color … Read more
The scale_fill_distiller() is a function from the ggplot2 package in the R that applies a color scale to the fill aesthetic of a plot. For example, scale_fill_distiller(palette = “Spectral”, n = 7) will create a color scale with 7 colors from the Spectral palette. Syntax scale_fill_distiller( …, type = “seq”, palette = 1, direction = … Read more