# How do you make a superscript in R?

## How do you make a superscript in R?

**Superscript** is “started” by the caret ^ character. Anything after ^ is **superscript**. The **superscript** continues until you use a * or ~ character. If you want more text as **superscript**, then enclose it in quotes.

## How do I change the title of a plot in R?

**Add titles to a plot in R software**

**Change**main**title**and axis labels.**title**colors.- The font style for the text of the
**titles**. **Change**the font size.- Use the
**title**() function. - Customize the
**titles**using par() function.

## How do I change the legend position in R?

Control **legend position** with **legend**. You can place the **legend** literally anywhere. To put it around the chart, use the **legend**. **position** option and specify top , right , bottom , or left . To put it inside the plot area, specify a vector of length 2, both values going between 0 and 1 and giving the x and y coordinates.

## How do I change the title of a legend in R?

**Key ggplot2 R functions**

- p + labs().
**Change legend title**. ... - p + theme(…).
**Change legend**theme: background color,**legend**box border, font size and color. - p + scale_x_discrete(limits = c(“2”, “0.
## How do you center a title on a graph in R?

The default ggplot

**title**alignment is not**centered**. It is on the left. It's possible to put the**title**in the middle of the chart by specifying the argument hjust = 0.## What is a legend in R?

To add

**legends**to plots in**R**, the**R legend**() function can be used. A simplified format of the function is :**legend**(x, y=NULL,**legend**, fill, col, bg) x and y : the x and y co-ordinates to be used to position the**legend**.**legend**: the text of the**legend**. fill : colors to use for filling the boxes beside the**legend**text.## IS function in R to get number of observation in a data frame?

The

**function**str() shows you the structure of your**data**set. For a**data frame**it tells you: The total**number of observations**(e.g. 32 car types) The total**number**of variables (e.g. 11 car features) A full list of the variables names (e.g. mpg , cyl ... )## How do I put a legend outside the plot in R?

**The simplest way to****plot**a**legend outside**a figure in**R**is to:- First step, make the outer margin at the bottom of the
**plot**large: - Second step, make the multi-panel figure (not shown)
- Third step: overlay the entire figure region with a new, single
**plot**. - Result:

## What does Cex in R mean?

description.

**cex**. number indicating the amount by which plotting text and symbols should be scaled relative to the default. 1=default, 1.## What is Abline R?

The

**R**function**abline**() can be used to add vertical, horizontal or regression lines to a graph. A simplified format of the**abline**() function is :**abline**(a=NULL, b=NULL, h=NULL, v=NULL, ...) a, b : single values specifying the intercept and the slope of the line. h : the y-value(s) for horizontal line(s)## How do you plot a line in R?

The basic

**plot**command The**plot**command accepts many arguments to change the look of the**graph**. Here, we use type="l" to**plot a line**rather than symbols, change the color to green, make the**line**width be 5, specify different labels for the x and y axis, and add a title (with the main argument).## How do you plot a regression line in R?

A scatter

**plot**can be created using the function**plot**(x, y). The function lm() will be used to fit linear models between y and x. A**regression line**will be added on the**plot**using the function**abline**(), which takes the output of lm() as an argument. You can also add a smoothing**line**using the function loess().## How do you plot points in R?

To add new

**points**to an existing**plot**, use the**points**() function. The**points**function has many similar arguments to the**plot**() function, like x (for the x-**coordinates**), y (for the y-**coordinates**), and parameters like col (border color), cex (**point**size), and pch (symbol type).## How do you plot multiple lines on a graph in R?

**Multiple**curves on the same**plot**Create the first**plot**using the**plot**() function. For the subsequent**plots**, do not use the**plot**() function, which will overwrite the existing**plot**. Instead, each one of the subsequent curves are plotted using points() and**lines**() functions, whose calls are similar to the**plot**() .## How do I plot two plots in R?

**Combining****Plots****R**makes it easy to**combine**multiple**plots**into one overall**graph**, using either the. ...- With the par( ) function, you can include the option mfrow=c(nrows, ncols) to
**create**a matrix of nrows x ncols**plots**that are filled in by row. ... - The layout( ) function has the form layout(mat) where.

## What library is melt in R?

reshape package

## How do I install a package in R?

Download and

**install a package**(you only need to do this once). To use the**package**, invoke the library(**package**) command to load it into the current session....**Adding Packages**- Choose
**Install**Packages from the Packages menu. - Select a CRAN Mirror. ...
- Select a
**package**. ... - Then use the library(
**package**) function to load it for use.

## What is melting data in R?

**Melting**in**R**programming is done to organize the**data**. It is performed using**melt**() function which takes**dataset**and column values that has to be kept constant. Using**melt**(), dataframe is converted into long format and stretches the**data**frame. Syntax:**melt**(**data**, na.rm = FALSE, value.name = “value”)## How do I reverse a Dataframe in R?

The

**transpose**(reversing rows and columns) is perhaps the simplest method of reshaping a dataset. Use the t() function to**transpose**a matrix or a**data frame**. In the latter case, row names become variable (column) names.## What does T () do in R?

**t()**function transposes a matrix or data.## How do you gather a function in R?

To

**use gather**() , pass it the name of a data frame to reshape. Then pass**gather**() a character string to**use**for the name of the “key” column that it will make, as well as a character string to**use**as the name of the value column that it will make.## How do I reverse a dataset in R?

Rotating or transposing

**R**objects That is, you transpose the rows and columns. You simply use the t() command. The result of the t() command is always a matrix object. - First step, make the outer margin at the bottom of the

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