Visualizations in R
R
R: How to Draw Circles in Plots (With Examples)
You can use the following methods to draw a circle in a plot in R:
Method 1: Draw Circle Using Base R
library(plotrix)
#create scatter plot
plot(x, y)
#add...
R
How to Plot Multiple Plots on Same Graph in R (3 Examples)
You can use the following methods to plot multiple plots on the same graph in R:
Method 1: Plot Multiple Lines on Same Graph
#plot first...
R
How to Change Legend Position in Base R Plots
There are two ways to change the legend position in base R plots:
Method 1: Use (x, y) coordinates
legend(4, 12, legend=c('y1', 'y2'), col=c('purple', 'red'), lty=1)
Method...
R
How to Create a Histogram with Different Colors in R
Often you may want to create a histogram that has several different colors in R.
The following examples show how to do so in base...
R
How to Overlay Normal Curve on Histogram in R (2 Examples)
Often you may want to overlay a normal curve on a histogram in R.
The following examples show how to do so in base R...
R
How to Extract Regression Coefficients from lm() Function in R
You can use the following methods to extract regression coefficients from the lm() function in R:
Method 1: Extract Regression Coefficients Only
model$coefficients
Method 2: Extract Regression...
R
How to Predict Values in R Using Multiple Regression Model
You can use the following basic syntax to predict values in R using a fitted multiple linear regression model:
#define new observation
new frame(x1=c(5), x2=c(10), x3=c(12.5))
#use...
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