To find the critical value of F for one-way ANOVA in R, we can follow the below steps −First of all, create a data frame with one categorical and one numerical column.Then, use aov function to find the anova table.After that, use qf function to find the critical value of F for one-way ANOVA.Create the data frameLet's create a data frame as shown below − Live DemoGrp

To expand a data frame rows by its index position in R, we can follow the below steps −First of all, create a data frame.Then, use rep and seq_len function with nrow to expand the data frame rows by their index position.Create the data frameLet's create a data frame as shown below − Live Demox1

To divide matrix row values by row standard deviation in R, we can follow the below steps −First of all, create a matrix.Then, use apply function to divide the matrix row values by row standard deviation.Create the matrixLet's create a matrix as shown below − Live DemoM

To print a factor vector without levels in R, we can follow the below steps −First of all, create a factor vector.Then, use as.character function to read the vector.Example 1Create a factor vectorLet’s create a vector called f1 as shown below − Live Demof1

To save a vector in R as CSV file, we can follow the below steps −First of all, create a vector.Then, use write.csv function to save the vector in CSV file.Example 1Let’s create a vector as shown below − Live Demox

To create density plot with manually setting the colors of categories, we can follow the below steps −Frist of all, create a data frame.Load ggplot2 package and creating the density plot for the categories.Create the density plot for the categories in the data frame by using scale_fill_manual function.Create the data frameLet's create a data frame as shown below − Live Democategories

To create a horizontal line in ggplot2 graph with different in R, we can follow the below steps −First of all, create a data frame.Then, create a plot using ggplot2 using geom_hline function having horizontal line.After that, create the same plot with line color defined with col argument.Create the data frameLet's create a data frame as shown below − Live Demox

To create stacked bar chart using ggvis, we can follow the below steps −First of all, create a data frame.Create the horizontal stacked bar chart with layer_rects function of ggvis package.Create the data frameLet's create a data frame as shown below − Live DemoGroup

To make all text size same in a plot created by using ggplot2 in R, we can follow the below steps −First of all, create a data frame.Then, create a chart using ggplot2.After that, create the same chart with theme function and change the text size using text argument.Create the data frameLet's create a data frame as shown below − Live Demox

To create facets in vertical order using ggplot2 in R, we can follow the below steps −First of all, create a data frame.Then, create facetted plot with facet_grid function.After that, create the facetted plot with facet_wrap function.Create the data frameLet's create a data frame as shown below − Live Demox