This example will also use the paneling options within Minitab to generate two separate graphs on one page. Clip makes it super easy to turn any public video into a formative assessment activity in your classroom. In this recipe, we will create a boxplot of the mean maximum and minimum temperatures by month. You can quickly prepare charts and calculate regression, and entering data works very similarly to Excel. '), function(x) x] ) my_names <- my_names axis( 1, at = seq( 1.5, 14, 2), labels = my_names, tick= FALSE, cex= 0.3) # Add the grey vertical lines for(i in seq( 0.5, 20, 2)) # Add a legend legend( 'bottomright', legend = c( 'High treatment', 'Low treatment'), col= c( 'slateblue1', 'tomato'), pch = 15, bty = 'n', pt.cex = 3, cex = 1.2, horiz = F, inset = c( 0.1, 0. We will use a boxplot to investigate the average values for a set of data and see the range of values. Minitab is a statistics program that allows you to quickly enter your data and then run a variety of analyses on that data. # Create dummy data variety <- rep( c( 'soldur', 'silur', 'lloyd', 'pescadou', 'X4582', 'Dudur', 'Classic'), each= 40) treatment <- rep( c( rep( 'high', 20), rep( 'low', 20)), 7) note <- c( rep( c( sample( 0 : 4, 20, replace=T), sample( 1 : 6, 20, replace=T)), 2), rep( c( sample( 5 : 7, 20, replace=T), sample( 5 : 9, 20, replace=T)), 2), c( sample( 0 : 4, 20, replace=T), sample( 2 : 5, 20, replace=T), rep( c( sample( 6 : 8, 20, replace=T), sample( 7 : 10, 20, replace=T)), 2) )) data= ame(variety, treatment, note) # Reorder varieties (group) (mixing low and high treatments for the calculations) new_order <- with(data, reorder(variety, note, mean, na.rm=T)) # Then I make the boxplot, asking to use the 2 factors : variety (in the good order) AND treatment : par( mar= c( 3, 4, 3, 1)) myplot <- boxplot(note ~ treatment *new_order, data=data, boxwex= 0.4, ylab= 'sickness', main= 'sickness of several wheat lines', col= c( 'slateblue1', 'tomato'), xaxt= 'n') # To add the label of x axis my_names <- sapply( strsplit(myplot $names, ' \.

Minitab boxplot