Fig. 5
From: The effect of probe geometry on rind puncture resistance testing of maize stalks
Distributions of R2 values between stalk strength and various rind penetration metrics. A: Boxplots of R2 values for the pointed probe (N = 8 in each group). The central line of each box plot indicates the median value. The bottom and top edges of the box indicate 25th and 75th percentiles. Whiskers extend to the most extreme data point. Notches indicate statistical significance (i.e., 95% confidence interval of the median). Note for some of the metrics the notches exceed the 25th percentile or 75th percentile because of the relatively small sample size. B: R2 values for the chamfered probe (N = 2 in each group). Horizontal lines indicate the mean value of the two R2 values