laatikkoruutuplot

Laatikkoruutuplot, also known as box plot or box-and-whisker plot, is a standardized way of displaying the distribution of data based on a five-number summary: minimum, first quartile (Q1), median, third quartile (Q3), and maximum. It is a non-parametric representation, meaning it does not assume any underlying distribution of the data.

The box in the plot represents the interquartile range (IQR), which contains the middle 50% of the data. The line inside the box is the median, dividing the data into two halves. The "whiskers" extend from the box to the minimum and maximum values within a certain range, typically 1.5 times the IQR from the quartiles. Data points that fall outside this range are plotted individually as outliers.

Laatikkoruutuplots are particularly useful for comparing the distributions of different groups or datasets. They quickly reveal measures of spread, central tendency, and the presence of outliers. They are commonly used in statistics, data analysis, and exploratory data analysis to visualize data variability and identify potential anomalies. Their compact nature allows for easy comparison of multiple distributions on the same graph.