Charts
Spread Plot
A clean & minimalist alternative to the bar chart.
What is a spread plot?
A spread plot shows identical summary statistics as a bar chart, but does so using a more minimalist aesthetic. Instead of bars, the measure of central tendency is represented by a larger line surrounded by smaller error bars.
While often personal preference. Some prefer spread plots to bar charts because there is less visual weight on the bars themselves and more visual harmony between the aggregate measure and the error bars.
Spread plots excel at comparing discrete categories of data, allowing readers to easily visualize rankings, trends, and comparisons between groups.
Default vertical spread plot
Includes an overlay of the individual points representing the distribution of the data
Distribution dot plot
It is good practice to overlay a distribution dot plot on top of summary statistics. This is Graphmatik's default behaviour. It enables viewers to more easily see the shape of the underlying data, sample size, and any potential outliers.
Easily swap directions
Alternate between vertical or horizontal spread plots by switching types within the data workspace.
Chart properties
Prop | Default | Description |
---|---|---|
central tendency | mean | mean The sum of a set of values divided by the number of values in the set. median The middle most value of a sorted set of numbers. |
error bars | SEM | standard error of the mean (SEM) How much the sample means vary from the population mean mean standard deviation (SD) A measure of the variation of a set of values around their mean. mean 95% confidence interval (95% CI) 95% probability that the population parameter lies within this range. mean or median range The difference between the highest and lowest values within a set. mean or median Interquartile range (IQR) The middle 50% of a set of values (i.e. 3rd quartile - 1st quartile).median |
sort | none | none The dataset is arranged in insertion order. ascending The dataset is arranged from smallest to largest value. descending The dataset is arranged from largest to smallest value. |