When To Use an Area Spline Graph
Area spline graphs are useful when you want to show the relationship between two numeric variables that have a smooth relationship, and you need a solid fill under the line. The solid fill can be useful for presentations, where some viewers may be a long way from your slide and might not be able to see a single line on a line graph.
Regression analysis can instead be used to quantify the relationship between two numeric variables.
How To Make an Area Spline Graph
Upload your data
Use the upload section at the top of the page to upload your data.
Select the column for the horizontal x-axis
Choose the independant variable for the x axis. The independant variable should not change because of the independant variable.
Select the column for the vertical y-axis
Choose the dependant variable for the vertical y-axis. The dependant variable should be influenced by the value of the independant x-axis
Download your area spline graph
Use the download button on the top rigtht of the graph to download a png file