splitapply

Split data into groups and apply a function.

📝Syntax

Y = splitapply(func, A, G)
Y = splitapply(func, A1, ..., An, G)
[Y1, ..., Ym] = splitapply(func, ..., G)

📥Input Arguments

Parameter	Description
func	a function handle applied to each group.
A, A1, ..., An	the data to split by group (rows).
G	group numbers, typically from findgroups.

📤Output Arguments

Parameter	Description
Y	the results, with one row per group.

📄Description

Y = splitapply(func, A, G) splits A into groups according to G and applies func to each group, concatenating the results.

💡Examples

G = findgroups([1; 2; 1; 2; 1]);
Y = splitapply(@sum, [10; 20; 30; 40; 50], G)

🔗See Also

🕔Version History

Version	Description
2.0.0	initial version