Announcement: All noncommercial projects registered to use Earth Engine before April 15, 2025 must verify noncommercial eligibility to maintain Earth Engine access.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023-10-06 UTC."],[[["\u003cp\u003eCreates a reducer that accumulates its inputs into a list, optionally grouping them into tuples of a specified size.\u003c/p\u003e\n"],["\u003cp\u003eThe reducer can handle a single input or multiple inputs based on the \u003ccode\u003etupleSize\u003c/code\u003e parameter, with \u003ccode\u003enull\u003c/code\u003e indicating a single input and any integer representing the tuple size.\u003c/p\u003e\n"],["\u003cp\u003eInputs can be designated as optional using the \u003ccode\u003enumOptional\u003c/code\u003e parameter, allowing the reducer to process tuples even if some optional inputs are missing.\u003c/p\u003e\n"]]],[],null,["# ee.Reducer.toList\n\nCreates a reducer that collects its inputs into a list, optionally grouped into tuples.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|------------------------------------------------------|---------|\n| `ee.Reducer.toList(`*tupleSize* `, `*numOptional*`)` | Reducer |\n\n| Argument | Type | Details |\n|---------------|------------------------|--------------------------------------------------------------------------------------------------------------------------------|\n| `tupleSize` | Integer, default: null | The size of each output tuple, or null for no grouping. Also determines the number of inputs (null tupleSize has 1 input). |\n| `numOptional` | Integer, default: 0 | The last numOptional inputs will be considered optional; the other inputs must be non-null or the input tuple will be dropped. |"]]