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--- sift:application:exclude_data [2026/03/10 15:33] – [Tutorials] wikisysop
+++ sift:application:exclude_data [2026/07/06 19:51] (current) – [How Exclusions Work] desmond
@@ Line 1: / Line 1: @@
 ====== Excluding Data in Sift ======
-In biomechanics, some trials or trace may not be suitable for analysis. A missed marker, an incorrect force plate assignment, or an unexpected movement during a trial can all introduce noise into the results. Rather than deleting these trials outright, Sift allows users to flag them for exclusion, which keeps the analysis clean while preserving the original data.
+In biomechanics, some trials or traces may not be suitable for analysis and require exclusion. A missed marker, an incorrect force plate assignment, or an unexpected movement during a trial can all introduce noise into the results. Rather than deleting these trials outright, Sift allows users to flag them for exclusion, which keeps the analysis clean while preserving the original data.
 Data cleaning is an ongoing process, and exclusions can be revisited at any time as new issues are identified.
@@ Line 7: / Line 7: @@
 ===== How Exclusions Work =====
-Excluding a trace removes it from analysis (and optionally, plots), but does not delete the underlying data. Exclusions can be undone at any time using Ctrl+Z or by right-clicking a workspace and selecting Re-Include Data, and excluded traces can be toggled back on to review them alongside valid data.
+Excluding a trace removes it from analysis (and optionally, plots), but does not delete the underlying data. Exclusions can be undone at any time using Ctrl+Z or by right-clicking a workspace and selecting Re-Include Data, and visibility of excluded traces can be toggled back on to review them alongside valid data.
 Sift supports three levels of exclusion:
   * **Individual trace**: exclude a single signal cycle only
+{{:sift:application:individual_trace_exclusion.png?400|Individual trace exclusion}}
   * **All traces at those frames**: exclude all queried signals during the same cycle
+{{:sift:application:traces_at_frames_exclusion.png?400|Exclude traces by frames}}
   * **Entire trial**: exclude all data from the affected trial
-===== Writing Exclusions Back to the Data =====
+{{:sift:application:entire_trial_exclusion.png?400|Exclude entire trial}}
-Once exclusions have been identified, they can be written back to the original workspace files using the [[sift:application:update_cmzs_dialog|Update CMZs Dialog]]. This is done by adding a "Bad" event using one of three methods:
+===== Writing Exclusions Back to the Data  (Optional) =====
+Once exclusions have been identified, they can be written back to the original workspace files using the [[sift:application:update_cmzs_dialog#excluded_traces|excluded traces]] option in the Update CMZs Dialog. This is done by adding a "Bad" event using one of three methods:
   * **Only exclude individual traces**: Flags a single signal for a single cycle. A signal-specific event (e.g. "AnkleAngle_BAD") is written to the workspace, and the group definition is updated to exclude any cycle containing that event.