Remove Trends

Remove polynomial trend from data in the Live Editor

Description

The Remove Trends task lets you interactively remove a polynomial trend in data. The task automatically generates MATLAB^® code for your live script.

Using this task, you can:

• Choose the degree of the polynomial trend to remove from data in a workspace variable.

• Dynamically arrange breakpoints to define piecewise segments of the data.

• Specify continuity constraints.

• Visualize the computed trend and data with the trend removed.

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Open the Task

To add the Remove Trends task to a live script in the MATLAB Live Editor:

• On the Live Editor tab, click Task and select the Remove Trends icon .

• In a code block in the live script, type a relevant keyword, such as remove or detrend. Select Remove Trends from the suggested command completions.

Examples

• Add Interactive Tasks to a Live Script
• Clean Messy Data and Locate Extrema Using Live Editor Tasks
• Remove Linear Trends from Timetable Data

Version History

Introduced in R2019b

R2022b: Plot multiple table variables

Simultaneously plot multiple table variables in the display of this Live Editor task. For table or timetable data, to visualize all selected table variables at once in a tiled chart layout, set the Variable to display field.

R2022b: Append detrended table variables

Append input table variables with table variables containing detrended data. For table or timetable input data, to append the detrended data, set the Output format field.

R2022a: Live Editor task does not run automatically if inputs have more than 1 million elements

This Live Editor task does not run automatically if the inputs have more than 1 million elements. In previous releases, the task always ran automatically for inputs of any size. If the inputs have a large number of elements, then the code generated by this task can take a noticeable amount of time to run (more than a few seconds).

When a task does not run automatically, the Autorun icon is disabled.

• To run a task manually, on the Live Editor tab, click the Run Section button.

• To enable running the section automatically, click the Autorun icon. The icon updates to display the enabled state.

R2021a: Operate on multiple table variables

This Live Editor task can operate on multiple table variables at the same time. For table or timetable input data, to operate on multiple variables, select All supported variables or Specified variables. Return all of the variables or only the modified variables, and specify which variable to visualize.