找到当地的极端
Find local maxima and minima in the Live Editor
Description
The找到当地的极端task lets you interactively find local maxima and local minima in data. The task automatically generates MATLAB®code for your live script.
Using this task, you can:
Find local maxima, minima, or both in data from a workspace variable.
Adjust parameters to locate fewer or more extrema.
Automatically visualize the detected extrema.
Open the Task
To add the找到当地的极端MATLAB LIVE编辑器中实时脚本的任务:
On theLive Editortab, clickTask并选择找到当地的极端icon。
In a code block in the live script, type a relevant keyword, such as
extrema
或者寻找
。选择找到当地的极端从建议命令完成。
Examples
Parameters
输入数据
— Valid input data from workspace
vector | table | timetable
This task operates on input data contained in a vector, table or timetable. The data can be of typesingle
,double
,logical
, or signed or unsigned integer types such asint64
。
When providing a table or timetable for the input data, specifyAll supported variables用支持类型的所有变量操作。万博1manbetx选择All numeric variablesto operate on all variables of typesingle
或者double
, or signed or unsigned integer types. To choose specific supported variables to operate on, selectSpecified variablesand then select the variables individually.
Flat selection
— Flat region indicator
Center
(默认)|First
|Last
|All
当您具有本地连续超值值时,指定平坦的区域指标。
Method | Description |
---|---|
Center |
Indicates only the center element of a flat region as the local extrema. |
First |
Indicates only the first element of a flat region as the local extrema. |
Last |
Indicates only the last element of a flat region as the local extrema. |
All |
Indicates all the elements of a flat region as the local extrema. |
Min. prominence
— Minimum prominence of extrema
0
(默认)|正标量
Specify a minimum prominence to return only local extrema whose prominence is at least that value. Higher prominence values return fewer detected extrema.
The prominence of a local maximum (or peak) is a measure of how the peak stands out with respect to its height and location relative to other peaks. The prominence of a local minimum (or valley) is a measure of how the valley stands out with respect to its depth and location relative to other valleys.
Prominence window
— Window for computing prominence
Centered
(默认)|Asymmetric
Specify a prominence window type and size to define a window of neighboring points for which to compute the prominence for each local extrema.
Window | Description |
---|---|
Centered |
指定的窗口长度以当前点为中心。 |
Asymmetric |
Specified window containing the number of elements before the current point and the number of elements after the current point. |
窗口尺寸相对于X-axisvariable units.