ThresholdPeakDetector
Advanced Analysis Library Only
AnalysisLibErrType ThresholdPeakDetector (double inputArray[], ssize_t size, double threshold, ssize_t width, ssize_t peakIndices[], ssize_t *numberOfPeakIndices);
Purpose
Analyzes the input sequence for valid peaks. This function keeps a count of the number of peaks encountered and a record of the peakIndices, which locate the points that exceed the threshold in a valid peak.
Parameters
| Input | ||
| Name | Type | Description |
| inputArray | double [] | The input sequence. |
| size | ssize_t | The length of inputArray. |
| threshold | double | The level that all valid peaks must equal or exceed for the duration of width samples. |
| width | ssize_t | The minimum width, in number of samples, for which the input sequence inputArray must remain at or above the threshold value for the candidate peak to be considered valid. |
| Output | ||
| Name | Type | Description |
| peakIndices | ssize_t [] | The indices of all valid peaks. On input, you must allocate enough space for peakIndices. To be safe, allocate (n/width+1)*sizeof(ssize_t) bytes for peakIndices. On output, numberOfPeakIndices specifies the actual number of peaks found. |
| numberOfPeakIndices | ssize_t | The number of valid peaks found. |
Return Value
| Name | Type | Description |
| status | AnalysisLibErrType | A value that specifies the type of error that occurred. Refer to analysis.h for definitions of these constants. |
Additional Information
Library: Advanced Analysis Library
Include file: analysis.h
LabWindows/CVI compatibility: LabWindows/CVI 8.0 and later