Shift
Advanced Analysis Library Only
AnalysisLibErrType Shift (double inputArray[], ssize_t numberOfElements, ssize_t numberOfShifts, double outputArray[]);
Purpose
Shifts the elements of the input array a specified number of places using the following formula:
yi = xi – shifts
You can specify the number of shifts to be in the positive (right) or negative (left) direction.
The following example uses the Shift function to shift an array by 20 samples.
double inputData[200], shiftedData[200];
int numShifts;
AnalysisLibErrType status;
numShifts = 20;
// Generate an array of random numbers
status = Uniform (200, 17, inputData);
status = Shift(inputData, 200, numShifts, shiftedData);
Parameters
| Input | ||
| Name | Type | Description |
| inputArray | double [] | Input array to shift. |
| numberOfElements | ssize_t | Number of elements in the input array. |
| numberOfShifts | ssize_t | Number of shifts performed on the input array. If numShifts is positive, the shift is to the right. If numShifts is negative, the shift is to the left. This is not a circular shift. Shift does not retain the shifted values and replaces the trailing portion of the shift with zero. |
| Output | ||
| Name | Type | Description |
| outputArray | double [] | Shifted array. |
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 3.1 and later