| DSP Blockset | |
Remove a linear trend from a vector.
Library
Description
The Detrend block removes a linear trend from the length-M input vector, u, by subtracting the straight line that best fits the data in the least-squares sense.
The least-squares line, û = ax + b, is the line with parameters a and b that minimizes the quantity
for M evenly-spaced values of x, where ui is the ith element in the input vector. The output, y = u-û, is an M-by-1 column vector (regardless of the input vector dimension) with the same frame status as the input.
Dialog Box
See Also
| Cumulative Sum |
DSP Blockset |
| Difference |
DSP Blockset |
| Least Squares Polynomial Fit |
DSP Blockset |
| Unwrap |
DSP Blockset |
detrend |
MATLAB |
| | Delay Line | Difference | |
