In Matlab how do I quickly create smoothing matrices?

1. How do you smooth matrix data in Matlab?
2. How to smooth 2d data in matlab?
3. What is a smoothing matrix?

How do you smooth matrix data in Matlab?

B = smoothdata( A , dim ) specifies the dimension of A to operate along. For example, if A is a matrix, then smoothdata(A,2) smooths the data in each row of A . B = smoothdata(___, method ) specifies the smoothing method for either of the previous syntaxes.

How to smooth 2d data in matlab?

You can use convolution to smooth 2-D data that contains high-frequency components. Create 2-D data using the peaks function, and plot the data at various contour levels. Inject random noise into the data and plot the noisy contours.

What is a smoothing matrix?

In the case that the smoothed values can be written as a linear transformation of the observed values, the smoothing operation is known as a linear smoother; the matrix representing the transformation is known as a smoother matrix or hat matrix.