Generate spatial data 1.0

Date Added: September 06, 2013 | Visits: 370

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The script generates spatial data with a scale-invariant power spectrum (1/f noise) and a normal error distribution.The spectral density of the data is proportional to f^BETA, where f is the frequency and BETA is the spectral exponent (BETA=0 is white noise, BETA=-2 is Brown noise).To generate Brown noise on a 10x10 grid you typespatialPattern([10,10],-2)which gives a 10x10 matrix containihng the data.1/f noise is not stationary, and so doesn't have a well defined variance. A variogram of the data show variance linearly increasing with increasing lag.Time series data can also be generated. For example, a pink noise time series of lenth 1000 is produced byspatialPattern([1000,1],-1)

Requirements: No special requirements

Platforms: Matlab

Keyword: 10x10, Containihng, Defined, Doesn, Matrix, Spatialpattern, Stationary, Variance

Users rating: 0/10

License: Shareware

Size: 10 KB

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