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Code Listing by Aslak Grinsted

Code 1-10 of 13   Pages: Go to  1  2  Next >>  page  






USAGE: noise=fftnoise(f[,Nseries])


INPUTS:
f: the fft of a time series (must be a column vector)
Nseries: number of noise series to generate. (default=1)

OUTPUT:
noise: surrogate series with same power spectrum as f. (each column is a surrogate).

------ Example: ------
%calculate if the trend is significantly different from zero
%(Null-hypothesis: a random process with the...



Moving variance

v=movingvar(x,m)

x is the timeseries.
m is the window length.
v is the variance.

Aslak Grinsted 2005



Forces the pdf of data to have a boxed distribution using a data adaptive lookup table.

[boxedX,Bx,By]=boxpdf(X)

boxedX=N(X) where N is an data adaptive monotonically increasing function.
boxedX vary between zero...



allows you to easily access atrributes and variables from a netcdf file.

Example1:
o=netcdfobj('e:meanstationpressure.cdf');
o.vars
pressure=o.vars.pressure.value;

EXAMPLE2:



SUBAXIS Create axes in tiled positions. (just like subplot)
Usage:
h=subaxis(rows,cols,cellno[,settings])
h=subaxis(rows,cols,cellx,celly[,settings])
h=subaxis(rows,cols,cellx,celly,spanx,spany[,settings])

...



USAGE: sz=gapsize(x)

EXAMPLE:
x=rand(20,1);
x(x>.5)=nan;
[x gapsize(x)]

--------------
ans =
NaN 2
NaN 2
0.33311 0
0.28511 0
0.38263 0
0.20227 0
0.37058 0



Usage: [Args=]savefigure(name[,property,value,...])

properties and default value
'Dpi',300,
'Size',[3.3 2.5] %inches
'FontSize',0 %fontsize multiplier
'MinFontSize',8 %minimum fontsize in pt
...



Forces the pdf of data to have a normal distribution using a data adaptive lookup table.

[normX,Bx,By]=normalizepdf(X)

normX=N(X), where N is an data adaptive monotonically increasing function. normX will have zero mean and...



Very fast implementation of average mutual information.

Usage: [v,lag]=ami(x,y,lag)

Calculates the mutual average information of x and y with a possible lag.


v is the average mutual information....



This function works just like the figure command in MATLAB except that you reference figures by names instead of figure handles. (you can still use the handles though)

H=fig('My figure')

The title of the window of the figure...