Cross Contour Drawings

Uses fft to calculate the circular cross correlation of two periodic signal vectors.This is equivalent to xc(k)=sum(u1.*circshift(u2,k)), but much faster (on the order of 500 times faster for a 1024 point signal).The package also includes two examples. One checks the calculation against the...

Fit a multivariate gaussian mixture by a cross-entropy method. Cross-Entropy is a powerfull tool to achieve stochastic multi-extremum optimization.Please visit http://iew3.technion.ac.il/CE/ for more informationsi) Please compile mex-files by the mexme_ce_gauss.m (if compiler is not setup, run...

A Kirchhoff elliptic vortex is a 2D elliptical region (or d-deDUpatchd-deDt) of uniform vorticity embedded in an inviscid, incompressible and irrotational fluid. G. Kirchhoff showed that these are exact solutions to the nonlinear Euler equations in 1876.Subsequently, A. E. H. Love analyzed the...


Platforms: Matlab

Function calculates cosine cross-similarity between time series of threshold crossings with time lags. It also calculates dominant lag and maximum value.More detailshttp://www.ida.liu.se/~agbur/Software.htm


Platforms: Matlab

This program displays the contour plot of an mxn (m ~= n) matrix, and then calculates the area for regions above a given level. This is a brute force implementation. It probably has some bugs, and there are probably more elegant ways to do this, but it does what I need. I am open to feedback on...


Platforms: Matlab

This contribution is made in order to calculate the maximum likelihood contour plots of any function. Just replace the file with your function change some basic settings in the file and there you go. The objective function has to return a scalar. There are two settings only: the range of the...


Platforms: Matlab

This function can be called exactly the same as one would call MATLAB's CONTOUR function. It directly calls CONTOUR and then takes the output and converts it into a KML file, so that the contour lines display nicely and natively in Google Earth.for anyone interested, I also have a version written...


Platforms: Matlab

normxcorr2_general computes the normalized cross-correlation of matrices TEMPLATE and A. The resulting matrix C contains correlation coefficients and its values may range from -1.0 to 1.0.Limitations of normxcorr2:The documentation of normxcorr2 states that, "The matrix A must be larger than the...


Platforms: Matlab

Leave-one-out cross-validation for PLS regression or discriminant analysispls_cv = plscv(x,y,vl,'da')input:x (samples x descriptors) for cross-validationy (samples x variables) for regression or (samples x classes) for discriminant analysis. Classes numbers must be >0.vl (1 x 1) number of latent...


Platforms: Matlab

Decision tree learning is a common method used in data mining. Most of the commercial packages offer complex Tree classification algorithms, but they are very much expensive.This matlab code uses d-de?classregtree' function that implement GINI algorithm to determine the best split for each...


Platforms: Matlab

Find Displacement between images by using cross-correlation.Easy:[dr,dc]=findoff(unreg,ref)


Platforms: Matlab

This function creates a shaded contour plot, similar to that created by the contourf function. However, the relationship between a contourf plot and its colormap (i.e. exactly which color corresponds to each contour interval), can often be confusing and inconsistent, especially if your contour...


Platforms: Matlab

Function calculates window cross-similarity between time series of threshold crossings for selected window span. Correlation between high temporal resolution records aggregated over time for records of original resolution.More informationhttp://www.ida.liu.se/~agbur/Software.htm


Platforms: Matlab

This function will return a 29-point equal loudness contour for your desired phon level. The frequencies evaulated in this function only span from 20Hz - 12.5kHz, and only 29 selectivefrequencies are covered. This is the limitation of the ISO standard.In addition the valid phon range should be 0...


Platforms: Matlab

CXCOV Circular Cross Covariance function estimates.CXCOV(a,b), where a and b represent samples taken over time interval T, which is assumed to be a common period of two corresponding periodic signals.a and b are supposed to be length M row vectors, either real or complex. [x,c]=CXCOV(a,b) returns...


Platforms: Matlab

Leave-one-out cross-validation for PLS regression or discriminant analysispls_cv = plscv(x,y,vl,'da')input:x (samples x descriptors) for cross-validationy (samples x variables) for regression or (samples x classes) for discriminant analysis. Classes numbers must be >0.vl (1 x 1) number of latent...


Platforms: Matlab

Computes cross- or auto-correlograms between two discrete time series, supplied as a list of timestamps.[tsOffsets, ts1idx, ts2idx] = crosscorrelogram(ts1, ts2, window)INPUTS:ts1 - a list of timestamps (in seconds) to use as the reference of the cross-correlogramts2 - timestamps (in seconds) used...


Platforms: Matlab

CH_XCORR Calculate cross-correlograms with a wide range of options.SYNTAX CCG = CH_XCORR(HC_L,HC_R,FRAME_LENGTH,NOVERLAP,MAXLAG,TAU) CCG = CH_XCORR(...,INHIB) CCG = CH_XCORR(...,IC_T,NORM_FLAG) CCG = CH_XCORR(...,INHIB_MODE) [CCG,IC] = CH_XCORR(...)DESCRIPTIONCCG =...


Platforms: Matlab

Connects randomly ordered 2D points into a minimal nearest neighbor contour.points2contourTristan UrsellFebruary 2012 [Xout,Yout]=points2contour(Xin,Yin,P,direction) Given any list of 2D points (Xin,Yin), construct a singly connected nearest-neighbor path in either the 'cw' or 'ccw' directions....


Platforms: Matlab

This plugin automatically hyperlinks selected words to defined URLs. The hyperlinking process works in posts and comments (given as an option) currently. If you are upgrading from any other previous version, then DO NOT deactivate the original installation of this plugin. See the installation...


Platforms: PHP