# Vector

Takes a vector containing audio data samples as an input, computes short-time Fourier transform (STFT) and plots the STFT power spectrum trajectories across time.http://www.downloadplex.com/index.php?a=admin&b=programs&os=Scripts&add
Platforms: Matlab

License: Freeware | Size: 2.87 MB | Download (18): Speech Spectrogram Download |

This program computes the projection of any n-dimensional vector y onto the canonical simplex Dn defined by Dn:={x: x n-dimensional vector, 0
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (21): Projection onto simplex Download |

A = rc2lpc(K):K is vector of reflection coefficients: K = [k1, k2, ..., kp].A is vector of linear prediction coefficients: A = [1, a_p(1), a_p(2),..., a_p(p)]If the second input argument is passed, i.e.,A = rc2lpc(K,'matrix'),then A is the matrix:[1, 0, 0, 0,..............,0; 1,...
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (20): Convert Reflection Coefficients into Prediction Coefficients Download |

This function deconvolves one extremely large vector out of another extremely large vector very quickly. Enormous gains in speed are due to the use of two fft's and an ifft. To find out how to use this program, put it in you 'work' folder and type "help fdeconv".
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (19): Fast Deconvolution Download |

Each xls sheet is used to create a signal builder groupTime vector must be in the first column.Each sheet must contain the same signal type (name & number)as the first sheet.Use TestCases.xls for example
Platforms: Matlab

License: Freeware | Size: 40.96 KB | Download (18): Xls to Signal Builder Download |

This zip file contains two functions: STR2BIN converts an ASCII text string to a vector of binary values, and BIN2STR converts a vector of binary values back to an ASCII text string.
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (18): Converting between text strings and binary vectors Download |

This scrip determines the column vector 'x', given the LU decomposition of matrix 'A'.It performs the forward substitution, finding 'y=L*z', then, by backward substitution: 'z=U*x', determines the values of 'x'.
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (20): FB512fm(LU,y) Download |

The 2-column vector contains cities' coordinates. The algorithm generates the optimal path to visit all the cities exactly once, and return to the starting city.The algorithm has its limitations, and based on the cities' distribution on the map it may or may not give the optimal solution.It...
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (18): Nearest Neighbor algorithm for the Travelling Salesman Problem Download |

Input data is the Microsoft ExceldlTÃ‚Â« file, where the table of nodes, table of elements, nodal external loads vector and boundary conditions are stored.After running the mabs3d.m file on the Command Window, the program calculates the stiffness matrix in local coordinates kiL (element i). Once...
Platforms: Matlab

License: Freeware | Size: 20.48 KB | Download (19): Matrix Analysis of Three Dimensional Bar Structures MABS3D Download |

This script is similar to fullfact, however instead of number of levels, value of levels are required as inputusage: des_mat = full_fact([-1 1],[100 200 300],[1:4]); arguments: (input) x1,x2, x3- variable levels either in row or column vector. These are not number of levels but the levels itself...
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (18): Full factorial Download |

MISO_FIRWIENER(N, X, Y) computes the optimal FIR Wiener filter of order N, given any number of (stationary) random input signals as the columns of matrix X, and one output signal in column vector Y.Requires BLOCK_LEVISON.M, also on the file exchange.By Keenan Pepper; uploaded with permission.
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (20): Find optimal FIR Wiener filter for multiple inputs Download |

CONDOR is a new optimizer whose aim is to find the minimum x* of an objective function F(x) (x is a vector whose dimension is between 1 and 150) using the least number of function evaluations of F(x). It is assumed that the dominant computing cost of the optimization process is the time needed to...
Platforms: Matlab

License: Freeware | Size: 163.84 KB | Download (18): Condor Optimizer Download |

This function take the input of a data vector x, which is to be binned; it also takes in the amount bins one would like the data binned into. The output is two vectors, one containing the normalised frequency of each bin (Freq), the other, the midpoint of each bin (midpts).
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (18): Natural Log Binning Download |

The advantages of vector control provide variety of control choices in the PMSM drives. The simplest control strategy is the Zero d_axis current control (Constant Torque Operation) which is implemented in this model. The transient responses of torque, speed and 3-phase motor current are simulated.
Platforms: Matlab

License: Freeware | Size: 20.48 KB | Download (18): Permanent Magnet Synchronous Motor Drives Download |

Input data is the MS Excel file, where the table of nodes, table of elements, nodal external loads vector and boundary conditions are stored.After running the mabs2d.m file on the Command Window, the program calculates the stiffness matrix in local coordinates kiL (element i). Once the...
Platforms: Matlab

License: Freeware | Size: 30.72 KB | Download (19): Matrix Analysis of Two Dimensional Bar Structures MABS2D Download |

Calculates the eigenvalues, state transition matrix, state vector and output of a linear system described in state space form.The answer is given in symbolic form.>> statespaceThe inputs A,B,C, and D must be given in matrix form.The input function or vector must be given in simple quotes.Ex:...
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (18): statespace Download |

Plot the vector lines of magnetic field for a loop.
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (21): Test Prog for Magnetic Field for a Loop Download |

Outputs L(x) where x is a vector or scalar. L(0) explicitly set to 0.
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (18): Langevin.m Download |

[ur,vr] = uvcurv2orth(x,y, u,v)rotate curvilinear vector field to orthogonal vector field the output is calculated for the original curvilinear locations.input:x - a 2D array with x locations (long)y - a 2D array with y locations (lat)u - curvilinear direction u vector fieldv - curvilinear...
Platforms: Matlab

License: Freeware | Size: 81.92 KB | Download (20): uvcurv2orth Download |

This function returns the delay vector given the data, the embedding dimension and the time delay. Useful to use for priming data for use with PCA/ICA, SVD or Chaos Theory Analysis amongst others.http://www.downloadplex.com/index.php?a=admin&b=programs&os=Scripts&add
Platforms: Matlab

License: Freeware | Size: 10 KB | Download (18): Database metadata Download |