matlab for neuroscientists

Matlab learning: importdat function details, Matlab importdat Importdata Load data from fileSyntax Importdata (filename)A = importdata (filename)A = importdata (filename, delimiter)A = importdata (filename, delimiter, nheaderlines)[A, delimiter] = importdata (...)[A, delimiter, nheaderlines] = importdata (...)[...] = Importdata ('-pastespecial ',...)Description Importdata (filename) loads data from filenam

MATLAB is standard, numpy equivalent to the post-transpose calculation>> x = [2,0,-1.4;2.2,0.2,-1.5;2.4,0.1,-1;1.9,0,-1.2]x =2.0000 0-1.40002.2000 0.2000-1.50002.4000 0.1000-1.00001.9000 0-1.2000>> CoV (x)Ans =0.0492 0.0142 0.01920.0142 0.0092-0.00580.0192-0.0058 0.0492>> xt=x 'XT =2.0000 2.2000 2.4000 1.90000 0.2000 0.1000 0-1.4000-1.5000-1.0000-1.2000>> CoV (XT)Ans =2.9200 3.1600 2.9500 2.67003.1600 3.4300 3.1750 2.88502.9500 3.1750 3.0100 2.70502.6

(1) margin function: Calculate amplitude margin and phase angle margin and corresponding turning frequency Margin (mag,phase,w): The amplitude of mag (not in db), phase angle phase, and angular frequency w vectors obtained by the bode instruction are plotted with a bode graph with headroom and corresponding frequency display. Margin (Num,den): Calculates the amplitude margin and phase angle margin of the continuous system transfer function representation and plots the corresponding baud plot. S

Code of the book "Digital Image Processing Principles and Practices (MATLAB)" Part6, matlab Digital Image ProcessingThis article is part of the code series "Part6" in the book "Digital Image Processing Principles and Practices (MATLAB version)", which records the code from 281st to 374th pages for readers to download and use. For the code execution result, see th

Configure the matlab Runtime Environment (MCR) and matlab MCR in linux MCR (matlab compilerruntime) is available in the installed matlab)Find the mcrinstaller.zip installation package under "maid/compiler/deploy/glnxa64".Unzip the package and run the install command. Select the path to install the package. Environmen

Code Part8 and MATLAB Digital Image Processing in digital image processing principles and practices (matlab)This article is Part 8 of the Code series in the book "Digital Image Processing Principles and Practices (MATLAB)", which records the code from pages 375th to 415th for readers to download and use. So far, the code release of this book is coming to an end.

Sample Code for solving Matlab Genetic Algorithm Optimization Problems, matlab Genetic Algorithm The Code is as follows: Function m_main () clearclcMax_gen = 100; % running algebra pop_size = 100; % population size chromsome = 10; % chromosome length pc = 0.9; % crossover probability pm = 0.25; % mutation probability gen = 0; % statistical algebra % initialize init = 40 * rand (pop_size, chromsome)-20; pop

The charm of dynamic visual data visualization D3,processing,pandas data analysis, scientific calculation package NumPy, visual package Matplotlib,matlab language visualization work, matlab No pointers and references is a big problemD3.js Getting Started GuideWhat is D3?D3 refers to a data-driven document (Data-driven documents),According to the official definition of D3:D3.js is a JavaScript library that c

Output results: 3 23 %: Take the remainder /: Divide division to divide the number of parts (The difference with MATLAB code) Double AA = 24.4; Double bb = 3.2; Double cc = aa/bb; cout Matlab: % to calculate gain% of RGB three channel Rgain = Ymax/ravGgain = Ymax/gavBgain = Ymax/bav Ymax = 235 Rav = 133.4989 Gav = 123.8576Bav = 149.9403 Odd, you need to use the gain factor, but the outp

Direct code% cosine similarity algorithm to find the similarity of two picturesPicture1 = Imread (' d:\\ bracelet. jpg ');p Icture2 = Imread (' d:\\ bracelet 2.jpg ');p Icture1 = Rgb2gray (picture1);p icture2 = Rgb2gray (picture2); t1=picture1;[A1,B1]=size(t1); T2=picture2;t2=imresize (T2,[A1 B1],' Bicubic ');% scaled to a consistent sizet1=round(t1); t2=round(T2); e1=Zeros(1, the); e2=Zeros(1, the);% get histogram distribution/ for I=1: A1 for J=1: B1 m1=t1 (I,J)+1; M2=t2 (I,J)+1; E1 (M1) =E1 (

Visual c ++ is one of the mainstream application development environments. The development environment is powerful and the development process is fast. In terms of scientific computing, function libraries are not rich enough, and it is inconvenient to read and display data graphs. MATLAB is a combination of numerical analysis, matrix computing, signal processing, and graphic display. It contains a large number of highly integrated functions for callin

In scientific research and engineering application, the algorithm often has to do a lot of mathematical calculation, including matrix operation. These operations are generally difficult to use manually accurate and fast, but the use of computer programming corresponding procedures to do approximate calculation. The current popular use of basic, FORTRAN and C language programming program, not only need to have a deep understanding of the algorithm, but also need to master the language used in the

). Name); Disp (cm); eval (cm); Catchdisp (LastErr); Disp ('IGNORE If the file is a C + + file which is not a Mex file (ie without a mexfunction inside)'); ENDENDCD (olddir);After the creation, we can click the Run button in MATLAB to compile the CPP file, after compiling you will find that the folder is more than the suffix. mexw64 file, where w represents the Windows system, 64 for the system is 64-bit.Next we test whether the ncut algorit

This is a more difficult problem, please see:Here are seven points, I want to sort these seven points, and then connect to achieve the following effect:How does this come true? First write the steps and then the code:1, first identify the centroid of multiple points2. Connect and draw points via centroidOff-topic, about the connection and PIP operation is how to do, this is through the original image of the data modified to doDirectly to the code, as well as the picture saved in the code of the

MATLAB Image Processing _ Fourier transformation, matlab Fu Li Use relevant functions such as fft in matlab. The Code is as follows: Clear‑clc‑img‑imread('test.jpg '); img = rgb2gray (img); f = fft2 (img); % Fourier transform f = fftshift (f); % symmetric image r = real (f ); % calculate the real part I = imag (f) of the image in the frequency domain; %

The method of random disturbance of training samples in matlab, matlab Samples Use randperm () to generate random seeds, and then swap locations for random sample extraction. Official content: The built-in function randperm (n) of Matlab generates random orders of integers ranging from 1 to n without duplicates. Then, we can use it to obtain random numbers withou

The P file is a pre-parsed version (preparsed version) corresponding to the M file ). Because when you execute the M file for the first time, Matlab needs to parse the file (PARSE) Once (the parsed content after the first execution will be placed in the memory for the second execution, that is, the second execution does not need to be parsed), which virtually increases the execution time. So we will explain it in advance. When we use the M file later,

Basic Learning of MATLAB ---------------- extreme values and integral problems of functions MATLAB implementation

MATLAB Image Processing _ homomorphic filtering, matlab Image Processing homomorphic Homomorphic filtering: uses the generalized superposition principle to filter the homomorphic system. Homomorphic filtering is an image processing method that combines frequency filtering and grayscale transformation. It relies on the image illumination/reflectivity model as the basis for processing in the frequency domain,

Matlab reads 3D point cloud data Stanford rabbit, matlab Stanford Where the point cloud data is Stanford rabbit. After the 3D point cloud reconstruction, people can take a good look, but simply read the program. As a beginner, it is better, and further research is still behind, if you have the opportunity to continue uploading, for example, delauny triangle mesh division, you also want to further study the