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how to draw perpendicular line on angular line..
You can use _line_ and swap the Y-coordinate values to get the perpendicular line: line([2 5],[3 7]) hold on line([2 ...

12年以上前 | 0

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creating a temporary file in specified directory
You can import a file from wherever directory it is. Just point to the full direction: importdata('D:\my_dir1\mydir2\my_Dat...

12年以上前 | 0

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cost funtion between observed and measured .
From Matlab documentation: In general, diff(X) returns the differences calculated along the first non-singleton (size(X,d...

12年以上前 | 0

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Remove NaNs in matrices within cell array
for single line solution, A. Abdelmalek's is the solution. You can perform the same by using the following: A = [3 NaN NaN...

12年以上前 | 1

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Displaying rise time on a plot
Select the data tick option on the plot window: <</matlabcentral/answers/uploaded_files/4138/p1.png>> <</matlabcentr...

12年以上前 | 0

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how to do it...
Option 1: my_data_time = xlsread('your_excell.xls','A1:A10'); % first column my_data_pressure = xlsread('your_excell.xls...

12年以上前 | 0

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how we can change an image into gray scale? and how to detect humps in an given road image?
start by grayscaling your image: I = rgb2gray(your_RGB_image); The hump-detection algorithm is not trivial, but that's t...

12年以上前 | 0

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i want to know how to find the size of original image & compressed image..
Use _size_ for it. [rows cols layers] = size(your_image); % where your_image is the name you gave to your image when readin...

12年以上前 | 0

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How can I set up an RGB threshold
There are easy ways to do this, but if you MUST use for loops and if conditionals: [image_R, image_G, image_B] = seperate_R...

12年以上前 | 0

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Significance of curve Fit
You should perform a Fast Fourier Transform ( _fft_ ), this will present the frequencies that are present in your data. If it is...

12年以上前 | 1

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How to do band pass filtering?
%By-pass filter with trnasfer function ( change as you please) % 1000 s %-------------------------- %100 s^2 + 11000 ...

12年以上前 | 0

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How do I solve a cable equation problem using MATLAB?
YOu need to use _pdepe_ function: function to solve partial derivative equations. For a good example, go to <http://www.math...

12年以上前 | 0

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Need help with textscan
Your are mixing strings with doubles. Try this out. You'll end up with a cell array containing the heading and the first three d...

12年以上前 | 0

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plotyy is not working properly???
Your code is right, I run it and it works for me with no problem. Besides, it is from matlab documentation, for which it should ...

12年以上前 | 0

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Iam new to matlab... Beginner..
rows = input('Enter matrix size: '); % user input end_cell = strcat(char(65+rows),num2str(rows)); range = strcat('A1:',e...

12年以上前 | 0

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help me on image blending ??
If both images have the same size, you can add one into the other: I1 = image_1; I2 = image_2; I_blended = I1 + I2;

12年以上前 | 0

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creating a .res with 2 variables side by side (2 columns)
x = 0:.1:1; A = [x; exp(x)]; fileID = fopen('exp.res','w'); fprintf(fileID,'%6s %12s\n','x','exp(x)'); fprintf...

12年以上前 | 0

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How can I fit my data to an inverse tangent function?
x = [0.7 0.8 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4,2.6]; y = [10 11 15 15 15 17 20 25 34 47 75 100 140 15...

12年以上前 | 0

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I keep getting an error about my inputs in a function I am trying to create?
function output = dim_check(dimension,name) output = dimension; 'name' = name % ---------> this is the cause of you...

12年以上前 | 0

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How do I split a color image into its 3 RGB channels?
my_rgb = my_image; R = my_rgb(:,:,1); G = my_rgb(:,:,2); B = my_rgb(:,:,3);

12年以上前 | 3

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position of the element have small value
A= [ 3 4 5 6 7; 1 2 4 9 4; 5 3 0 7 6; 6 0 1 8 5; 2 9 8 1 3]; [C I] = min(A,[],1); C is the array of min...

12年以上前 | 0

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First fscanf(s) returns an empty array.
You say "almost" every first reading of the serial port returns an empty array. That could mean that there's nothing in the buff...

12年以上前 | 0

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how can i paste a cropped head of one image into another?
I = imread('cameraman.tif'); head = I( (35:85),(100:140) ); % crop of the head % code to transform head here I( (...

12年以上前 | 0

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Find local differences in a matrix
For k=2:3 D = cmap(:,k) - cmap(:,k-1); end

12年以上前 | 0

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Installing R2013a on Mountain Lion
Make sure the installation files are executable. Use _chmod_ as sudo if not. I had a similar problem that was solved once some f...

12年以上前 | 0

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subtraction of two images
You can not subtract images with different sizes the same way you can not subtract arrays with different lengths: a=[1 2 3...

12年以上前 | 1

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Double Slider, Two slide bars
There is not. You have to code it yourself.

12年以上前 | 1

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i have following image in double(i.e range is 0-1) & i want to convert it to 1's and -1's form,just convert 0 to -1.i tried foll code but its not working.please help. :(
I=rgb2gray(rp7); I2=im2bw(I); I3 = double(I2); I3(I2==0) = -1;

12年以上前 | 0

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How to change axis legend orientation
You can try this link: <http://www.mathworks.com/matlabcentral/fileexchange/27812-rotate-x-axis-tick-labels/content/rotateXLabe...

12年以上前 | 0

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shared library in linux/ubuntu issue
Did you change the ownership of the file and its access permissions? ( unix commands _chmod_ _chown_)

12年以上前 | 0