Answered
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 years ago | 0

Answered
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 years ago | 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 years ago | 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 years ago | 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 years ago | 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 years ago | 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 years ago | 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 years ago | 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 years ago | 0

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Answered
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 years ago | 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 years ago | 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 years ago | 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 years ago | 0

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Answered
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 years ago | 0

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Answered
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 years ago | 0

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Answered
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 years ago | 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 years ago | 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 years ago | 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 years ago | 0

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Answered
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 years ago | 3

Answered
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 years ago | 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 years ago | 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 years ago | 0

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

12 years ago | 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 years ago | 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 years ago | 1

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

12 years ago | 1

Answered
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 years ago | 0

Answered
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 years ago | 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 years ago | 0