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Finding maximum value and it's location from the matrix
Try this: K = [... 8 16 -16 -8 -16 16 -20 -40 40 18 2 -6 -18 -2 6 -45 ...

11 years 前 | 18

| 已接受

已回答
how do i put iteration values into a vector?
X = 0; xold=x0; xa=x1-(f(x1)*(x1-xold))/(f(x1)-f(xold)); iter=0; X(iter + 1) = xa; while abs(xa-xold)>=D; ...

11 years 前 | 0

已回答
How do I change color of a text in a given subplot?
you can change text color as follow: x = -pi:.1:pi; y = sin(x); plot(x,y) text(-pi/4, sin(-pi/4), '\leftarrow sin(...

11 years 前 | 1

已回答
how to draw two graphs on same figure in matlab
x1 = 0:10; y1 = randi(100, 1, numel(x1)); x2 = 0:100; y2 = randi(100, 1, numel(x2)); plot(x1, y1, x2, y2)

11 years 前 | 0

已回答
Why won't MATLAB see the two strings that I am comparing as equal?
replace m with v in your last if-else structure as follow: if isequal(v,'m^3') p2 = p1; elseif isequal(...

11 years 前 | 0

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已回答
to save time the mistake is in this line how can i solve it
perhaps * or / is missing omega=(pi/tmax)*(0:nt/2-1) .* or ./ (-nt/2:-1);

11 years 前 | 0

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I have data point which fits the line y=mx+c ? How can I write code for this?
write as follow x = 0:100; m = 3; c = 4; y = m * x + c; plot(x, y)

11 years 前 | 1

已回答
How do I fit a sinusoidal curve to data? Trouble with fitit
you can try curve fitting tool for this purpose. See doc cftool And you can try different kind of curve fittings by you...

11 years 前 | 0

已回答
How to increment a vector
you can do it in a loop as follows: A = [0 0 0 0]; B = [0 0 0 0]; lim = 0.999; inc = 0.001; count = 1; tic ...

11 years 前 | 1

| 已接受

已回答
How can connect two point in plot graph?
yes. see: x = [0, 1]; y = [0, 5]; plot(x, y, '*-'), xlim([-1 2]), ylim([-1 6])

11 years 前 | 0

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已回答
How to plot a text data column from an excel file in MATLAB?
you can do it as follows: [num, txt, raw] = xlsread('filename.xlsx', 1); plot(num) set(gca,'Xtick',1:numel(num),'XTic...

11 years 前 | 1

已回答
I feel like my code is too long for what it tries to do, how can I make it shorter?
you can reduce it as follow: function YourFunctionName a = 4; b = 0.5; StepSize = [0.5, 5, 10]; for x = 1:numel...

11 years 前 | 0

已回答
I have 6 hourly data set , with 4 entries for a day, 6,12,18,24. I want a daily data set with a single data for a day, Time series is given below
you can do it as follow: fid = fopen('filename.txt'); a = textscan(fid, '%f%f%f%f%f%f%f'); % read file fclose(fid); ...

11 years 前 | 0

已回答
i need matlab code for 50 random user locations, 8 Access Points and 1 Base Station on one plane....using m file
you can do it like this: figure('Color', 'white') UserLocationX = randi(50, 1, 50); UserLocationY = randi(50, 1, 50)...

11 years 前 | 0

| 已接受

已回答
How do I eliminate strings with length < 3 from cellarray
try this: days = {'Monday', 'M', 'T', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'}; count = 1; for i = 1:length(days...

11 years 前 | 0

已回答
Replacing non-integer values
If *'a'* is your array then use the following: a(arrayfun(@(x) ~isinteger(x), a)) = 0;

11 years 前 | 0

已回答
How can I set the value of Extrapval in interp2?
you should use value *0* *or* *255* for *extrapval* depending upon the image intensity values you are dealing with

11 years 前 | 0

已回答
How to set that image to 0 (false) at those locations, instead of plotting a marker over them? That would break it apart.
try this: n = 50 ; A = double( rand(n, n+1) > 0.5 ) ; B = 2*A - 1 ; patterns = {[1 0 1; 0 1 0; 1 0 1]; ... % X ...

11 years 前 | 0

已回答
represent symbolic toolbox as a string
try this: syms r theta phi x=r*cos(theta)*cos(phi) y=r*sin(theta)*cos(phi) z=r*sin(phi) Array1 = ch...

11 years 前 | 0

已回答
I need to repeat two signals combined periodically as a single curve in matlab
you can do something like this: for i = 0:4 * pi:16 * pi t1 = linspace(i, i + 2 * pi, 100); y1 = sin(t1); ...

11 years 前 | 0

| 已接受

已回答
How can I find maxima and minima points of intensity plot of one row of an image?
you can use max(i) % to find maximum value in a row/column vector and min(i) % to find minimum value in a row/col...

11 years 前 | 0

已回答
missing value in TEXT file in matlab
For importing text type data you can use different functions like: textscan dlmread importdata fscanf fread ...

11 years 前 | 0

| 已接受

已回答
"Meshgrid" in more than 3 dimensions?
ndgrid is useful for you. See following link for more information: <http://www.mathworks.com/help/matlab/ref/ndgrid.html>

11 years 前 | 0

已回答
How to set all elements in a 2D Matrix between two indices to "1" in each row
you can do it as follow: for i = 1:size(A, 1) idx = find(A(i, :)); A(i, min(idx):max(idx)) = 1; end

11 years 前 | 0

已回答
How to convert a matrix of double to int?
you can do it as follow: a = randi(100, 4); a = int64(a); see following link for more information about integer data ...

11 years 前 | 0

已回答
Call one array from a large array made up of several others
you can do it fi you store your arrays A, B, C and D in cell array Z as follows: Z = {A, B, C, D}; then you can treat A,...

11 years 前 | 0

| 已接受

已回答
Is there a functional approach to terminate running matlab script or function (similar to pressing Control+C)?
you can use 'quit' or 'exit'. See folowwing links for more information: <http://www.mathworks.com/help/matlab/ref/exit.html> ...

11 years 前 | 0

已回答
How to clear persistent variables?
you can use: clear YourVariableName see for more information: <http://www.mathworks.com/help/matlab/ref/clear.html>

11 years 前 | 0

已回答
Max sum of array elements with condition
you can do something like this: Matrix{1,1} = {'start index'}; Matrix{1,2} = {'end index'}; Matrix{1,3} = {'sum'}; ...

11 years 前 | 0

已回答
How to read complex number from a *.csv file?
you can do it as follows: [num, str, raw] = xlsread('filename.csv'); a = str2num(cell2mat(raw));

11 years 前 | 0

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