Answered

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 ...

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 ...

nästan 11 år ago | 18

| accepted

Answered

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; ...

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; ...

nästan 11 år ago | 0

Answered

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(...

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(...

nästan 11 år ago | 1

Answered

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)

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)

nästan 11 år ago | 0

Answered

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(...

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(...

nästan 11 år ago | 0

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Answered

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);

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);

nästan 11 år ago | 0

Answered

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)

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)

nästan 11 år ago | 1

Answered

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...

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...

nästan 11 år ago | 0

Answered

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 ...

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 ...

nästan 11 år ago | 1

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Answered

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])

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])

nästan 11 år ago | 0

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Answered

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...

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...

nästan 11 år ago | 1

Answered

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...

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...

nästan 11 år ago | 0

Answered

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); ...

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); ...

nästan 11 år ago | 0

Answered

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)...

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)...

nästan 11 år ago | 0

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Answered

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...

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...

nästan 11 år ago | 0

Answered

Replacing non-integer values

If *'a'* is your array then use the following: a(arrayfun(@(x) ~isinteger(x), a)) = 0;

Replacing non-integer values

If *'a'* is your array then use the following: a(arrayfun(@(x) ~isinteger(x), a)) = 0;

nästan 11 år ago | 0

Answered

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

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

nästan 11 år ago | 0

Answered

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 ...

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 ...

nästan 11 år ago | 0

Answered

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...

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...

nästan 11 år ago | 0

Answered

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); ...

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); ...

nästan 11 år ago | 0

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Answered

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...

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...

nästan 11 år ago | 0

Answered

missing value in TEXT file in matlab

For importing text type data you can use different functions like: textscan dlmread importdata fscanf fread ...

missing value in TEXT file in matlab

For importing text type data you can use different functions like: textscan dlmread importdata fscanf fread ...

nästan 11 år ago | 0

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Answered

"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>

"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>

nästan 11 år ago | 0

Answered

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

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

nästan 11 år ago | 0

Answered

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 ...

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 ...

nästan 11 år ago | 0

Answered

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,...

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,...

nästan 11 år ago | 0

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Answered

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> ...

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> ...

nästan 11 år ago | 0

Answered

How to clear persistent variables?

you can use: clear YourVariableName see for more information: <http://www.mathworks.com/help/matlab/ref/clear.html>

How to clear persistent variables?

you can use: clear YourVariableName see for more information: <http://www.mathworks.com/help/matlab/ref/clear.html>

nästan 11 år ago | 0

Answered

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'}; ...

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'}; ...

nästan 11 år ago | 0

Answered

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));

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));

nästan 11 år ago | 0