Answered
Bin my Data set
v = data(:,2); % Velocity mv12 = mean(v(v>=1 & v<=2)) % Mean of velocity on [1 2].

13 years ago | 0

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adding every element of an array with every element of another array?
A = 0:4; B = 10:16; bsxfun(@plus,A,B')

13 years ago | 0

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how to change a number randomly???...
labels(randperm(numel(labels)))

13 years ago | 0

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I have a curve which follows the relation P(f)=P(o)f exp(-a). How can I get the value of 'a'. Please help me bi giving your valuable solutions
a = -Ln(P/(P_0*f))

13 years ago | 0

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Answered
white grid on black axes?
set(gca,'col','k','xcol','w','ycol','w')

13 years ago | 0

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How can I substitute a function into another equation to plot the answer?
f = @(a) (2048 + 128*a.^6 + a.^12 + sqrt(16384 + 2048*a.^6 + 80^12 + a.^18)).^(1/3); r =@(a) (1/16)*( a.^4 + a.^8./f(a) + f...

13 years ago | 1

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Answered
How can I count the number of occurences of elements within vectors from randsample?
POP = 'abcdefghijklmnop'; N = 1000; M = 5; x = zeros(N,M); for a = 1:N x(a,:) = randsample(POP,M); % Eac...

13 years ago | 0

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Answered
how to assess the standard error of coefficient estimates with regress function
Was your other question answered sufficiently? If so, please accept the answer and close that question before asking it again.....

13 years ago | 0

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array shifting problem, help
V = [6 5 4 3 0 1 2 4 0 0 0] V = [V(2:end-1) 0]

13 years ago | 0

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Answered
Find a row in a matrix in faster way
Here is a faster method, in the script I use to compare: M1 = rand(1000,8)>.5; M2 = rand(1000,8)>.5; tic % M...

13 years ago | 1

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Answered
Why after plotting on axes the ButtonDownFcn doesn't work?
>> AxesH = axes('ButtonDownFcn', 'disp(''Axes click!'')'); Axes click! Axes click! >> plot(1:10) % Now clicking doe...

13 years ago | 2

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Answered
Using multiple strings to name a variable
*Don't do it!* It is highly recommended that you do not create variables this way, as you will have no end of trouble dealing w...

13 years ago | 1

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Answered
How to calculate R-square using robust linear regression function
[brob, rob_stats] = robustfit(x,y); rsquare = corr(y,brob(1)+brob(2)*x)^2

13 years ago | 0

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i have two array x=[1 6 8 9],y=[3 6 9 14],then i plot (x,y) in matlab. i have no linear equation of x,y. i have only above array of x and y. if value of x is 4 then what is the value of y. is it possible using logic?
x=[1 6 8 9]; y=[3 6 9 14]; interp1(x,y,4,'linear')

13 years ago | 1

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Answered
Error: 'model' parameter must be a string."what should I do?!!!
From the help (which you can read too!): _SimOut = sim('MODEL', PARAMETERS) simulates your Simulink model, where 'PARAMETERS'...

13 years ago | 0

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How can I change axes labels?
set(gca,'ydir','normal')

13 years ago | 0

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Answered
Simple question about vector remainders
y = mod(x,20).*(x>20) % if no x>40 Or if some value may be greater than 40, y = max(x-20,0)

13 years ago | 1

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Answered
surfs and meshplot problem
[M,EPS] = meshgrid(1:30,11:40); v = 3; Z = exp(M.*log(EPS)+v.*EPS); surfc(M,EPS,Z) set(gcf,'render','zbuf')

13 years ago | 0

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Unwanted figure transparency in Windows 7
It might help if you set the renderer to zbuffers. set(gcf,'render','zbuffers') But if you have any transparent graphi...

13 years ago | 0

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how to do a TRENDLINE (polyfit?how?)
See the help for the <http://www.mathworks.com/help/matlab/ref/polyfit.html POLYFIT> function. I see you edited the question ...

13 years ago | 0

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Answered
Print a message if a condition is met
x = [1;2;3;4]; p = [1.5;3.5;3.2]; idx = x(1:end-1)<p & p<x(2:end); SOL = p(idx)

13 years ago | 0

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Key presses associated with colour
I have no idea what you are doing by looking at the code as there is too much left out. But from your description, this _might_...

13 years ago | 1

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Answered
Hello! How can I make MATLAB return the smallest, positive, purely real value from a column matrix?
Uf = [0.84888 + 0.74301i -1 0.31434 + 1.1736i 0.31434 - 1.1736i 3 -0.4...

13 years ago | 3

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Answered
How to find the location of a minimum value in cell array?
L = cellfun(@(x) find(x==1),q,'Un',0); Now L has all the information you need.

13 years ago | 0

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Answered
How to create a personalized colormap?
You can easily do it. Make the surface go from white to red as you say... peaks(100); set(findobj('type','surf'),'e...

13 years ago | 0

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Sum of previous elements in a matrix(dynamic way)
Say your matrix is like: A = [1 2 3; 4 5 6; 7 8 9; 10 11 12; 13 14 15; 16 17 18]; ...

13 years ago | 0

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Answered
Change Default White for Zero in Contour Plot
That produces no contour plot at all... C = contourf(longitude,latitude,temp) Warning: Contour not rendered for constant...

13 years ago | 0

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Answered
Plotting [1,n) cell arrays against each other
Try your code without calling the AXIS function. Judging by your data you do not have cell arrays, you have numeric arrays and ...

13 years ago | 0

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Answered
How to change the number of digits over 15.
digits = 40; % Only works if you have the symbolic toolbox But this only applies to symbolic variables. You cannot get mo...

13 years ago | 0

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Answered
Best way to rename a loaded variable?
Say you have the name of your variable: VAR = 'S'; Now you want to load that variable, but with the name T. This method...

13 years ago | 21

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