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

11年以上前 | 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')

11年以上前 | 0

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

11年以上前 | 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))

11年以上前 | 0

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

11年以上前 | 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...

11年以上前 | 1

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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...

11年以上前 | 0

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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.....

11年以上前 | 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]

11年以上前 | 0

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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...

11年以上前 | 1

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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...

11年以上前 | 2

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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...

11年以上前 | 1

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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

11年以上前 | 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')

11年以上前 | 1

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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'...

11年以上前 | 0

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

11年以上前 | 0

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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)

11年以上前 | 1

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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')

11年以上前 | 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...

11年以上前 | 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 ...

11年以上前 | 0

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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)

11年以上前 | 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_...

11年以上前 | 1

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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...

11年以上前 | 3

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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.

11年以上前 | 0

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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...

11年以上前 | 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]; ...

11年以上前 | 0

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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...

11年以上前 | 0

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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 ...

11年以上前 | 0

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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...

11年以上前 | 0

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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...

11年以上前 | 20

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