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Matrix with the values of the loop
N = ... Value = nan(1,N) % pre-allocation, speeding things up for k=1:N % loop Value(k) = ... % calculation here ...

oltre 10 anni fa | 0

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help with bar plotting?
Plot them in a single statement. Concatenate the X-values and the Y-values to do that: X = [2.84 3.834]; Y = [0.091713 1...

oltre 10 anni fa | 0

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how can I multiply a vector by scalar?
C is a cell array. I think you want the content of a cell in C to be multiplied by 2.7. You can do this using cellfun C = {...

oltre 10 anni fa | 0

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how to insert the column [60;80] into the third column
For what it is worth, take a look at INSERTROWS, which you can use with transpose to get "insertcolumns" after (or before) a spe...

oltre 10 anni fa | 0

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how we can plot whole the ans
First I suggest you put the output of the function in a variable, so instead of using MyFunction(...) use Res...

oltre 10 anni fa | 0

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How to convert "do loop" of fortran to matlab?
You have converted them to nested for-loops, in which the inner loop is executed multiple times. I think you want two separate l...

oltre 10 anni fa | 0

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Develop an m-file function to compute v as a function of t. Develop a script to plot v versus t from t=-5 to 50 .
Create a function m-file like this: function Value = calculateValue (t) Value = zeros(size(t)) % default values ...

oltre 10 anni fa | 0

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combination function using ndgrid
Take a look the content of ALLCOMB, which does exactly what you're after btw... <http://www.mathworks.com/matlabcentral/filee...

oltre 10 anni fa | 0

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how to insert the column [60;80] into the third column
A = [1 5 6 ; 0 3 8] A(:,3) = [60 ; 80] % insert a vector in the 3rd column

oltre 10 anni fa | 0

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How to generate Combination of special sets and subsets
This is called a circulant matrix. I have written a function that can be found in the File Exchange: A = [100 125 300 400] ...

oltre 10 anni fa | 0

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How to generate Combination of special sets and subsets
Found both of them :D <</matlabcentral/answers/uploaded_files/52544/found.png>>

oltre 10 anni fa | 0

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Deleting rows until a certain point
Perhaps this example can help you: % some data t = 1:15 ; v = [0 0 0 0 1 2 4 8 4 2 0 -2 -4 -8 -4] % find the point...

oltre 10 anni fa | 1

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Average over a cycle
First, do not name your products like this. Use the cell array directly with indexing, or convert to a struct. A solution to ...

oltre 10 anni fa | 1

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Matrix dimensions to create for loop?
You can use a for-loop: rr = rand(6,200) ; [nr,nc] = size(rr) ; X = eye(nr,1) ; % take it out of the loop V =...

oltre 10 anni fa | 0

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Extract individual numbers from a list
Do not do this! It is the contents of a variable that should change, not the name of the variable itself. An example in real ...

oltre 10 anni fa | 0

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How to attribute numeric values to a function?
Why store the result in a different variable V = input('Enter a number: ') ; switch (V) case 1 out = sin(2) ; ...

oltre 10 anni fa | 1

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How to multiply elements of a cell array with each other?
You should be aware that matrix multiplication is not commutative (A*B does not equal B*A, in general). A for-loop is the best o...

oltre 10 anni fa | 1

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From this matrix pattern, how to create a matrix iterations automatically? Thanks guys
V = [-3 1 0 0 0] M = toeplitz(V,V)

oltre 10 anni fa | 0

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Sampling from distribution summing up to some value
The arguments of GAMRND are the shape parameters of the distribution. Change them and you will change the distribution from whic...

oltre 10 anni fa | 1

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'Grid Vectors not strictly monotonic increasing'
This happens when values in X are not unique X = [1 2 3 3 4 5] Y = [10 20 28 32 40 50] interp1(X,Y, 3.5) A workaro...

oltre 10 anni fa | 1

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How to name/number each line graph in Y axis, instead of the 1-9 numbers?
use the function *text* text(X, Y, STR) will place the string STR at the location (X,Y) on the current axes.

oltre 10 anni fa | 0

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Average value of an annulus in a square matrix
R = 3 ; M = magic(2*R+1) ; dr = 1 ; [ri,ci] = ndgrid(1:(2*R+1)) D = hypot(ri-R-1,ci-R-1) for k=dr:dr:R ...

oltre 10 anni fa | 0

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Can someone help me with my if statements in my function?
I quickly see three issues: # a is always positive so b can never be both positive (>=2*a) and negative (<= 0). # for A = s...

oltre 10 anni fa | 0

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How can I export a matrix as a CSV file?
You and your computer disagree on what to use as a decimal symbol: a . or a , I strongly recommend you to use a decimal point...

oltre 10 anni fa | 2

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Ttest for one row of matrix
A simple for-loop would do: Nrows = size(DATA,1) h = zeros(Nrows,1) for k = 1:Nrows h(k) = ttest(DATA(k,:)) e...

oltre 10 anni fa | 0

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Computing the difference vector for all possible pairs of columns in a matrix?
Take a look at NCHOOSEK A = [1 2 3 4 ; 10 8 6 4 ; 11 23 35 47] ColIdx = nchoosek(1:size(A,2),2) B = A(:,ColIdx(:,1)) ...

oltre 10 anni fa | 0

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genvarname({'A', 'A', 'A', 'A'});
GENVARNAME will become obsolete pretty soon. This is more flexible: C = arrayfun(@(k) sprintf('Sensor%02d',k), 7:13, 'un',0...

oltre 10 anni fa | 0

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genvarname({'A', 'A', 'A', 'A'});
Why do you want to do this? It is generally a very bad programming idea to generate variable names like this. *"It is the con...

oltre 10 anni fa | 0

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i have an array, named ersum which have 20000 columns (1*20000). i need to find minimum value of first 50 columns. next minimum value of next 50 columns and so on upto last 50 in that 20000 columns. please send suitable code. thank you sir.
you can RESHAPE your vector into a 50-by-N array and then use MIN which can operate on all columns at once. help reshape ...

oltre 10 anni fa | 1

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How to do "the black top-hat transformation"
<http://uk.mathworks.com/help/images/ref/imtophat.html>

oltre 10 anni fa | 0

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