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How can i plot a colormap (2d)
You can use pcolor

mehr als 11 Jahre vor | 0

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add a column between tow columns
Given the array A and the column vector x, let n be the column after which you want to add x into A: ncol = size(A,2); c...

mehr als 11 Jahre vor | 2

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Problem getting polygons for NY state?
The second part of the code didn't work for me, so I replaced it with this and I get a nice contour: k = struct2cell(states...

mehr als 11 Jahre vor | 1

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Changing save name for text file
Use: S=strcat(cd,'\Results\',[answer,'.txt']);

mehr als 11 Jahre vor | 0

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how to store value from loop
Define a cell array before the loop: x_error = cell(50,50); % Adjust num elements according to your loops and then do: ...

mehr als 11 Jahre vor | 0

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Not all Subplots are plotting
you have for j = 1:a with a = 0.1, i.e. it never enters the loop

mehr als 11 Jahre vor | 0

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Integration of a curve
You can use trapz

mehr als 11 Jahre vor | 0

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Contouring a mesh and assigning magnitude arrows in Matlab
use quiver(x(1:dx:end),y(1:dy:end),u(1:dy:end,1:dx:end),v(1:dy:end,1:dx:end)) where dx and dy are how many elements to ...

mehr als 11 Jahre vor | 3

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determine loop which include cellarrays
z=[1 2 3;4 5 6;7 8 9]; w = cell(3,1); n = cell(3,1); for i=1:3 w{i}=z(:,i); n{i}=w{i}(1,:); end

mehr als 11 Jahre vor | 0

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How data or numbers from excel tranfer to matlab workspace and communicate with the matlab GUI?
Don't do it that way. Read the excel file in the opening function of the GUI or where appropriate (e.g., when you press on a pus...

mehr als 11 Jahre vor | 0

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add a number to the legend
legend(['Sandwich panel(',num2str(put_number_here),')']) or you could use sprintf.

mehr als 11 Jahre vor | 2

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Error: In an assignment A(I) = B, the number of elements in B and I must be the same
If you do not need to store Num0 and have it after the for loop ends, you could just do Num0 = find.... especially beca...

mehr als 11 Jahre vor | 0

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for look and store in a 2x2 matrix
for i = 122:305 assignin('base',['A',num2str(i)],DamithCount(S1(i,:),S1(i+1,:))); end Look up assignin to...

mehr als 11 Jahre vor | 0

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how to display string's edit box and string's popup when i go back from GUI2 to GUI1
You can write a function that sets the values in GUI1 when it is called from GUI2, i.e. something that does: set(handles.my...

mehr als 11 Jahre vor | 0

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help error: Reference to a cleared variable data.
remove clear all otherwise the input parameters get cleared before doing any calculations.

fast 12 Jahre vor | 7

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Help with exponential returning zeroes
B = exp(A)

fast 12 Jahre vor | 0

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Change the axis tick
set(gca,'xtick',1:1:10) replace 10 with your larger value

fast 12 Jahre vor | 1

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How can I use matlab to write data from a textfile and into an Excel sheet?
Once you have the data in matlab, use xlswrite. If you have 3 cols and n rows, where n can change: xlswrite('filename.xlsx'...

fast 12 Jahre vor | 0

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Identidying next "n" elements of an array
To find just the first element that meets your condition, you can do: Inds = find(h<.90 & h>0.89,1); then: h(Inds+1...

fast 12 Jahre vor | 0

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ODE45 how do I interpret this code...
When you call an ode solver, the values of y passed to your function Y change in time and depend on numerical method, in this ca...

fast 12 Jahre vor | 0

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trying to create a legend that explains scatter plot marker type
You can try changing the order in which you plot data as: hold on h11 = scatter(MOCmaxCumEmFAST, minMOCFAST,size...

fast 12 Jahre vor | 0

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loading items from listbox1 to listbox2
Add this: temp = get(handles.listbox2,'String'); temp{end+1} = filename; set(handles.listbox2,'String',temp)

fast 12 Jahre vor | 0

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link between edit text 1 and 2 when puch button has click
in the edit1 callback save the variable inputted by the user in a variable: handles.myvar = get(handles.edit1,'string'); ...

fast 12 Jahre vor | 0

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how to stop from running a program whenever any of the element become zero or gets negative?
If you want to exit the loop, you can do: if(ismember(0,B)) break end If there is code after the loop, that part...

fast 12 Jahre vor | 1

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How do I extract a row of data from a cell array?
If you know which row you want to extract, you can do: b = a(row,:);

fast 12 Jahre vor | 0

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format the y tick labels
If you want to change the format of the y-axis: y = get(gca,'ytick'); yy = cell(numel(y),1); for i = 1:numel(y) ...

fast 12 Jahre vor | 0

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remove values of a matrix from another
If A and B are 1D arrays: for i = 1:numel(B) A(A==B(i)) = []; end

fast 12 Jahre vor | 0

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Search excel file for specific data and then copy adjacent columns in that range
I would read in the xls file with "xlsread" (the whole set of data). Then search the first column of the imported data with the ...

fast 12 Jahre vor | 0

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I need help with GUI
Define a variable that counts how many time the pushbutton has been pressed and set it to zero in the OpeningFcn as: handle...

fast 12 Jahre vor | 1

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Read excel data but keep formatting? Is this possible?
Use this form of xlsread, you'll find your variable into txt or raw: [num,txt,raw] = xlsread(___) From the help: [num,...

fast 12 Jahre vor | 0