# Sara

### Los Alamos National Laboratory

Last seen: 4 mois il y a Actif depuis 2014

Followers: 0   Following: 0

Professional Interests: Atmospheric science, biosurveillance, HAZMAT modeling

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Convert cell of strings to numbers
If your cell array includes only numbers, you can use cell2mat

plus de 9 ans il y a | 0

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how to write general code for generating points
You can write the for loop in the following way: for I=1:m x1 = LB(I)+(UB(I)-LB(I))*rand(500,1); X = [X x1];...

plus de 9 ans il y a | 0

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Speeding up matrix comparison within a loop (logical indexing???)
Without having any data to test it, I'd say you could do: for i=2:12 x = squeeze(imlab50(i,:,:,:)); outpu...

plus de 9 ans il y a | 0

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Doubt regarding ode45 plotting
ode45(@(t,x)DFG789(t,x,var_1),..... Then the function becomes: function dB = DFG789(Z1,B,var_1)

plus de 9 ans il y a | 0

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Storing data from for loop
Try replacing FileName(s) with FileName{s}

plus de 9 ans il y a | 0

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Recursive concatenation of cell arrays
Events_ext2 = Events_ext; i = 0; while i < numel(Events_ext2)-1 i = i + 1; if(Events_ext2{i+1}(1)-Events_e...

plus de 9 ans il y a | 0

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Plot single vector from 3D array
Try this: plot(squeeze(MyVar(1,1,:)))

plus de 9 ans il y a | 2

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horizontal lines in candle chart
x = [0 60]; ylev = [0 23.6 38.2]; % add all levels you want hold on; for i = 1:numel(ylev) plot(x,[ylev(i) ylev(...

plus de 9 ans il y a | 2

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Position of a data at Matrix
Given the matrix A [i,j] = find(A == max(max(A))

plus de 9 ans il y a | 1

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Writing Character Strings from Text file to CSV, Error using fprintf Function is not defined for 'cell' inputs
Use C = C{1} after the textscan command. But, why not using csvwrite later?

plus de 9 ans il y a | 0

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Displaying a saved value in plot's textbox.
Replace: 'Area_s_s = ' with ['Area_s_s = ',num2str(a),'kJm^-3'] in the annotation. It's also better if you use ...

plus de 9 ans il y a | 0

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save results in new struct
Here is how your code will look like: if true empty_max.cost=[] mymax=repmat(empty_max,[3,3,2,numel(A)]) for...

plus de 9 ans il y a | 0

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How to split columns up into different numbers of figures?
% This values are here just to show an example n = 7; % num A = zeros(10,n); for i = 1:n A(:,i) = i; end ...

plus de 9 ans il y a | 0

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Importing different sheets of an Excel Data
You can retrieve the name of the sheets in an excel file with xlsfinfo

plus de 9 ans il y a | 0

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plotting 2 vectors of different
with hold on. figure plot(x1) hold on plot(x2)

plus de 9 ans il y a | 1

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how use GUI outputs (variables) in another .m file?
If you just want to calc the result once you've inputted the values, you can do: In function pushbutton1_Calculate_Callback(h...

plus de 9 ans il y a | 0

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Change positions of specific compoent based on conditions
Use the handles variable to carry around your values. In the opening function, do: handles.origin = ..... handles.prev =...

plus de 9 ans il y a | 0

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hello, i am new on matlab and i keep getting this msg : matrix dimensions must agree!! any help please? its line 28
Replace lines with this dV = kconst*dq ./ ( ( (kx0-x).^2+(ky0-y).^2+(kz0-z).^2 ).^0.5 ); V(ki)= sum(sum(dV)); % ca...

plus de 9 ans il y a | 0

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Help needed with matrix in for-loop and output of matrix
With x,y column vectors: A = [x,y]; B = sortrows(A,1); unique_x = unique(B(:,1)); new_matrix = zeros(numel(unique_x),2...

plus de 9 ans il y a | 3

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Question

Zoom behavior in figure embedded in GUI
I have built a GUI that contains some axes and created a pushbutton to let the user zoom in and out of the image. I can't figure...

plus de 9 ans il y a | 2 réponses | 0

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Mirror of countourf on X, Y axis
Look at the following example. If x and y start from 0, you can repeat the contour command 4 times. otherwise, you need to trans...

presque 10 ans il y a | 0

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operands to the and && operators must be convertible to logical scalar
In find you need to use & not &&

presque 10 ans il y a | 0

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How can I save a string from a uicontrol edit box into a a part of my structure ?
You have to put your string into the handles structure as handles.s_Name = s_Name; and then save it with: guidata...

presque 10 ans il y a | 0

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Pass Data between Gui`s
In GUI_1, store everything you need to share in handles, and call GUI_2 as: GUI_2(handles) This may go into a pushbutton...

presque 10 ans il y a | 5

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how to plot grid mapping for robot path planning ?
Adapt to your case the following script. I've colored the rectangles with facecolor, but you can eliminate that if you want just...

presque 10 ans il y a | 0

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Modifying files and merge files
fid1 = fopen('filewithdates','r'); fid2 = fopen('filewithhours','r'); fid3 = fopen('output.txt','w'); w...

presque 10 ans il y a | 1

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how to write this data in text file?
Try this: sets = rand(9,5) for i = 1:9 fprintf(fid,'%.2f ',sets(i,:) ); fprintf(fid,'\n'); end

presque 10 ans il y a | 0

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How can I generate a grid schematic in MATLAB?
Take a look at the code. nrow and ncol will be your adjustable inputs. Now the code wait for the user to click on the image (gin...

presque 10 ans il y a | 2

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GUIDE outputting a .txt file
Look up fopen, fprintf, and fclose. Your code will be something like this: fid = fopen('filename.txt','w'); fprintf(fid,...

presque 10 ans il y a | 0

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How do I access files not added to my matlab path?
You need to provide to imread not just the file name but the full path. You can use fullfile to build it.

presque 10 ans il y a | 0