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Sara


Los Alamos National Laboratory

Last seen: 30 days ago |  Active since 2014

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Professional Interests: Atmospheric science, biosurveillance, HAZMAT modeling

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

9 years ago | 0

Answered
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];...

10 years ago | 0

Answered
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...

10 years ago | 0

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

10 years ago | 0

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

10 years ago | 0

Answered
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...

10 years ago | 0

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

10 years ago | 2

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Answered
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(...

10 years ago | 2

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

10 years ago | 1

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Answered
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?

10 years ago | 0

Answered
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 ...

10 years ago | 0

Answered
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...

10 years ago | 0

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Answered
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 ...

10 years ago | 0

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

10 years ago | 0

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

10 years ago | 1

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Answered
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...

10 years ago | 0

Answered
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 =...

10 years ago | 0

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Answered
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...

10 years ago | 0

Answered
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...

10 years ago | 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...

10 years ago | 2 answers | 0

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answers

Answered
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...

10 years ago | 0

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

10 years ago | 0

Answered
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...

10 years ago | 0

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Answered
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...

10 years ago | 5

Answered
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...

10 years ago | 0

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

10 years ago | 1

Answered
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

10 years ago | 0

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Answered
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...

10 years ago | 2

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Answered
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,...

10 years ago | 0

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Answered
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.

10 years ago | 0

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