# Sara

### Los Alamos National Laboratory

Professional Interests: Atmospheric science, biosurveillance, HAZMAT modeling

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**Content Feed**

Convert cell of strings to numbers

If your cell array includes only numbers, you can use cell2mat

ungefär 9 år ago | 0

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];...

ungefär 9 år ago | 0

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...

ungefär 9 år ago | 0

Doubt regarding ode45 plotting

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

ungefär 9 år ago | 0

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...

ungefär 9 år ago | 0

| accepted

Plot single vector from 3D array

Try this: plot(squeeze(MyVar(1,1,:)))

ungefär 9 år ago | 2

| accepted

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(...

ungefär 9 år ago | 2

| accepted

Position of a data at Matrix

Given the matrix A [i,j] = find(A == max(max(A))

ungefär 9 år ago | 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?

ungefär 9 år ago | 0

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 ...

ungefär 9 år ago | 0

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...

ungefär 9 år ago | 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 ...

ungefär 9 år ago | 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

ungefär 9 år ago | 0

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plotting 2 vectors of different

with hold on. figure plot(x1) hold on plot(x2)

mer än 9 år ago | 1

| accepted

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...

mer än 9 år ago | 0

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 =...

mer än 9 år ago | 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...

mer än 9 år ago | 0

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...

mer än 9 år ago | 3

| accepted

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...

mer än 9 år ago | 2 answers | 0

### 2

answersMirror 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...

mer än 9 år ago | 0

| accepted

operands to the and && operators must be convertible to logical scalar

In find you need to use & not &&

mer än 9 år ago | 0

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...

mer än 9 år ago | 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...

mer än 9 år ago | 5

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...

mer än 9 år ago | 0

Modifying files and merge files

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

mer än 9 år ago | 1

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

mer än 9 år ago | 0

| accepted

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...

mer än 9 år ago | 2

| accepted

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,...

mer än 9 år ago | 0

| accepted

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.

mer än 9 år ago | 0