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**Content Feed**

How to get data from web?

URLREAD expects US-style usage of commas and stops in numbers. So in a number like 150,228.17 it will ignore the comma and retur...

5 years ago | 0

| accepted

Is it legal to publish the source code of Matlab's toolbox functions?

In general, just keep in mind that it’s not okay to take code from MathWorks products and give it away, whether through MATLAB A...

6 years ago | 11

| accepted

Question

How to import Excel data from a spreadsheet with cross-file references?

I have an Excel spreadsheet, call it Spreadsheet A, that I want to read into MATLAB. The Import Tool works well for this. Exc...

7 years ago | 2 answers | 0

### 2

answersregular expressions resources and regular expression problem

Another way to get good at regular expressions is to practice on Cody with <http://www.mathworks.com/matlabcentral/cody/?term=ta...

9 years ago | 1

Single title spanning a nxn subplot

You might want to try <http://www.mathworks.com/matlabcentral/fileexchange/7772-suplabel suplabel> from the File Exchange.

10 years ago | 0

| accepted

Function to format number as currency?

Using SPRINTF is the way to go, but getting the commas right is tricky. I turned this into a question for Cody to see what folks...

11 years ago | 1

How to separate this DNA sequence?

Here's a simple way to chunk your DNA up into codons. Then you can just pull the rows off to get each triplet. >> sequence =...

11 years ago | 2

| accepted

Miller Cylindrical Projection

One option is to use the <http://www.mathworks.com/products/mapping/ Mapping Toolbox>, which has a function to do exactly this p...

11 years ago | 0

How do I get a parameter to resolve when following the '%%' section header definer while using 'publish' command?

Publishing using cell mode markup doesn't permit passing parameters in the way you describe. Section heads can't contain paramet...

11 years ago | 0

getting the variable size value

To find the size, use <http://www.mathworks.com/help/matlab/ref/size.html |size|>. [m,n] = size(X) m = size(X,dim) So t...

11 years ago | 0

Colouring stacked bar chart

Try Brandon Levey's <http://www.mathworks.com/matlabcentral/fileexchange/24021-hatch-fill-patterns-plus-color-invert Hatch fill ...

12 years ago | 0

Passing data between two different GUI windows

Here's a tricky non-Guide way to do it. Change the data in the text box and press return to plot the data in figure 2. % Ma...

12 years ago | 0

Can one suppress the display of dataset objects triggered by mouseover (datatips)?

Mike's blog may be of service here: <http://blogs.mathworks.com/desktop/2008/01/28/exploring-your-data-with-datatips/ Exploring ...

12 years ago | 0

Decreasing scale on graphs

Is this what you're looking for? plot(Times,TDCall) set(gca,'XDir','reverse')

12 years ago | 0

How do I read Text from HTML file ?

Try something like this: url = 'http://www.example.com/'; html = urlread(url); % Use regular expressions to remove undesi...

12 years ago | 10

| accepted

How to implement a neural network feedforward backpropagation network?

A quick Google search turned up this MATLAB-based approach: <http://alumni.media.mit.edu/~faaborg/research/cornell/hci_neuralnet...

12 years ago | 0

Question

How do I write a good question for MATLAB Answers?

I want to get fast and accurate help with my question. What information should I include in the question? How should I phras...

12 years ago | 5 answers | 12

### 5

answersShortest Path

<http://www.mathworks.com/matlabcentral/fileexchange/?dir=desc&sort=downloads&term=authorid:90537 Joseph Kirk> has some files on...

12 years ago | 0

Simple example which explains contour plotting

Try these pages in the documentation for <http://www.mathworks.com/help/techdoc/creating_plots/f10-2524.html contour>.

12 years ago | 0

Can we "Watch" Answers?

Take a look at Randy's answer to this question: <http://www.mathworks.com/matlabcentral/answers/233-does-matlab-answers-provide-...

12 years ago | 2

Eigenvector calculation

When I run the eig command (see help here: <http://www.mathworks.com/help/matlab/ref/eig.html eig>) I don't get any complex eige...

12 years ago | 0

| accepted

How do I remove the empty cells from a vector of cells?

Here's one way to do it. strs = {'one','','two','three','','','four',''}; empties = find(cellfun(@isempty,strs)); % ...

12 years ago | 3

Question

How do I remove the empty cells from a vector of cells?

I have a vector of cells which contain strings. Some of the cells in the vector are empty. I want to remove the empty cells from...

12 years ago | 5 answers | 7

### 5

answersHow do I cut H and E planes from a 3D plot of an antenna radiation pattern?

You might find Eric Ludlam's <http://www.mathworks.com/matlabcentral/fileexchange/764-sliceomatic Sliceomatic> file (from the Fi...

12 years ago | 1

How do I simplify a symbolic expression into numeric output?

It looks like you've got a symbolic expression. You can substitute real numeric values for x1 and x2 like this: % Defin...

12 years ago | 6

Question

Why does 1 - 2/3 - 1/3 not equal zero?

Try this: >> 1 - 2/3 - 1/3 MATLAB gets the wrong answer: 5.5511e-017

12 years ago | 4 answers | 8

### 4

answersHow do I turn off the grid in a polar plot?

It's a shame that it's not easier to do this, but here is a Solution that explains how to do it: <http://www.mathworks.com/sup...

12 years ago | 2

| accepted

Question

How do I turn off the grid in a polar plot?

For a normal MATLAB plot, I can turn the grid off and on with the |grid| command. x = 1:10; plot(x,sin(x)) grid on ...

12 years ago | 3 answers | 2

### 3

answersHow to extract leading non-zero digit?

You'll probably need to do some kind of textual manipulation. Here's one way to do it. function y = leadingDigit(x) s = s...

12 years ago | 4