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Les Beckham


Last seen: 4 dagen ago
93 total contributions since 2013

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Answered
How can one extract a column based on a value of another column?
>> A = [ 0 1; 1 0; 0 2]; >> A_0 = A(A(:,1)==0,2) A_0 = 1 2 >> A_1 = A(A(:,1)==1,2) A_1 = 0

3 maanden ago | 0

Answered
How to reduce decimal point in .dat file?
For your two alternative ways of saving this data into a text file, try the following two options. Please read the documentatio...

3 maanden ago | 0

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Answered
Hex to binary character array
This string is way too long to be converted to a decimal (or binary) number directly. It is actually 100 hex digits long (not 1...

4 maanden ago | 1

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Answered
using fget1 to read text file. Need help sorting data
The link that Walter provided looks promising. If you wish to pursue the processing on your own, here is a script that will rea...

4 maanden ago | 1

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Answered
What is wrong with this code?
If you are trying to plot the step and impulse responses of your transfer function you need to call step() and impulse() as func...

4 maanden ago | 0

Answered
How to have a string change based on user input
I've not tried accessing this data source or running your code, but I'm pretty sure that you need to change the following lines ...

4 maanden ago | 1

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Answered
What goes before this?
You can change your 'Stuff =' line to the following: Stuff = sprintf('%s %s is the %d day of the year.', Month,Date,N); Or, yo...

4 maanden ago | 0

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Answered
Changing amount of decimals in between loops
Just index into the vector that you created that specifies the number of places to which you wish to round for that iteration in...

4 maanden ago | 0

Answered
How can I scope using degrees insted of seconds?
The Simulink Scope block always uses simulation time as the x axis. If you wish to plot two simulation signals against each oth...

5 maanden ago | 1

Answered
"Colon operands must be all the same type, or mixed with real scalar doubles" error I'm trying to run excel file into Matlab function
Well there are several things wrong with this code. You can't use size() to extract things from an array. Replace frq= size(Si...

6 maanden ago | 0

Answered
How to plot phase plane only using trajectory equation?
Try something like this: c1 = 1; % replace with your desired constants c2 = -1; t=linspace(0, 10, 500); % adjust for your ...

6 maanden ago | 0

Answered
Sum the digits of a number?
I know it sounds too easy to be true but this manipulation is actually the same as modulo 9. No loops or string conversions need...

6 maanden ago | 2

Answered
How to find a unexpected high value and turn it to zero?
Here is a way to do this without a loop (using logical indexing) A = [2 3 4 2;5 6 7 3;8 9 0 6; 5 6 1 80;2 3 8 5;3 5 13 4] idx ...

6 maanden ago | 0

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Answered
How to block out code in Live Script
%{ a = 1; b = 2; %} c = 3;

6 maanden ago | 0

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Answered
How to include a vertical line at the sample when instant of landing
When I run your code, I don't get the error you cite on line 54. That seems to work fine. The only issue I found was when dete...

7 maanden ago | 0

Answered
I used to be able to see "Command Window" and "Command History" at the same time, now I must switch back and forth?
If you bring the Command History to the top you can grab the top edge of that window (where the title 'Command History' is) and ...

7 maanden ago | 0

Answered
how to print a table
This should be close to what you want. However, I have used the logical not, and, and or functions which appear to be diffferen...

7 maanden ago | 0

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Answered
Run a code for 100 years
I don't think the results are going to be very interesting but you could do what you are asking as follows: ro=1.49e11; ...

7 maanden ago | 0

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Answered
Using Inequality in a For loop
Walter has correctly shown how to express mutiple inequality conditions in Matlab (you must include the & (and) operator). Howe...

7 maanden ago | 1

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Answered
how to fill between 2 graphs
What do you mean by "fill the gap"? Do you want to connect the start and end points so that this becomes a closed curve? If so...

7 maanden ago | 0

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Answered
Store matrices under different variable names within a loop?
Make A a 4x4x4 three-dimensional matrix instead of creating multiple 4x4 matrices: mat = randi([0, 9], [4,16]) A = zeros(4,4,4...

7 maanden ago | 2

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Answered
Fill command issue for time series
Based on your sample data, you need to make a simple change to your code. Since your vectors are columns, you need to concatena...

7 maanden ago | 1

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Answered
Creating an array with exprnd numbers
Try this: A = zeros(100, 2); mu = 5; % or whatever you want for the mean of the distribution A(:,1) = exprnd(mu, size(A(:,1))...

7 maanden ago | 0

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Answered
when a save figure , the numbers appear in the name of the png with e+0X
Change your format spec to '/Figures/Distance_%d@%.3f.png' You might want to read up on the documentation for this: https://w...

7 maanden ago | 1

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Answered
How to get a variable value in the gain block. This variable value is defined in a Matlab function block.
To do this, I would use a Multiply block instead of a gain block. Make x an output from your Matlab function block. Connect th...

7 maanden ago | 0

Answered
How to quickly find the first non-zero element without iterations in all columns in a sparse matrix?
Try this. In my test with a 1000x1000 random sparse 0 or 1 matrix (A = sparse(randi([0 1], 1000, 1000));) it is about 4 times f...

8 maanden ago | 0

Answered
can some xxplain what the following program does? Thank youuuu!: peso=5000; while (peso > 0) disp (‘I order another coffee’); dollar = dollar – 250; end disp (‘I finished drinking
Per Stephens comment, I'm repeating my comment as an answer (with some additions). This script does pretty much nothing other t...

8 maanden ago | 1

Answered
How can i discretize a signal within simulink?
Look at the ZOH (https://www.mathworks.com/help/simulink/slref/zeroorderhold.html) and Unit Delay (https://www.mathworks.com/hel...

9 maanden ago | 0

Answered
How do I find maximum value of n so that 2^n is less than a value (ex, 500?)
I think you may be looking for log2. Documentation available here: https://www.mathworks.com/help/matlab/ref/log2.html

9 maanden ago | 0

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