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Les Beckham


Last seen: Today |  Active since 2013

Followers: 2   Following: 0

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Many years developing flight control algorithms and software

Programming Languages:
C++, C, C#, MATLAB, Assembly

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Answered
remove non-unique columns even if the sign has changed
Perhaps this? load newca.mat [~, icol, ~] = unique(abs(newca1).', 'rows', 'stable') mlag = newca1(:,icol)

22 dagar ago | 0

| accepted

Answered
Stoping / breaking ginput (or ginput(n)) before entrering any value / clicking any single time
Ctrl-C will abort ginput (though it does throw an error).

26 dagar ago | 0

Answered
Why trapz is giving me negative area?
I get a positive value for the area. load power.mat load frequency.mat plot(freq, power) grid on area = trapz(freq, power) ...

26 dagar ago | 0

Answered
how to have a matlab script give you a choice to automatically open other scripts
That seems like a questionable workflow. Nevertheless, this should get you started. % StartingScript.m response = questdlg('O...

ungefär en månad ago | 0

Answered
I need to correct the script for coloring map
You need to reexamine the logic you are using to determine the masks. All three masks are all zero, thus no coloring. % clc; ...

ungefär en månad ago | 0

Answered
2D matrix resize or interpolation
For Q1, I would suggest imresize. Can you clarify what you mean by "offset x,y values" in Q2?

ungefär 2 månader ago | 0

Answered
How to rotate rectangular with a an angle?
Perhaps this is what you are trying to do. The hgtransform and makehgtransform functions are designed for transforming graphics...

ungefär 2 månader ago | 1

Answered
plot the shielding effectiveness
You haven't really asked a question. If you just want a plot of the data pasted into your "question", here you go. data = ... ...

2 månader ago | 0

Answered
How to force a (small) gap on axis
You can use the axis command to specify some padding around the data plot(-1:0.1:1) grid on plot(-1:0.1:1) axis padded gr...

2 månader ago | 0

Answered
How to load a function to use in Matlab? In this case the DiskMargin function.
diskmargin is a function in the Robust Control Toolbox. You will need to install that toolbox. Also, that function was added t...

3 månader ago | 0

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Answered
code to tell mlx or m files
If you want your function to know if it was called from a .m file or a .mlx file you can do that using dbstack. However, I'm no...

3 månader ago | 1

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Answered
Read and process a Fortran90 binary file
In light of the additional variable size information and sample file provided by the OP, and the information from Walter about F...

3 månader ago | 0

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Answered
Read and process a Fortran90 binary file
It would help to have a sample file to experiment with. Nevertheless, assuming that the write call that you have shown is the o...

3 månader ago | 0

Answered
Ramp function with steady-state
Maybe something like this using lsim? t = 0:0.01:30; u = 3*t; u(u > 30) = 30; sys = tf([1 0], [1 1]); % <<< s / (s+1) -- rep...

4 månader ago | 0

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Answered
How to adjust the decimal place in fprintf statement
Note that the Matlab function for printing to the command window is fprintf, not printf. Note also that it doesn't make sense t...

4 månader ago | 0

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Answered
Kalman Filter Velocity data looking too similar to position data
It appears that you aren't differentiating the position to get the velocity, you are just multiplying it by dt. Thus the two pl...

5 månader ago | 0

Answered
anyone know how to open .dmi file
There are two issues. One is that your fread command is converting the int8 data to doubles when reading. The other is that th...

5 månader ago | 0

Answered
How can I insert a variable into a plot legend, with a special character following the variable?
plot(magic(4)) M = 10.5; %<<< made up value for variable M legend('', '', '', sprintf('Gradient: %.1f\\circ/mm', M))

5 månader ago | 0

Answered
Need to get matlab to display the continuous time transfer function
Please explain exactly what the problem is. You need the Control System toolbox, not the "command tool box", whatever that is. ...

6 månader ago | 0

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Answered
How can I write data to a text file in a user-specified location that is already populated with a standard header?
Probably the easiest way to do this is to create a text file containing your header text and then call system() to concatenate t...

6 månader ago | 0

Answered
how to resolve fprintf error when dealing with whole numbers?
a = [16.0541, 17]; for i = 1:2 fprintf('\n%s','"values":{'); fprintf('\n%s','"min":'); fprintf('%f',a(i)); % <<...

6 månader ago | 1

Answered
Unable to create a exponential graph
I guess I don't really see what the problem is. Follow your own comments and adjust a and b to match the expected curve. Can y...

6 månader ago | 0

Answered
Why is it when I am adding a number to array, the single number overrides array
lownutant is so small (~10^207) that can't be represented in floating point after adding 1 to it. Floating point resolution for...

6 månader ago | 3

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Answered
How to datasample exponential data without losing the exponential decay?
I guess I don't understand what problem you are seeing. resample seems to work just fine here (see below). I assumed that your...

6 månader ago | 2

Answered
Add a title to a group of 4 subplots centred at the top
I would suggest using tiledlayout instead of subplot. Then you attach the title to the tiledlayout rather than any of the indiv...

6 månader ago | 0

Answered
Help Needed: Fixing Indexing Error in MATLAB Random Name Generator Code
You need to use curly braces instead of parentheses to extract the contents of the cell array of char vectors for the names. % ...

7 månader ago | 0

Answered
How to create Simulink model with multiple versions?
I would suggest reading about Variant Subsystems. They are intended for doing exactly that.

7 månader ago | 0

| accepted

Answered
Function is throwing error when calling it in different script
You have a non-comment line before the function definition starts. Thus, Matlab thinks that this is a script. Make the first l...

8 månader ago | 0

Answered
The farthest yticklabels do not appear when using ax.YAxisLocation = 'origin'
I'm not sure this is much more satisfactory than your approach, but it appears to at least work and would adapt to different y a...

8 månader ago | 1

| accepted

Answered
I would like to quantize a Sinewave correctly, and identify where the issues is with my code
You were so close! But bitshift shifts left by the specified number of bits. Use a minus sign to shift right. % Sampling Freq...

8 månader ago | 1

| accepted

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