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# Iain

### MBDA UK Ltd

Last seen: nästan 2 år ago Active since 2012

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Question

How to determine how much RAM is available?
I'm currently working on a tool designed to read in files and do stuff to the files, and the likelihood that it will eventually ...

nästan 2 år ago | 1 answer | 0

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answer

Answered
Storing results from a nested for loop
Well theres two ways: 1. Write the results to file as they are generated. (xlswrite & xlsread would be your friends, and you ...

nästan 7 år ago | 0

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Answered
How to create a Executable (.exe) with MatLab 2013b ?
You need the compiler toolbox. The method I use is: mcc <scriptname> -m The Matlab compiler runtimes need to be installed...

nästan 7 år ago | 0

Answered
maclaurin series code problem
abs(ea(k+1))<es in your code, ea is a scalar, and you're trying to access the k+1th element, which is the error.

nästan 7 år ago | 0

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Answered
max and min complex number
Max is calculating the absolute value, and then taking the maximum value, despite being negative. Greater than is taking the ...

nästan 7 år ago | 0

Answered
How to get a single line on an image?
Oh, I just found the perfect answer. imline.

ungefär 7 år ago | 0

| accepted

Question

How to get a single line on an image?
I'm trying to make a little bit of image analysis software. I need to plot the intensity of pixels lying along a user selected l...

ungefär 7 år ago | 1 answer | 0

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answer

Question

Reading quicktime movies on windows
I am trying to do an assessment of some video capture hardware and a thermal imager. I am trying to establish methods of reading...

nästan 8 år ago | 0 answers | 0

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answers

Answered
Cycle For how can i??
for i = 2:numel(x) do stuff end

ungefär 8 år ago | 1

Answered
Plot in matlab, multiple plots in one figure.
x_for_z1 = matrix(matrix(:,3)==1,1); y_for_z1 = matrix(matrix(:,3)==1,2); plot(x_for_z1,y_for_z1,'r') hold on etc etc.. ...

ungefär 8 år ago | 0

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Answered
Using a user defined fucntion with blockproc
What does your "myfunction" function output? It looks like it's not producing any output.

ungefär 8 år ago | 0

Answered
Inf and NaN problem
Logarithms are your friends. Here's what I mean maths: log(UtiliteProba) = (UtiliteB(b,l)+UtiliteC(b,l))/T (values in the ra...

ungefär 8 år ago | 1

Answered
Vector initialization (randn) with loop 'for'
The time difference is due to what gets done in the loop. randn - This checks the number of inputs (0), generates a number a...

ungefär 8 år ago | 0

Answered
How to write the first line of a function?
The first line of a function should look something like this: function [a b c] = something(a, b, c) % 3 inputs, 3 outputs ...

ungefär 8 år ago | 1

Answered
Query about data types and whos
Size is working properly. It is telling you that there are TWELVE characters in the string 'flights_2011'. size(flights_2011...

ungefär 8 år ago | 0

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Answered
Stitching sub images to reconstruct full image
depending how you've done it.... BInew = permute(BI,[1 3 2]); BInew = reshape(BInew,16*size(BI,1),[]); ought to work.

ungefär 8 år ago | 1

Answered
Not so rhetorical question: Why the common practice of writing lines of code without white space?
When it comes to making code readable, scDSI (:, theta+1) = scRadius * [ cosd(theta); sind(theta); 0.0 ]; Is not as reada...

ungefär 8 år ago | 0

Answered
Problemas with "sum" function
It is a tolerancing problem. By default, matlab does sums to the 15thish significant figure. Small numbers being added to...

mer än 8 år ago | 0

Answered
Matlab Function Problem - Variable Storage
Ok, a FUNCTION is a thing like "sin", it accepts a (none/list of) input parameter(s). It outputs a (none/list of) output paramet...

mer än 8 år ago | 0

Answered
how to plot clearer angle yticklabels at whole fractions of 360° (and/or fractions of pi, for radians) in stead of decimal
You can change where the ticks go: set(axishandle,'YTick', [0 4 6 8 ...] ) You can change the labels as you like: set...

mer än 8 år ago | 0

Answered
Reading .dat files into Matlab
Theres a few "rotates". flipud, fliplr, transpose/permute, imrotate...

mer än 8 år ago | 0

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Answered
Specific numbers generation Simulink
Matlab code for it would be something like... : listofnumbers = [1 4 7 9]; weight = [1 2 3 4]; % weights, not frequencies....

mer än 8 år ago | 1

Answered
Force scientific notation in axes
Here's a really simple option. Change the units of the axes. Plot time, in, for example, hs, cs, ds, Ds, ms, ks ...

mer än 8 år ago | 0

Answered
Comparing two numbers by using IF in Matlab
The code is correct. The problem is that x - y is not precisely 0. The magnitude of the difference will be less than 1e-5 ...

mer än 8 år ago | 2

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Answered
I have a cellarray (100000000*2cell) ,how can I save the cell in excel more quickly ?
Here's a better idea. *Don't* save it to a text file. 100 million lines of text, of 40 bytes per line (more if nicely format...

mer än 8 år ago | 2

Answered
Is it possible to use element by element comparison between a single variable and individual matrix values?
Yes. Try these to see what makes sense for your little problem whatever it happens to be... logical_cmp_result = eye(3) ==...

mer än 8 år ago | 0

Answered
plot with different symbols
r1 = rand(1,1000); r2 = rand(1,1000); plot(1:1000,r1,'bx',1:1000,r2,'kx') Change the x to +, d, s, o for other symbols...

mer än 8 år ago | 0

Question

Setting priority of parallel tasks
I have a function, which to optimise it, I am going to have to split into two separate sequences of parallel processes (using pa...

mer än 8 år ago | 0 answers | 0

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answers

Answered
Plotting different sections of multiple arrays using a loop
Assuming your plot command is correct, all you need to do is modify it: plot(Time(1:length(data{k,1})),data{k,1}); plot(...

mer än 8 år ago | 0

Answered
Plotyy and giving each line its own color
It is possible. It might not be that good of an idea if it makes it hard to identify which line goes with which axis (using subp...

mer än 8 år ago | 0