# Iain

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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 ...

meer dan 3 jaar ago | 1 answer | 0

### 1

answerStoring 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 ...

meer dan 8 jaar ago | 0

| accepted

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...

meer dan 8 jaar ago | 0

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.

meer dan 8 jaar ago | 0

| accepted

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 ...

meer dan 8 jaar ago | 0

How to get a single line on an image?

Oh, I just found the perfect answer. imline.

meer dan 8 jaar 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...

meer dan 8 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan 9 jaar ago | 0 answers | 0

### 0

answersPlot 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.. ...

meer dan 9 jaar ago | 0

| accepted

Using a user defined fucntion with blockproc

What does your "myfunction" function output? It looks like it's not producing any output.

meer dan 9 jaar ago | 0

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...

meer dan 9 jaar ago | 1

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...

bijna 10 jaar ago | 0

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 ...

bijna 10 jaar ago | 1

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...

bijna 10 jaar ago | 0

| accepted

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.

bijna 10 jaar ago | 1

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...

bijna 10 jaar ago | 0

Problemas with "sum" function

It is a tolerancing problem. By default, matlab does sums to the 15thish significant figure. Small numbers being added to...

bijna 10 jaar ago | 0

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...

bijna 10 jaar ago | 0

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...

bijna 10 jaar ago | 0

Reading .dat files into Matlab

Theres a few "rotates". flipud, fliplr, transpose/permute, imrotate...

bijna 10 jaar ago | 0

| accepted

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....

bijna 10 jaar ago | 1

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 ...

bijna 10 jaar ago | 0

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 ...

bijna 10 jaar ago | 2

| accepted

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...

bijna 10 jaar ago | 2

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) ==...

bijna 10 jaar ago | 0

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...

ongeveer 10 jaar 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...

ongeveer 10 jaar ago | 0 answers | 0

### 0

answersPlotting 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(...

ongeveer 10 jaar ago | 0

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...

ongeveer 10 jaar ago | 0