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POOctave: Calling a function in its function file
 

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  1. POOctave: Calling a function in its function file
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    <p>Is calling a function in the file functions definition file possible? I am pretty curious about it. Thanks for your answers.</p> <pre><code>%It would prove efficient to write a function since we are going %to do the same thing twice. function fleas(N); clear totalflea; %The below vector is for plotting purposes only. Nvector = linspace(0, N, N + 1); %Define the flea vector as follows: %The value 0 correspond to a fleas residing on dog B %(Burnside);thus initially all fleas are on Burnside. totalflea(1) = 0; %Since initially we do not have any fleas on Burnside. fv = zeros(1,50); for n = 1 : N; k = randi(50); %The above code generates a random integer between 1 and 50. %The code has been implemented in Octave 3.4. switch fv(k) case 0 fv(k) = 1; case 1 fv(k) = 0; end %The above statement changes the values of fv(k) depending %on its initial value. The possible values are 0 or 1. totalflea(n + 1) = sum(fv); endfor %The following lines are there to depict two standard deviations away %from the mean value of 25. The standard deviation of a discrete binomial %variable is found in "Introduction to Probability" by Bertsekas and %Tsitsiklis. The 2 SD barrier is as follows: sdp = ones(1, N + 1)*(25 + 2*sqrt(50)/2); sdm = ones(1, N + 1)*(25 - 2*sqrt(50)/2); plot (Nvector, totalflea, Nvector, sdp , "1", Nvector, sdm, "1"); % "1" is supplied as an optional argument to determine the color %of the graph. xlabel('Time Steps') ylabel('Fleas on Anik') xrange endfunction </code></pre> <p>This works fine, yet when I append the line fleas(500) for example at the end of the file I get a parse error. When I add it at the beginning of the file I get the following error:</p> <pre><code>warning: function 'fleas' defined within script file '/home/ongun/Desktop/Dropbox/Computational Physics/Codes/fleas.m' error: invalid use of script /home/ongun/Desktop/Dropbox/Computational Physics/Codes/fleas.m in index expression </code></pre>
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