Dear Expert this is the MATLAB program for the Detrended fluctuation analysis for a text. There is an error still at 'fluctuation = zeros(1,k); % corrected error here' when running the program on Matlab ONLINE I get the following:

Even though with the below explanation we are obtaining the same mistake as the previous version. Please can you give it another try and TEST IT IF IT WORKS I wanna Know if it is working your side Can you show me your graph how it will become please . I don't understand what to change here also . Please please can you give it a try till the graph of log is obtained. Thank you very much and sorry I can understand its a bit irritating. BUT FOR SURE WE NEED A SCALAR AT LINE 65 IF WE ARE USING THE ZEROS FUNCTION.IS THERE NO ALTERNATIVE TO IT PLEASE. do check the results before posting sir/Madam. Thank you

{EXPLANATION)

Regarding the error you mentioned, the problem seems to be with the line:

fluctuation = zeros(1,k);

Here, the size of the fluctuation array is being set to [1,k], which is causing the error. Since k is a scalar value, this should be the size of the array. Instead, you should set the size to [1,nboxes*nterms1], which is the maximum size that the array can have. So the corrected line should be:

fluctuation = zeros(1,nboxes*nterms1);}

%% Import the text from the file "Taking Responsibility for Your Own Actions pdf.docx"

filename = "Taking Responsibility for Your Own Actions pdf.docx";

str = extractFileText(filename);

% Preprocess the text by removing punctuation and converting all characters to lowercase

str1 = erasePunctuation(str);

% Split the text into individual words

str2=split(str1);

%Length of word

k=length(str2);

%Number of words

x=[1:k];

% Map each word to its corresponding index of length

for i=x:k

k(i) = strlength(str2(i));

end

y = k;

%Plot the random walk time series

figure(1)

plot(x,y)

title('Time Series Plot (Number of Letters against Position of Words)')

xlabel('Position of words')

ylabel('Number of letters')

grid on

numpts=20;

llimit=2;

rlimit=6;

lgboxlength=linspace(llimit,rlimit,numpts);

boxlength= floor(10.^lgboxlength);

%% Calc Fluctuation for each Boxlength s and calc Fsquared

for j= 1:numpts

nterms1=boxlength(j);

nboxes=floor(kterms1);

fluctuation = zeros(1,nboxes*nterms1); % corrected error here

trend = zeros(1,nboxes*nterms1); % added missing initialization

%% Calc Trend in Each box of length s and calc Fsquared

for i=1:nboxes

start =(i-1)*nterms1+1;

finish=i*nterms1;

x=[start:finish];

a=polyfit(x,y(start:finish),1);

trend_segment=a(1)*x+a(2);

trend(start:finish)=trend_segment;

fluctuation(start:finish)=y(start:finish)-trend_segment;

end

f(j)=sqrt(mean(fluctuation .^2));

end

%% plotting the log-log Graph

figure(2) % corrected error here

plot(log10(boxlength),log10(f),'+k-')

title('Detrended Time Series Plot (Number of Letters against Position of Words)')

xlabel('Logarithm of box length')

ylabel('Logarithm of fluctuation')

grid on

Error in Numerical1223 (line 65) fluctuation = zeros (1, nboxes nterms 1); corrected error here Numerical1223 Error using zeros Size inputs must be scalar. Error in Numerical1223 (line 65) fluctuation = zeros (1, nboxes nterms1); corrected error here