Dear Expert Please can you explain( How correlation of a text file can be done using the detrended fluctuation analysis in MATLAB) .What I have learnt I have to make a time series of the text IN MATLAB . Then I should convert the time series into a random walk (maybe use the cumsum function.)Then use the detrended fluctuation analysis function to obtain the detrended in my random walk plot of my time series. The aim of the following is mainly deduce the detrended fluctuation analysis of the following program using a random walk .To achieve the random walk maybe the mean word length can be used as a hint(Please update this program with the above requirements using comments).

Below is the program of the time series . % 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(str); % Map each word to its corresponding index of length len_str=zeros(1,length(str2)); for i=1:length(str2) len_str(i) = strlength(str2(i)); end

plot(len_str) title('Time Series Plot (Number of Letters against Position of Words)') xlabel('Position of words') ylabel('Number of letters') grid on

Below is the time series obtain from the above text

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