Question

3. Write a program that reads a text file and generate a histogram of the lengths of the words con- tained in the file. You should test your program using the file "marktwain.txt" available at the d2l website. You may use the MatLab functions isletter) or isspace) to test the characters in the array and size ) to determine the array size. To plot the histogram, you can usc the Mat- Lab functions hist) and bar). Extra credit: plot a histogram of the length (number of letters, punctuations and spaccs, including quotes and brackets) of the sentences contained in the filo An interesting discussion can be found in http://ds.nahoo.net/Academic/Maths/Sentence.html You should also upload the final MatLab program to http://d2l.arizona.cdu

Can someone tell me how to read a text file of an article into a number of words count?

Answer 1

fid = fopen('file.txt'); %opening input text file

s=textscan(fid,'%s'); %reading input file

fclose(fid); %closing file

str=s{:};

[ii,jj,kk]=unique(str); %ii contains all unique words of text file

%jj contains location of first occurance of word

freq=hist(kk,(1:numel(jj))')';%it returns frequency count of each word

[ii num2cell(freq)] %returns word and frequency

Note:- text file and matlab file should be in same folder