How do I find the most repeated words in a text file?
Table of Contents
- 1 How do I find the most repeated words in a text file?
- 2 How do you check if a word is present in a file in C?
- 3 How do text files work in C?
- 4 How do you read a file and write to another file in C?
- 5 How do you read a file in C?
- 6 Which data structure is most often used when counting the frequency of words in a text document?
How do I find the most repeated words in a text file?
This can be done by opening a file in read mode using file pointer. Read the file line by line. Split a line at a time and store in an array. Iterate through the array and find the frequency of each word and compare the frequency with maxcount.
How do you check if a word is present in a file in C?
To find first occurrence of word in str use pos = strstr(str, word); (where pos is pointer to character). pos will point to first occurrence of word in str if exists, otherwise points to NULL . Check if(pos != NULL) then find column index using col = pos – str .
How do text files work in C?
In that case, use the text file functions in stdio:
- fopen – opens a text file.
- fclose – closes a text file.
- feof – detects end-of-file marker in a file.
- fprintf – prints formatted output to a file.
- fscanf – reads formatted input from a file.
- fputs – prints a string to a file.
- fgets – reads a string from a file.
What is the computational complexity of finding the most frequent word in a document?
Reading M words from file will require O(m) time, where as creating N element heap will take O(n). Also, scanning through all words and inserting them on to heap has complexity of O((m-n) log n). Overall complexity to find top n most frequent words in fileis O(m log m).
How do I count repeated words in a string in Java?
Count occurrences of a word in string
- First, we split the string by spaces in a.
- Then, take a variable count = 0 and in every true condition we increment the count by 1.
- Now run a loop at 0 to length of string and check if our string is equal to the word.
How do you read a file and write to another file in C?
File I/O in C
- Create a variable of type “FILE*”.
- Open the file using the “fopen” function and assign the “file” to the variable.
- Check to make sure the file was successfully opened by checking to see if the variable == NULL.
- Use the fprintf or fscanf functions to write/read from the file.
How do you read a file in C?
Opening a file is performed using the fopen() function defined in the stdio….Opening a file – for creation and edit.
Mode | Meaning of Mode | During Inexistence of file |
---|---|---|
r | Open for reading. | If the file does not exist, fopen() returns NULL. |
rb | Open for reading in binary mode. | If the file does not exist, fopen() returns NULL. |
Which data structure is most often used when counting the frequency of words in a text document?
TestNew stuff! A Python function may require ____, which are values used by the function. The ____ comparison operator returns true if variables are not equal.
How do I find a repeated word in a string in python?
Approach is simple,
- First split given string separated by space.
- Now convert list of words into dictionary using collections. Counter(iterator) method. Dictionary contains words as key and it’s frequency as value.
- Now traverse list of words again and check which first word has frequency greater than 1.