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It is very convenient to use Python to load raw text data into the memory for data processing. Here, we provide the code template for your reference. It shows you how to list the data files that you want and read the text data into a list. Python Text Analysis
This post shows you how to calculate the keyword frequency from text and draw the bar chart by using the JpGraph library. PHP JpGraph Text Analysis
Show you how to count words and extract words from a string by using the PHP function str_word_count() PHP