Text analysis 1


The goal of this exercise is to create a running script, thus it is sufficient to upload a script
file.

The provided data set consists of 14 annual reports of V4 presidencies. Texts are lemmatized, but
not there is no additional pre-processing. The corpus consists of 171 940 individual words.


1.       Prepare R for analysis (2pts)

a.       Use commands to set proper working directory

b.      Use commands to load proper packages


2.       Use command to create corpus from texts (2pts)


3.       Apply 3 chosen cleaning operations over the corpus of texts (2pts)


4.       Create term-document matrix (2pts)


5.       Obtain most frequent words and set reasonable cutoff (explore available functions and
their outputs) (2pts)


6.       Bonus quesiton (1pt) – convert term-document matrix to matrix object and save it as a CSV
document


Suggestions

-          Explore possibilities of packages using R help

-          Google for ready-made solutions, if necessary

-          If you want to make a note/comment in the script, use hashtag (#) and write text after
that