Get Coefficients
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After a folder analysis has been carried out, this function collects information about regression coefficients for each formant for each sound (stored in the info files (in the 'infos' folder). This function collects this and saves it to a single CSV file. These coefficients are useful for all sorts of reasons, including being useful in modelling average formant trajectories across all speakers and in the automatic classification of speakers and speech sounds.
A CSV file will be written to the 'processed_data' subfolder. Each row in the CSV file represents a single sound. Columns are labelled like CXY where X represents formant number and Y represents coefficient number (1 = intercept, 2 = linear, 3 = quadratic, ...). So, C12 is coefficient 2 (the linear term) for F1, and C21 is the first coefficient (the intercept) for F2.
