1 sex - student's sex (binary: "F" - female or "M" - male) 2 age - student's age (numeric: from 15 to 22) 3 address - student's home address type (binary: "U" - urban or "R" - rural) 4 famsize - family size (binary: "LE3" - less or equal to 3 or "GT3" - greater than 3) 5 Pstatus - parent's cohabitation status (binary: "T" - living together or "A" - apart) 6 Medu - mother's education (numeric: 0 - none, 1 - primary education (4th grade), 2 – 5th to 9th grade, 3 – secondary education or 4 – higher education) 7 Fedu - father's education (numeric: 0 - none, 1 - primary education (4th grade), 2 – 5th to 9th grade, 3 – secondary education or 4 – higher education) 8 traveltime - home to school travel time (numeric: 1 - <15 min., 2 - 15 to 30 min., 3 - 30 min. to 1 hour, or 4 - >1 hour) 9 studytime - weekly study time (numeric: 1 - <2 hours, 2 - 2 to 5 hours, 3 - 5 to 10 hours, or 4 - >10 hours) 10 failures - number of past class failures (numeric: n if 1<=n<3, else 4) 11 schoolsup - extra educational support (binary: yes or no) 12 famsup - family educational support (binary: yes or no) 13 paid - extra paid classes within the course subject (Math or Portuguese) (binary: yes or no) 14 activities - extra-curricular activities (binary: yes or no) 15 nursery - attended nursery school (binary: yes or no) 16 higher - wants to take higher education (binary: yes or no) 17 internet - Internet access at home (binary: yes or no) 18 romantic - with a romantic relationship (binary: yes or no) 19 famrel - quality of family relationships (numeric: from 1 - very bad to 5 - excellent) 20 freetime - free time after school (numeric: from 1 - very low to 5 - very high) 21 goout - going out with friends (numeric: from 1 - very low to 5 - very high) 22 Dalc - workday alcohol consumption (numeric: from 1 - very low to 5 - very high) 23 Walc - weekend alcohol consumption (numeric: from 1 - very low to 5 - very high) 24 health - current health status (numeric: from 1 - very bad to 5 - very good) 25 absences - number of school absences (numeric: from 0 to 93) 26 G1 - first period grade (numeric: from 0 to 20) 27 G2 - second period grade (numeric: from 0 to 20)