🚧 Adds (non-working) boxplot

DATASET.md

@@ -15,7 +15,7 @@ The cleaned dataset will have the following structure:
 | 8     | Living     | enum  | [0-4] |
 | 9     | Commute    | enum  | [0-4] |
 | 10    | Sleep      | enum  | [0-2] |
-| 11    | Absence    | int   | -     |
+| 11    | Absence    | int   | [0-∞] |
 
 It will be saved in a `.npy` file (numpy format)
 

analyze.py

@@ -1,7 +1,14 @@
 from typing import List
+import argparse
 
 import numpy as np
 import scipy.stats as stats
+import matplotlib.pyplot as plt
+
+parser = argparse.ArgumentParser()
+parser.add_argument("-g", "--graph", action="store_true", default=False, help="Plot graph")
+args = parser.parse_args()
+graph = args.graph
 
 
 def analyze(name: str, data: List[np.ndarray]):
@@ -11,8 +18,37 @@ def analyze(name: str, data: List[np.ndarray]):
 
     if p > 0.05:
         print("statistically insignificant\n")
-        return
+        return F, p
 
     print("statistically significant")
     tukey_results = stats.tukey_hsd(*data)
     print(tukey_results)
+
+    return F, p
+
+
+def plot_box(data, labels, Fs, ps, title, titles):
+    if not graph:
+        return
+
+    fig, axs = plt.subplots(2, 2, sharex=True)
+    fig.suptitle(title)
+    fig.set_size_inches(12, 9)
+
+    for i in range(2):
+        for j in range(2):
+            print(f"{i}x{j} giving {i * 2 + j}")
+            axs[i, j].boxplot(data[i * 2 + j], labels=labels)
+            axs[i, j].set_title(titles[i * 2 + j])
+
+            F = round(Fs[i * 2 + j], 2)
+            p = round(ps[i * 2 + j], 4)
+            axs[i, j].text(0.01, 0.99, f"F-stat: {F}\np-val: {p}", ha="left", va="top", transform=axs[i, j].transAxes,
+                           fontweight="bold")
+
+            avgs = np.array([a.mean() for a in data[i * 2 + j]])
+            print(avgs)
+
+    fig.tight_layout()
+    fig.show()
+    plt.show()

analyze_sex.py

@@ -1,6 +1,6 @@
 import numpy as np
 
-from analyze import analyze
+from analyze import analyze, plot_box
 
 dataset = np.load("clean.npy")
 print(f"dataset shape: {dataset.shape}; analyzing column 1 (sex)")
@@ -11,13 +11,19 @@ print("")
 
 def analyze_sex(name: str, col: np.ndarray):
     sex_col = dataset[:, 1]
-    analyze(name, [
+    data = [
         col[sex_col == 0],
         col[sex_col == 1]
-    ])
+    ]
+    F, p = analyze(name, data)
+    return data, F, p
 
 
-analyze_sex("gpa", dataset[:, 2])
+data_gpa, F_gpa, p_gpa = analyze_sex("gpa", dataset[:, 2])
-analyze_sex("math", dataset[:, 3])
+data_math, F_math, p_math = analyze_sex("math", dataset[:, 3])
-analyze_sex("slovak", dataset[:, 4])
+data_slovak, F_slovak, p_slovak = analyze_sex("slovak", dataset[:, 4])
-analyze_sex("english", dataset[:, 5])
+data_english, F_english, p_english = analyze_sex("english", dataset[:, 5])
+
+plot_box([data_gpa, data_math, data_slovak, data_english], ["Female", "Male"],
+         [F_gpa, F_math, F_slovak, F_english], [p_gpa, p_math, p_slovak, p_english],
+         "Pohlavie", ["Priemer", "Matematika", "Slovenčina", "Angličtina"])