Topshiriqlar 2 (Matplotlib)

Quyidagi mashqlar source/libs1/matplot_lib.ipynb mavzulari asosida tuzilgan.

1. Chiziqli grafik

  1. x = np.arange(0, 21) uchun quyidagi 3 funksiyani bitta grafikda chizing:

    • y1 = x

    • y2 = x**2

    • y3 = x**3 Har bir chiziqqa label bering va legend() qo‘shing.

  2. np.sin(x) va np.cos(x) ni 0 dan 2π gacha bo‘lgan oraliqda chizing (np.linspace).

    • sin: marker 'o', cos: marker 'x'.

  3. Grafikga sarlavha (title), o‘qlar nomi (xlabel, ylabel) va grid(True) qo‘shing.

2. Scatter

  1. rng = np.random.default_rng(0) bilan 300 ta nuqta yarating:

    • x = rng.normal(size=300)

    • y = 3*x + rng.normal(scale=0.7, size=300) Scatter chizing va alpha ni moslang.

  2. (Ixtiyoriy) y qiymatlariga qarab nuqtalarni ranglang (c=) va colorbar qo‘shing (plt.colorbar()).

3. Bar

  1. Quyidagi kategoriyalar uchun ustunli grafik chizing:

    • cats = ['Dush', 'Sesh', 'Chor', 'Pay', 'Jum', 'Shan', 'Yak']

    • vals = [5, 7, 6, 8, 9, 3, 4] grid(axis='y') qo‘shing.

  2. Ustunlarning ustiga qiymatni yozib chiqing (har bir bar ustida vals[i] ko‘rinsin).

4. Histogram

  1. rng.normal(0, 1, size=10000) uchun gistogramma chizing:

    • bins=20, keyin bins=60 qilib solishtiring.

  2. density=True bilan gistogramma chizing va farqini izohlang (1–2 gap).

5. Subplots

  1. 2x2 subplots yarating (fig, ax = plt.subplots(2,2, figsize=(...))) va quyidagilarni joylashtiring:

    • (0,0): y=x**2 line plot

    • (0,1): scatter (4-masala)

    • (1,0): bar (6-masala)

    • (1,1): histogram (8-masala) Har bir subplotga kichik sarlavha bering va tight_layout() ishlating.

6. Saqlash

  1. O‘zingiz yoqtirgan grafigingizni plt.savefig('my_plot.svg', bbox_inches='tight') bilan saqlang.

    • Fayl yaratilganini tasdiqlash uchun ishchi papkada bor-yo‘qligini tekshiring.

7. Kichik loyiha (ixtiyoriy)

  1. 30 kunlik “kunlik o‘qish soati” ma’lumotini o‘zingiz generatsiya qiling (masalan, rng.integers(0, 6, size=30)).

    • Line plot: kun -> soat

    • Histogram: soat taqsimoti

    • Natija: o‘rtacha, min, max ni hisoblab, grafik sarlavhasida ko‘rsating.