Hordhac ku saabsan Tijaabada ANOVA

Tijaabada ANOVA (Falanqaynta Kala Duwanaanta) waa hab statistical ah oo loo isticmaalo in lagu barbar dhigo celceliska laba kooxood ama ka badan. Waxay si gaar ah faa'iido u leedahay marka aad rabto in aad ogaato haddii ay jirto farqi muuqda oo u dhexeeya celcelisyada kooxaha kala duwan.

Goorma la Isticmaalaa ANOVA?

• Marka aad haysato saddex kooxood ama ka badan oo aad rabto in aad barbar dhigto.
• Marka aad rabto in aad ogaato haddii ay jirto farqi muuqda oo u dhexeeya celcelisyada kooxaha.
• Marka xogtaadu ay raacayso qaybinta caadiga ah (normal distribution).

Tusaale: Isticmaalka ANOVA ee Python

Aynu eegno sida loo isticmaalo ANOVA iyadoo la adeegsanayo Python. Waxaan u isticmaali doonnaa maktabadda scipy.stats si aan u fulinno tijaabada ANOVA.

import scipy.stats as stats

# Xogta kooxaha
koox_1 = [25, 30, 35, 40, 45]
koox_2 = [20, 25, 30, 35, 40]
koox_3 = [30, 35, 40, 45, 50]

# Fulinta tijaabada ANOVA
f_statistic, p_value = stats.f_oneway(koox_1, koox_2, koox_3)

# Daabacaadda natiijooyinka
print("F-Statistic:", f_statistic)
print("P-Value:", p_value)

# Go'aan qaadasho
alpha = 0.05
if p_value < alpha:
 print("Waxaa jira farqi muuqda oo u dhexeeya kooxaha")
else:
 print("Ma jiro farqi muuqda oo u dhexeeya kooxaha")

Sharaxaadda koodhka:

• Waxaan soo dejineynaa maktabadda scipy.stats.
• Waxaan qeexeynaa xogta saddex kooxood.
• Waxaan u isticmaaleynaa stats.f_oneway() si aan u fulinno tijaabada ANOVA.
• Waxaan daabacnaa F-statistic iyo P-value.
• Waxaan go'aan ka gaareynaa haddii ay jirto farqi muuqda oo u dhexeeya kooxaha iyadoo la eegayo P-value marka la barbar dhigo heerka muhiimadda (alpha).

Fahamka Natiijooyinka

Haddii P-value ay ka yar tahay heerka muhiimadda (tusaale ahaan, 0.05), waxaan diideynaa malaha eber (null hypothesis) waxaanuna gunaanadeynaa in ay jirto farqi muuqda oo u dhexeeya celcelisyada kooxaha. Haddii kale, ma diideyno malaha eber, taas oo macnaheedu yahay in aanan haysan caddayn ku filan oo aan ku sheegno in ay jirto farqi muuqda.

Gabagabo

Tijaabada ANOVA waa qalab awood leh oo loo isticmaalo in lagu barbar dhigo celcelisyada kooxaha kala duwan. Isticmaalka Python iyo maktabadda scipy.stats waxay fududeyneysaa fulinta falanqayntan iyo helitaanka natiijooyin waxtar leh.