Xisaab-dhimis
Tixraac Pearson ee r u dhexeeya laba liis oo lambarada.
Natiijooyinka cusbooneysiinta sida aad ku qorto.
Ku saabsan Kalkaaliyahan
is a metric used to measure the strength of a linear relationship between two variables. It is used to measure the correlation between two variables. The Pearson’s correlation coefficient (r) is a metric used to measure the strength of a linear relationship between two variables. It is used to measure the strength of a linear relationship between two variables. It is used to measure the strength of a linear relationship between two variables. It is used to measure the strength of a linear relationship between two variables. It is used to measure the strength of a linear relationship between two variables. Work
Su'aalaha badanaa la isweydiiyo
Maxaa ka dhigan yahay coefficient xiriirka ii sheeg?
Waxay ku qiimeeyaa sida dhaw laba isbeddellada wada socdaan in line toosan. Qiimaha ku dhow +1 ama -1 muujiyaan xiriir line xoog leh, halka qiimaha ku dhow 0 micnaheedu yahay wax yar ama aan xiriir line ah. Calaamadda muujinaysaa dhinaca xiriirka.
Ma xiriirka macnaheedu waa sababnimo?
No. A kor u xiriirka muujinaya laba isbeddelka dhaqdhaqaaqa oo isku mar laakiin ma aha in mid ka mid ah sababaha kale. A faahfaahinta saddexaad qarsoon, ama isku dhac daahir ah, waxay abuuri kartaa xiriir xoog leh oo aan xiriir sabab.
Waa maxay R²?
R² waa square of coefficient xiriirka. Waa qaybta kala duwan ee y lagu sharaxay xiriirka line la x - a r of 0.8 siiyaa R² of 0.64, taas oo macnaheedu yahay 64% ee kala duwanaansho waa la xisaabiyey.
Maxaa ka mid ah xiriirka xoog leh?
Sida tilmaame ah oo qallalan, a r ka hooseeya 0.3 waa xoog yar, in ka badan 0.3 ilaa 0.5 dhexdhexaad ah, 0.5 ilaa 0.7 dhexdhexaad ah-in-ku xoog badan iyo kor ku 0.7 xoog badan. Kalkulatorkan labels xoogga aad, laakiin cutoffs caqliga badan kala duwan yihiin by field.
Maxaa ka dhigan yahay xiriirka xun?
R xun waxay ka dhigan tahay in isbeddelada ay u wareegaan jihooyin ka soo horjeeda: sida mid ka mid ah kor u kaca, mid kale ayaa u muuqda inuu hoos u dhaco. R ka -0.9 waa isku mid xoog leh oo xiriir xagal ah sida +0.9, oo kaliya u beddelay jihada.
Maxay tahay farqiga u dhexeeya xiriirka iyo covariance?
Covariance miisaankiisu yahay sida laba isbeddelka kala duwan oo isku mid ah laakiin miisaanka ku xiran yahay unugyada, sidaas darteed waa adag tahay in la fahmo. Pearson ee r waa covariance kala qaybsan laba ka mid ah ka leexashada caadiga ah, taas oo rescales in ay mid ka mid ah unit-free -1 ilaa +1 range.
Sidee ayaa line soo noqnoqoshada la xiriira la xiriirka?
The ugu yar-squares line regression waa line toosan oo ugu fiican ee ku habboon dhibcaha, iyo jiidashada ka qayb qaadataa calaamad la r. The xiriirka kuu sheegi sida adag oo dhibcaha ku garaaci line, halka r² siiyaa qaybta kala duwan ee line sharxaya.
API — isticmaal xisaabinta ka code
Wici xisaabinta sida free JSON endpoint - key ma loo baahan yahay. Dib u soo dir qiimaha goobta hoos ku qoran sida parameters su'aal ama JSON. Akhri dhammaan API xuquuqda →
Xarafka
GET https://calculator.free/api/v1/correlation-coefficient/curl
curl "https://calculator.free/api/v1/correlation-coefficient/?x=1, 2, 3, 4, 5&y=2, 4, 5, 4, 6"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/correlation-coefficient/?" + new URLSearchParams({
"x": "1, 2, 3, 4, 5",
"y": "2, 4, 5, 4, 6"
}));
const data = await r.json();
console.log(data.results);Natiijooyinka waa tirakoobka loogu talagalay tilmaamaha guud oo keliya, maaha dhaqaale, caafimaad ama talo bixin canshuur.