Cyfrifo
Canfod y gwyriad absoliwt canolig (MAD) o set data.
Diweddaru canlyniadau wrth i chi deipio.
Am y cyfrifiadur hwn
mean absolute deviation is the average distance between each value and the mean, using absolute values so distances never cancel out. It measures spread like the standard deviation but is simpler and less sensitive to outliers, because it does not square the deviations. This calculator reports the MAD together with the mean, range and the sum of absolute deviations it was measured from. This calculator reports the MAD together with the mean, range and the sum of absolute deviations it was measured from. This calculator is easy to explain to a non-technical audience and it is easy to trace every value’s distance so that you can get the result.The method is direct: find the mean, take the absolute value of each value’s distance from it, add those distances up and divide by the number of values. The MAD is 12 ÷ 5The mean absolute deviation is the average distance between each value and the mean, using absolute values.Worked example:The mean absolute deviation is the average distance between each value and the mean, using absolute values so distances never cancel out.Worked example:The mean absolute deviation is the average distance between each value and the mean, using absolute valuesThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average distance between each value and the meanThe mean absolute deviation is the average
Cwestiynau a ofynnir yn aml
Sut mae MAD yn wahanol i ddirwyn safonol?
Mae MAD yn cyfrifo' r canran o' r diffygion diderfyn, tra bod diffyg safonol yn cyfrifo' r canran o' r diffygion sgwâr, ac yna' n cymryd gwreiddiau sgwâr. Gan nad yw' n sgwâr, mae MAD yn rhoi llai o bwysau i' r allbwn ac mae' n haws ei esbonio, ond mae gan ddiffyg safonol nodweddion materol mwy cyfleus.
Sut ydw i'n cyfrifo'r MAD â llaw?
Canfod y canolrif, ei dynnu o bob gwerth a chymryd gwerth absoliwt pob canlyniad, wedyn canolrifo'r pellteroedd hyn. Am 2, 4, 6, 8, 10, 6 yw'r canolrif a MAD yw (4+2+0+2+4)/5 = 2.4.
A yw' r gwyriad absoliwt canolig yr un fath â' r gwyriad canolig?
Ie, mae' r ddau derm yn cyfeirio at yr un peth yn aml: canran y pellteroedd gwirion o bwynt canolog, yn aml y canran. Mae rhai llyfrynnau yn mesur y pellteroedd o' r canran yn lle, sy' n lleihau' r pellter cyfan, ond mae' r cyfrifiwr yma yn defnyddio' r canran.
Pam mae MAD yn defnyddio gwerthoedd diderfyn?
Mae diffygion uwchben y canolrif yn bositif, a' r rhai islaw yn negyddol, ac maent bob amser yn cyfansoddi i sero, felly mae eu canolrif plaen yn ddiwerth. Mae cymryd y gwerth absoliwt yn tynnu' r arwydd fel bod pob pellter yn cyfrif, gan roi mesur gwir o ledaeniad.
Pa bryd ddylwn i ddewis MAD yn lle gwyriad safonol?
Dewiswch MAD pan hoffech fesur lledaeniad sy' n hawdd ei esbonio a chryf i' r all- linellau, neu pan fyddai sgwâr yn gor- bwyso rhai gwerthoedd llethol. Dyma' r gwyriad safonol pan mae angen y priodweddau mathemategol mae' n eu bwydo i mewn, fel y dosraniad arferol neu brofion seiliedig ar amrywiad.
A all y gwyriad absoliwt canolig fod yn sero?
Dim ond pan fo pob gwerth yn hafal i' r canolrif - hynny yw, pan fo pob rhif yn yr un fath a dim gwahaniad. Fel arall, mae' r MAD bob amser yn rhif positif.
API - defnyddio'r cyfrifiannell hwn o'r cod
Galw'r cyfrifiannell hwn fel diwedd-bwynt JSON rhad ac am ddim - nid oes angen allwedd. Anfonwch y gwerthoedd maes isod fel paramedrau ymholiad neu JSON. Anything you omit uses the same default this page is pre-filled with; an unknown parameter is a 400, never a silent zero. Darllen y dogfennaeth API lawn →
Diwedd
GET https://calculator.free/api/v1/mean-absolute-deviation/curl
curl "https://calculator.free/api/v1/mean-absolute-deviation/?numbers=2, 4, 6, 8, 10"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/mean-absolute-deviation/?" + new URLSearchParams({
"numbers": "2, 4, 6, 8, 10"
}));
const data = await r.json();
console.log(data.results);Mae'r canlyniadau yn amcangyfrifon ar gyfer cyfarwyddyd cyffredinol yn unig, nid cyngor ariannol, meddygol na thrafodion treth.