Matrix na daidaitawa kayan aiki ne na ƙididdiga wanda ke ba da hanya don aunawa da bayyana alaƙa tsakanin masu canji biyu ko fiye. Matrix murabba'i ne wanda ke nuna ma'aunin daidaitawa tsakanin duk yuwuwar nau'i-nau'i na masu canji a cikin saitin bayanai. Ma'auni a cikin matrix suna nuna ƙarfi da shugabanci na dangantaka tsakanin masu canji, tare da ƙididdiga daga -1 zuwa 1. Daidaitawar 1 yana nuna cikakkiyar daidaituwa mai kyau, yayin da haɗin kai na -1 yana nuna cikakkiyar daidaituwa mara kyau. Daidaiton 0 yana nuna babu alaƙa tsakanin masu canji. Ana amfani da matrix daidaitawa sau da yawa a cikin bincike iri-iri kuma kayan aiki ne mai amfani don fahimtar alakar da ke tsakanin masu canji a cikin hadadden bayanai.