Video: Dab tsi yog qhov txawv ntawm cov ntaub ntawv ncej thiab cov ntaub ntawv rooj?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
cov ntaub ntawv. frame yog ib feem base R. cov ntaub ntawv. rooj yog ib pob uas txuas ntxiv cov ntaub ntawv.
Qhov sib txawv, qhov txawv ntawm cov ntaub ntawv rooj thiab cov ntaub ntawv ncej hauv R yog dab tsi?
ncej yog: ib daim ntawv teev cov vectors ntawm tib qhov ntev, nrog a ob peb yam ntxiv xws li cov npe kab. cov ntaub ntawv . rooj yog ib pob tswj los ntawm Matt Dowle uas lub hom phiaj ua kom tiav ntau lub hom phiaj: Tso cai rau txhua kab los yog hloov kho los ntawm kev siv.
Ib yam li ntawd, lub rooj ntaub ntawv yog dab tsi thiab nws tuaj yeem siv rau dab tsi? Lub hom phiaj ntawm cov ntaub ntawv yog los nthuav qhia cov ntaub ntawv hauv kab sib chaws, lossis matrix, thiab kom muaj kab lossis kab uas qhia lub ntsiab lus ntawm cov ntaub ntawv hauv kab sib chaws.
Nyob rau hauv no hais txog, yog cov ntaub ntawv rooj sai dua cov ntaub ntawv ncej?
rooj ua ib daim qauv ntiav ntawm cov cov ntaub ntawv ncej . Tsis yog nyeem cov ntaub ntawv xwb, sau cov ntaub ntawv siv cov ntaub ntawv . rooj yog ntau sai dua sau.
Vim li cas cov ntaub ntawv ceev ceev?
Loj heev ceev . Qhov no yog vim nyob rau hauv ib feem ntawm cov yuam sij (txheej kab) thiab rau qhov hais raws li qhov xwm txheej ntawm cov cov ntaub ntawv ntawm disk. Keying xaiv cov rooj ntawm cov neeg siv teev kab. Nws ua yog li ntawd los ntawm txoj kev ntawm kab lus zais zais (yog li ntawd cov ntaub ntawv yeej tsis txav).
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