Cov txheej txheem:
Video: Kuv yuav ua li cas npaj ntau daim duab ntawm tib lub phiaj xwm hauv R?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Ntau nkhaus ntawm lub tib zajlus
Tsim thawj zaj siv cov zaj () ua haujlwm. Rau qhov tom ntej cov phiaj xwm , tsis txhob siv lub zaj () muaj nuj nqi, uas yuav overwrite qhov uas twb muaj lawm zaj . Hloov chaw, txhua tus ib ntawm cov nkhaus tom ntej yog npaj siv cov ntsiab lus () thiab kab() muaj nuj nqi , uas nws hu zoo ib yam li cov zaj ().
Yog li ntawd, kuv yuav ua li cas npaj ntau lub phiaj xwm hauv R?
Kev sib xyaw ua ke
- R ua kom yooj yim los ua ke ntau cov phiaj xwm rau hauv ib daim duab tag nrho, siv ob qho tib si.
- Nrog par() muaj nuj nqi, koj tuaj yeem suav nrog cov kev xaiv mfrow = c(nrows, ncols) los tsim cov matrix ntawm nrows x ncols plots uas tau sau los ntawm kab.
- Lub layout() muaj nuj nqi muaj daim ntawv layout(mat) qhov twg.
Ib tug kuj yuav nug, ua li cas koj npaj ib kab kab hauv R? Qhov yooj yim zaj txib The zaj hais kom lees txais ntau qhov kev sib cav los hloov qhov zoo ntawm tus daim duab . Ntawm no, peb siv los zaj a kab es tsis yog cov cim, hloov xim rau ntsuab, ua tus kab dav yog 5, qhia cov ntawv sib txawv rau x thiab y axis, thiab ntxiv ib lub npe (nrog rau qhov kev sib cav loj).
Ntawm no, kuv yuav ua li cas npaj ob kab hauv Excel?
Nyem qhov "Ntxig" tab, thiab tom qab ntawd xaiv cov kab ntawv hom thiab sub-hom koj xav tsim. Piv txwv li, yog tias koj yog phiaj xwm tus nqi Tshuag dhau sijhawm, koj tuaj yeem siv ib kab graph los yog tawg zaj . Cov ntaub ntawv no tau sau tias "Series 1." Txoj cai-nias qhov chaw seem ntawm daim ntawv, nyem "Xaiv cov ntaub ntawv," thiab tom qab ntawd nyem "Ntxiv."
Cov lus txib twg tso cai rau cov ntawv hauv daim duab?
Txhawm rau ntxiv cov ntawv rau ib zaj lus hauv R, cov ntawv () thiab mtext() R muaj nuj nqi siv tau.
Pom zoo:
Dab tsi yog txheej txheem ntawm kev txhais ob lossis ntau txoj hauv kev hauv tib chav kawm uas muaj tib lub npe tab sis sib txawv tsis tshaj tawm?
Method overloading Tus kos npe ntawm ib txoj kev tsis suav nrog nws cov khoom xa rov qab los yog nws qhov kev pom los yog qhov kev zam uas nws yuav pov. Kev xyaum ntawm kev txhais ob lossis ntau txoj hauv kev hauv tib chav kawm uas qhia tib lub npe tab sis muaj qhov sib txawv yog hu ua cov txheej txheem overloading
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Multipurpose Internet Mail Extension (MIME) raws tu qauv. MIME yog ib hom kev ntxiv lossis cov txheej txheem ntxiv uas tso cai rau cov ntaub ntawv tsis yog ASCII xa mus rau SMTP. Nws tso cai rau cov neeg siv sib pauv ntau hom ntaub ntawv hauv Is Taws Nem: suab, yees duab, duab, daim ntawv thov kev pab cuam thiab
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