I-Pandas iwumtapo wezincwadi wePython onamandla osetshenziswa kabanzi ukukhohlisa nokuhlaziya idatha. Umsebenzi owodwa ovamile owenziwe ngedatha ukubuyisela amanani ekholomu ngokusekelwe kumibandela ethile, njengokumisa isimo noma ukwenza imephu kwamanye amanani. Kulesi sihloko, sizohlola ukuthi singawusebenzisa kanjani ngempumelelo lo msebenzi usebenzisa umtapo wezincwadi wePandas. Kungakhathaliseki ukuthi ungusosayensi wedatha, umhleli, noma uchwepheshe wemfashini ohlola umhlaba wamathrendi emfashini aqhutshwa idatha, lolu lwazi luzoba usizo olukhulu.
Ukhiye wokuqonda lo msebenzi usekukwazini imisebenzi eyakhelwe ngaphakathi enikezwe ilabhulali ye-Pandas. Ngokukhethekile, sizogxila ekusetshenzisweni kokuthi `faka esikhundleni()`, `imephu()`, kanye nokuthi `sebenzisa()` imisebenzi ukuze uguqule amanani ekholomu ngokusekelwe kumibandela ehlukahlukene.
import pandas as pd
# Sample data
data = {'Fashion_Style': ['Boho', 'Grunge', 'Preppy', 'Vintage', 'Athleisure'],
'Colors': ['Earthy tones', 'Dark shades', 'Bright tones', 'Muted tones', 'Monochrome']}
df = pd.DataFrame(data)
# Replacing column values
df['Colors'] = df['Colors'].replace(['Earthy tones', 'Monochrome'], ['Warm tones', 'Contrast tones'])
print(df)
Incazelo Yesinyathelo Nesinyathelo Yekhodi
1. Okokuqala, singenisa umtapo wezincwadi wePandas njengokuthi `pd`. Lena ingqungquthela evamile, futhi isivumela ukuthi sibize imisebenzi ye-Pandas ngesinqamuleli esithi `pd`.
2. Okulandelayo, sidala isichazamazwi esibizwa ngokuthi `idatha` equkethe amakholomu 'Isitayela_semfashini' kanye 'Nemibala', kanye namanani awo ahlukahlukene.
3. Sibe sesidala i-DataFrame ebizwa ngokuthi `df` sisebenzisa umsebenzi othi `pd.DataFrame()` ngesichazamazwi `solwazi` njengokuphikisana.
4. Ngemva kwalokho, sisebenzisa umsebenzi ``buyisela()` ukuze simiselele amanani athile kukholamu 'Yemibala'. Esibonelweni sethu, sishintsha 'amathoni asemhlabeni' sifaka 'Amathoni afudumele' kanye ne-'Monochrome' sifake 'amathoni wokuqhathanisa'.
5. Ekugcineni, siphrinta i-DataFrame `df` ebuyekeziwe ukuze sihlole umphumela.
Imisebenzi Eyakhelwe Ngaphakathi YamaPanda Wokushintshwa Kwenani Lekholomu
AmaPanda ahlinzeka ngemisebenzi embalwa eyakhelwe ngaphakathi yokusebenza ngamavelu ekholomu kuma-DataFrame. Phakathi kwalokhu, sihlonze `faka esikhundleni()`, `imephu()`, kanye nokuthi `sebenzisa()` njengeziwusizo ikakhulukazi uma kuziwa ekushintsheni amanani ekholomu ngokusekelwe ezimeni ezihlukahlukene.
buyisela (): Lo msebenzi usetshenziselwa ukushintsha amanani ashiwo ku-DataFrame noma Uchungechunge. Ingasetshenziswa kukholomu ethile noma kuyo yonke i-DataFrame, futhi isekela izinkulumo ezivamile zokufanisa iphethini ethuthukisiwe.
df['Colors'] = df['Colors'].replace(['Earthy tones', 'Monochrome'], ['Warm tones', 'Contrast tones'])
imephu(): Umsebenzi `wemephu()` ufana nokuthi `buyisela()`, kodwa usebenzisa umsebenzi othile noma isichazamazwi entweni ngayinye Ochungechungeni. Lokhu kungaba usizo uma udinga ukwenza kumephu amanani ekholomu kumanani amasha ngokusekelwe kusethi ethile yemithetho.
color_mapping = {'Earthy tones': 'Warm tones', 'Monochrome': 'Contrast tones'}
df['Colors'] = df['Colors'].map(color_mapping)
sebenzisa (): Umsebenzi othi `apply()` uyithuluzi elinamandla elisebenzisa umsebenzi othile eduze kwe-eksisi ye-DataFrame. Ingasetshenziswa kuyo yonke i-DataFrame noma amakholomu athile ukuze kuzuzwe uguquko olubanzi.
def update_colors(color_value):
if color_value == 'Earthy tones':
return 'Warm tones'
elif color_value == 'Monochrome':
return 'Contrast tones'
else:
return color_value
df['Colors'] = df['Colors'].apply(update_colors)
Unale misebenzi onawo, usulungele manje ukwenza imisebenzi ehlukahlukene yokukhohlisa idatha kuma-Panda, njengokushintsha amanani ekholomu kokuthi Ozimele Bedatha. Lolu lwazi alusebenzi nje kuphela emkhakheni wesayensi yedatha nokuhlela kodwa futhi lubonakala luwusizo lapho kuhlaziywa izitayela zemfashini zesimanje, ukuhlonza amathrendi asafufusa, nokuqonda ukubaluleka komlando kwezitayela nemibala ehlukahlukene.
