Code
Algoritma & Struktur Data
~ Antarmuka Data ~
CSV
getwd () #Mengetahui DIrektori Kerja atau tempat mengambil file yang akan di input
## [1] "C:/Users/PF2TB/OneDrive/Documents/struktur data"
Cara I
setwd (getwd ()) #Set lokasi dimana file akan diambil (Direktory Kerja)
nf = read.csv ("input/input1.csv" , sep = "," ) #Format pemisah koma
nr = read.csv ("input/input2.csv" , sep = ";" ) # Format Pemisahnya Titikkoma
print (nf) #Contoh Hasil Import
## id name salary start_date dept
## 1 1 Julian 623.00 1/1/2022 DS
## 2 2 Vanessa 515.00 9/23/2022 DS
## 3 3 Jeffry 611.00 11/15/2022 BA
## 4 4 Angel 729.00 5/11/2022 DA
## 5 5 Nikki 843.25 3/27/2022 DS
## 6 6 Ardifo 578.00 5/21/2022 Actuaries
## 7 7 Irene 722.50 7/30/2022 Actuaries
## 8 8 Kefas 632.79 6/17/2022 CA
## 9 9 Sherly 632.79 7/30/2022 DE
## 10 10 Bakti NA 9/3/2018 Lecturer
# Export(save) ke Computer
write.csv (nf, "output/nfexp.csv" , row.names = F)
write.csv (nr, "output/nrexp.csv" , row.names = F)
Cara 2
Dengan Koneksi secara automatic pada DIrectory
(wd= getwd ()) #Mensetting directory
## [1] "C:/Users/PF2TB/OneDrive/Documents/struktur data"
if (! is.null (wd)) setwd (wd)
#Import Data
paris = read.csv (file.path (wd, "input" , "input1.csv" ))
tokyo = read.csv (file.path (wd, "input" , "input2.csv" ))
#Export Data
write.csv (paris, file.path (wd, "output" , 'output1' ))
write.csv (tokyo, file.path (wd, "output" , 'output2' ))
Cara 3
No Directory Needed, langsung memilih file untuk diimport
berlin = read.csv (file.choose ()) #Memilih data dari storage local computer
Excel
pacman :: p_load (readxl,writexl) #Load package readxl dan writexl
#Import
london = read_excel ('input/input4.xls' ) #Import format xls (Excel 2003 kebawah)
oslo = read_excel ('input/input3.xlsx' , sheet = 1 ) #Import format xls (Excel 2003 keatas)
#Export
write_xlsx (london, "output/output3.xlsx" )
write_xlsx (oslo, "output/output4.xlsx" )
TXT & RDS
TXT Dan RDS memiliki file lebih kecil dengan bentuk yang hampir sama dengan Excel, mempercepat proses import export
setwd (getwd ())
# Import
karina = read.table ("input/input5.txt" ) # Format TXT Notepad
winter = source ("input/input6.Rdmpd" ) # Format Txt Rdmpd
giselle = readRDS ('input/input7.rds' ) #RDS Binary
ning2 = readRDS ('input/input8.ascii' ) #Ascii Binary
#EXport
write.table (karina, "output/output5.txt" ) # Format TXT Notepad
dump ("winter" , "output/output6.Rdmpd" ) # Format Txt Rdmpd
saveRDS (giselle, 'output/output7.rds' ) #RDS Binary
saveRDS (ning2, 'output/output8.ascii' , ascii= T)
XML
XML merupakan berbagi format file dan data di Internet yang mirip HTML
# Install library atau package xml, kulife, methods
library ("XML" )
library ("kulife" )
library ("methods" )
#Import Data
okey = xmlParse ('input/input9.xml' )
# Ubah Imported Data menjadi Dataframe
dfxml = xmlToDataFrame (okey)
#Export Data
write.xml (dfxml, 'output/output9.xml' )
JSON
Java Script Object Notation. Diperlukan package jsonlite untuk membaca file JSON
library (jsonlite) #Load Package jsonlite
#Import Data
xoxo = fromJSON ('input/input10.json' )
dfjson = as.data.frame (xoxo) #Ubah ke Dataframe
#Export Data
write_json (dfjson, "output/output10.json" )
Import data dari Web
MEngekstrak data dari internet ke R bisa dari beberapa situs atau repository lainnya
CSV
web_csv <- read.csv ("https://github.com/Bakti-Siregar/dataset/raw/master/Bookdown-Data-Science-for-Beginners/csv1.csv" )
# Impor Data dari Situs github
XLSX
library (rio) #Untuk impor data dari github
install_formats () #Periksa suggested auto-package
## [1] TRUE
web_xlsx = rio :: import ("https://github.com/Bakti-Siregar/dataset/raw/master/Bookdown-Data-Science-for-Beginners/csv1.csv" )
R Database
Data Relasional yang disimpan dalam format yang dinormalisasi. R connected dengan Database relasional contohnya MySql, Oracle, SQL Server. Data yang diambil lalu diubah ke Datafram untuk selanjutnya di olah atau dianalisis ataupun juga dimanipulasi.
Menambang Data Web
WebScraping Data adalah dengan menggunakan Bot untuk mengekstrak data dari Website dengan mengekstrak HTML Pengikisan data ini secara tidak langsung adalah mereplika atau menduplikat konten website yang kita pilih.
LS0tDQp0aXRsZTogIkFsZ29yaXRtYSAmIFN0cnVrdHVyIERhdGEiDQpzdWJ0aXRsZTogIn4gQW50YXJtdWthIERhdGEgfiINCmF1dGhvcjogIkZlcmRpbmFuZCBOYXRoYW5pZWwgV2lkamF5YSAiDQpkYXRlOiAgImByIGZvcm1hdChTeXMuRGF0ZSgpLCAnJUIgJWQsICVZJylgIg0Kb3V0cHV0Og0KICBybWRmb3JtYXRzOjpyb2JvYm9vazogICAjIGh0dHBzOi8vZ2l0aHViLmNvbS9qdWJhL3JtZGZvcm1hdHMNCiAgICBzZWxmX2NvbnRhaW5lZDogdHJ1ZQ0KICAgIHRodW1ibmFpbHM6IHRydWUNCiAgICBsaWdodGJveDogdHJ1ZQ0KICAgIGdhbGxlcnk6IHRydWUNCiAgICBsaWJfZGlyOiBsaWJzDQogICAgZGZfcHJpbnQ6ICJwYWdlZCINCiAgICBjb2RlX2ZvbGRpbmc6ICJzaG93Ig0KICAgIGNvZGVfZG93bmxvYWQ6IHllcw0KICAgIGNzczogInN0eWxlLmNzcyINCg0KLS0tDQoNCmBgYHtyIGluY2x1ZGU9RkFMU0V9DQprbml0cjo6b3B0c19jaHVuayRzZXQoY2xhc3Muc291cmNlID0gIm5vY29weSIsDQogICAgICAgICAgICAgICAgICAgICAgY2xhc3Mub3V0cHV0ID0gIm5vY29weSIsDQogICAgICAgICAgICAgICAgICAgICAgbWVzc2FnZSA9IEYsDQogICAgICAgICAgICAgICAgICAgICAgd2FybmluZyA9IEYpDQoNCmxpYnJhcnkocmV0aWN1bGF0ZSkNCmxpYnJhcnkoUmNwcCkNCg0KYGBgDQoNCjxicj4NCg0KPGltZyBzdHlsZT0iZmxvYXQ6IHJpZ2h0OyBtYXJnaW46IC01MHB4IDUwcHggMHB4IDUwcHg7IHdpZHRoOjMwJSIgc3JjPSJmb3RvLmpwZyIvPiANCg0KfA0KOi0tLS0gfDotLS0tDQoqKktvbnRhayoqfCAqKjogJFxkb3duYXJyb3ckKioNCkVtYWlsfCBmZXJkaW5hbmQud2lkamF5YUBzdHVkZW50Lm1hdGFuYXVuaXZlcnNpdHkuYWMuaWQNCkluc3RhZ3JhbSB8IGh0dHBzOi8vd3d3Lmluc3RhZ3JhbS5jb20vZmVfbncvIA0KUlB1YnMgIHwgaHR0cHM6Ly9ycHVicy5jb20vZmVyZG53LyANCg0KKioqDQoNCiMgQ1NWIHsudGFic2V0IC50YWJzZXQtcGlsbHN9DQoNCmBgYHtyfQ0KZ2V0d2QoKSAjTWVuZ2V0YWh1aSBESXJla3RvcmkgS2VyamEgYXRhdSB0ZW1wYXQgbWVuZ2FtYmlsIGZpbGUgeWFuZyBha2FuIGRpIGlucHV0IA0KYGBgDQoNCiMjIENhcmEgSQ0KDQpgYGB7cn0NCnNldHdkKGdldHdkKCkpICNTZXQgbG9rYXNpIGRpbWFuYSBmaWxlIGFrYW4gZGlhbWJpbCAoRGlyZWt0b3J5IEtlcmphKQ0KDQpuZiA9IHJlYWQuY3N2KCJpbnB1dC9pbnB1dDEuY3N2Iiwgc2VwID0gIiwiICkgI0Zvcm1hdCBwZW1pc2FoIGtvbWEgDQpuciA9ICByZWFkLmNzdigiaW5wdXQvaW5wdXQyLmNzdiIsIHNlcCA9ICI7IiApICMgRm9ybWF0IFBlbWlzYWhueWEgVGl0aWtrb21hIA0KYGBgDQoNCmBgYHtyfQ0KcHJpbnQobmYpICNDb250b2ggSGFzaWwgSW1wb3J0DQpgYGANCmBgYHtyfQ0KIyBFeHBvcnQoc2F2ZSkga2UgQ29tcHV0ZXINCg0Kd3JpdGUuY3N2KG5mLCAib3V0cHV0L25mZXhwLmNzdiIsIHJvdy5uYW1lcyA9IEYpDQp3cml0ZS5jc3YobnIsICJvdXRwdXQvbnJleHAuY3N2Iiwgcm93Lm5hbWVzID0gRikNCg0KYGBgDQoNCg0KIyMgQ2FyYSAyDQpEZW5nYW4gS29uZWtzaSBzZWNhcmEgYXV0b21hdGljIHBhZGEgRElyZWN0b3J5DQoNCmBgYHtyfQ0KKHdkPSBnZXR3ZCgpKSAgI01lbnNldHRpbmcgZGlyZWN0b3J5DQppZighaXMubnVsbCh3ZCkpIHNldHdkKHdkKQ0KYGBgDQoNCmBgYHtyfQ0KI0ltcG9ydCBEYXRhIA0KcGFyaXMgPSByZWFkLmNzdihmaWxlLnBhdGgod2QsICJpbnB1dCIsICJpbnB1dDEuY3N2IikpDQp0b2t5byA9IHJlYWQuY3N2KGZpbGUucGF0aCh3ZCwgImlucHV0IiwgImlucHV0Mi5jc3YiKSkNCmBgYA0KYGBge3J9DQojRXhwb3J0IERhdGENCndyaXRlLmNzdihwYXJpcywgZmlsZS5wYXRoKHdkLCAib3V0cHV0IiwgJ291dHB1dDEnKSkNCndyaXRlLmNzdih0b2t5bywgZmlsZS5wYXRoKHdkLCAib3V0cHV0IiwgJ291dHB1dDInKSkNCmBgYA0KDQojIyBDYXJhIDMNCk5vIERpcmVjdG9yeSBOZWVkZWQsIGxhbmdzdW5nIG1lbWlsaWggZmlsZSB1bnR1ayBkaWltcG9ydA0KYGBge3J9DQpiZXJsaW4gPSByZWFkLmNzdihmaWxlLmNob29zZSgpKSAjTWVtaWxpaCBkYXRhIGRhcmkgc3RvcmFnZSBsb2NhbCBjb21wdXRlcg0KYGBgDQoNCg0KIyBFeGNlbCANCg0KYGBge3J9DQpwYWNtYW4gOjogcF9sb2FkKHJlYWR4bCx3cml0ZXhsKSAjTG9hZCBwYWNrYWdlIHJlYWR4bCBkYW4gd3JpdGV4bA0KYGBgDQpgYGB7cn0NCiNJbXBvcnQNCmxvbmRvbiA9IHJlYWRfZXhjZWwoJ2lucHV0L2lucHV0NC54bHMnKSAjSW1wb3J0IGZvcm1hdCB4bHMgKEV4Y2VsIDIwMDMga2ViYXdhaCkNCm9zbG8gID0gcmVhZF9leGNlbCgnaW5wdXQvaW5wdXQzLnhsc3gnLCBzaGVldCA9IDEpICNJbXBvcnQgZm9ybWF0IHhscyAoRXhjZWwgMjAwMyBrZWF0YXMpDQoNCiNFeHBvcnQNCndyaXRlX3hsc3gobG9uZG9uLCAib3V0cHV0L291dHB1dDMueGxzeCIpDQp3cml0ZV94bHN4KG9zbG8sICJvdXRwdXQvb3V0cHV0NC54bHN4IikNCg0KYGBgDQoNCiMgVFhUICYgUkRTDQpUWFQgRGFuIFJEUyBtZW1pbGlraSBmaWxlIGxlYmloIGtlY2lsIGRlbmdhbiBiZW50dWsgeWFuZyBoYW1waXIgc2FtYSBkZW5nYW4gRXhjZWwsIG1lbXBlcmNlcGF0IHByb3NlcyBpbXBvcnQgZXhwb3J0DQoNCmBgYHtyfQ0Kc2V0d2QoZ2V0d2QoKSkNCg0KIyBJbXBvcnQNCmthcmluYSA9IHJlYWQudGFibGUoImlucHV0L2lucHV0NS50eHQiKSAjIEZvcm1hdCBUWFQgTm90ZXBhZA0Kd2ludGVyID0gc291cmNlICgiaW5wdXQvaW5wdXQ2LlJkbXBkIikgIyBGb3JtYXQgVHh0IFJkbXBkDQpnaXNlbGxlID0gcmVhZFJEUygnaW5wdXQvaW5wdXQ3LnJkcycpICNSRFMgQmluYXJ5DQpuaW5nMiA9IHJlYWRSRFMoJ2lucHV0L2lucHV0OC5hc2NpaScpICNBc2NpaSBCaW5hcnkNCg0KDQpgYGANCg0KYGBge3J9DQojRVhwb3J0DQp3cml0ZS50YWJsZShrYXJpbmEsICJvdXRwdXQvb3V0cHV0NS50eHQiKSAjIEZvcm1hdCBUWFQgTm90ZXBhZA0KZHVtcCgid2ludGVyIiwgIm91dHB1dC9vdXRwdXQ2LlJkbXBkIikgIyBGb3JtYXQgVHh0IFJkbXBkDQpzYXZlUkRTKGdpc2VsbGUsICdvdXRwdXQvb3V0cHV0Ny5yZHMnKSAjUkRTIEJpbmFyeQ0Kc2F2ZVJEUyhuaW5nMiwgJ291dHB1dC9vdXRwdXQ4LmFzY2lpJywgYXNjaWk9VCkNCmBgYA0KDQojIFhNTA0KWE1MIG1lcnVwYWthbiAgYmVyYmFnaSBmb3JtYXQgZmlsZSBkYW4gZGF0YSBkaSBJbnRlcm5ldCB5YW5nIG1pcmlwIEhUTUwNCg0KYGBge3J9DQojIEluc3RhbGwgbGlicmFyeSBhdGF1IHBhY2thZ2UgeG1sLCBrdWxpZmUsIG1ldGhvZHMNCmxpYnJhcnkoIlhNTCIpDQpsaWJyYXJ5KCJrdWxpZmUiKQ0KbGlicmFyeSgibWV0aG9kcyIpDQoNCiNJbXBvcnQgRGF0YQ0Kb2tleSA9IHhtbFBhcnNlKCdpbnB1dC9pbnB1dDkueG1sJykNCg0KIyBVYmFoIEltcG9ydGVkIERhdGEgbWVuamFkaSBEYXRhZnJhbWUNCmRmeG1sID0geG1sVG9EYXRhRnJhbWUob2tleSkNCg0KI0V4cG9ydCBEYXRhDQp3cml0ZS54bWwoZGZ4bWwsICdvdXRwdXQvb3V0cHV0OS54bWwnKQ0KDQpgYGANCg0KIyBKU09ODQpKYXZhIFNjcmlwdCBPYmplY3QgTm90YXRpb24uIERpcGVybHVrYW4gcGFja2FnZSBqc29ubGl0ZSB1bnR1ayBtZW1iYWNhIGZpbGUgSlNPTg0KDQpgYGB7cn0NCmxpYnJhcnkoanNvbmxpdGUpICNMb2FkIFBhY2thZ2UganNvbmxpdGUNCg0KI0ltcG9ydCBEYXRhIA0KeG94byA9IGZyb21KU09OKCdpbnB1dC9pbnB1dDEwLmpzb24nKQ0KZGZqc29uID0gYXMuZGF0YS5mcmFtZSh4b3hvKSAjVWJhaCBrZSBEYXRhZnJhbWUNCg0KI0V4cG9ydCBEYXRhDQp3cml0ZV9qc29uKGRmanNvbiwgIm91dHB1dC9vdXRwdXQxMC5qc29uIikNCmBgYA0KDQojIEltcG9ydCBkYXRhIGRhcmkgV2ViDQpNRW5nZWtzdHJhayBkYXRhIGRhcmkgaW50ZXJuZXQga2UgUiBiaXNhIGRhcmkgYmViZXJhcGEgc2l0dXMgYXRhdSByZXBvc2l0b3J5IGxhaW5ueWENCg0KIyMgQ1NWDQpgYGB7cn0NCndlYl9jc3YgPC0gcmVhZC5jc3YoImh0dHBzOi8vZ2l0aHViLmNvbS9CYWt0aS1TaXJlZ2FyL2RhdGFzZXQvcmF3L21hc3Rlci9Cb29rZG93bi1EYXRhLVNjaWVuY2UtZm9yLUJlZ2lubmVycy9jc3YxLmNzdiIpDQojIEltcG9yIERhdGEgZGFyaSBTaXR1cyBnaXRodWINCmBgYA0KDQojIyBYTFNYDQpgYGB7cn0NCmxpYnJhcnkocmlvKSAjVW50dWsgaW1wb3IgZGF0YSBkYXJpIGdpdGh1Yg0KaW5zdGFsbF9mb3JtYXRzKCkgI1Blcmlrc2Egc3VnZ2VzdGVkIGF1dG8tcGFja2FnZQ0KYGBgDQoNCmBgYHtyfQ0Kd2ViX3hsc3ggPSByaW8gOjppbXBvcnQoImh0dHBzOi8vZ2l0aHViLmNvbS9CYWt0aS1TaXJlZ2FyL2RhdGFzZXQvcmF3L21hc3Rlci9Cb29rZG93bi1EYXRhLVNjaWVuY2UtZm9yLUJlZ2lubmVycy9jc3YxLmNzdiIpDQpgYGANCg0KIyBSIERhdGFiYXNlDQpEYXRhIFJlbGFzaW9uYWwgeWFuZyBkaXNpbXBhbiBkYWxhbSBmb3JtYXQgIHlhbmcgZGlub3JtYWxpc2FzaS4gUiBjb25uZWN0ZWQgZGVuZ2FuIERhdGFiYXNlIHJlbGFzaW9uYWwgY29udG9obnlhIE15U3FsLCBPcmFjbGUsIFNRTCBTZXJ2ZXIuIERhdGEgeWFuZyBkaWFtYmlsIGxhbHUgZGl1YmFoIGtlIERhdGFmcmFtIHVudHVrIHNlbGFuanV0bnlhIGRpIG9sYWggYXRhdSBkaWFuYWxpc2lzIGF0YXVwdW4ganVnYSBkaW1hbmlwdWxhc2kuDQoNCiMgTWVuYW1iYW5nIERhdGEgV2ViDQpXZWJTY3JhcGluZyBEYXRhIGFkYWxhaCBkZW5nYW4gbWVuZ2d1bmFrYW4gQm90IHVudHVrIG1lbmdla3N0cmFrIGRhdGEgZGFyaSBXZWJzaXRlIGRlbmdhbiBtZW5nZWtzdHJhayBIVE1MIFBlbmdpa2lzYW4gZGF0YSBpbmkgc2VjYXJhIHRpZGFrIGxhbmdzdW5nIGFkYWxhaCBtZXJlcGxpa2EgYXRhdSBtZW5kdXBsaWthdCBrb250ZW4gd2Vic2l0ZSB5YW5nIGtpdGEgcGlsaWguDQo=