Publications by Putri Angelina Windjaya - 20194920010
R Programming
1 Your Exercise In this section, you are expected to be more confident to create your own function. Here I advise you to create a function for each tasks bellow: Univariate variable (one dimension) average average <- function(x){ sum(x)/length(x) } # Use this if you're looking for mean (univar...
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RBasics
A. Creating Vectors In this section, you are expected to be able to shape data in vectors, perform basic mathematical operations, and also manipulate vectors. Exercise 1 Create a vector A containing numeric values, starting from the last 2 digits of your student id up to 30. A <- 10:30 A ## [1] 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 2...
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RBasics
1 Generate Data frame Suppose you are a data scientist, and you get a project at a start-up company, for instance Kopi Kenangan. Let’s say, you are asking to generate the collection of any possible data set from their daily sales. If I asking you: what kind of data set that you can generate?. Here, I assume you want to provide them the followin...
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Week 9 - Data Interface
1 Introduction In R, we can read data from files stored outside the R environment. We can also write data into files that will be stored and accessed by the operating system. R can read and write into various file formats like csv, excel, txt,rds, xml, json, etc. 2 Working Directory Before we start working with data (interface data), first make ...
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Visualisasi Data
Email: putriangelina865@gmail.com RPubs: https://rpubs.com/putriangelinaw/ Visualisasi Data adalah cara untuk menampilkan informasi pada data kedalam bentuk visual seperti diagram, grafik, dan peta. Visualisasi Data bisa menangani data yang kecil ataupun data yang besar, sehingga mudah dimengerti atau dipahami oleh sesama. Dan Visualisasi data ...
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UAS
Email: putriangelina865@gmail.com RPubs: https://rpubs.com/putriangelinaw/ 1 Latar Belakang library(readxl) library(dplyr) library(ggplot2) library(scales) library(glue) library(plotly) library(lubridate) library(gridExtra) library(zoo) library(treemap) Andaikan Anda adalah seorang Manajer dibidang projek Data Scince, ingin melakukan a...
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Database System-Assignment 1
Email : putriangelina865@gmail.com Instagram : https://www.instagram.com/putriangelinaw RPubs : https://rpubs.com/putriangelinaw/ 1 Sejarah Perkembangan Sistem Basis Data Ukuran, kemampuan, dan kinerja pada sistem basis data telah berkembang cukup pesat. Peningkatan kinerja ini dikarenakan adanya kemajuan teknologi, memori komputer, penyimpanan ...
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SQL Join Table
Email : putriangelina865@gmail.com Instagram : https://www.instagram.com/putriangelinaw RPubs : https://rpubs.com/putriangelinaw/ 1 Needed Packages library(DBI) library(RMySQL) library(DT) library(readxl) 2 Connect To SQL conn <- dbConnect(MySQL(), user="root", ...
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Case Studies
Email : putriangelina865@gmail.com Instagram : https://www.instagram.com/putriangelinaw RPubs : https://rpubs.com/putriangelinaw/ 1 Pengenalan Dampak dari bagaimana satu dolar dihabiskan untuk upaya pemasaran organisasi pada penjualannya adalah sesuatu yang harus dipertimbangkan oleh semua organi...
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Tugas Ekonometrik
Email : putriangelina865@gmail.com Instagram : https://www.instagram.com/putriangelinaw RPubs : https://rpubs.com/putriangelinaw/ 1 Pengenalan Seperti yang sudah saya sebutkan sebelumnya, Model Regresi digunakan untuk menjelaskan hubungan antara variabel dengan menyesuaikan garis dengan data obse...
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