hw1

Name: [your name in Chinese or English]

Student ID: [your student ID]

cmd

Rscript hw1_yourID.R --input input1.csv --output output1.csv

Rscript hw1_yourID.R --output output1.csv --input input1.csv

Your R code should output and round the set name with maximum value of weight and height.

Read an input file

Input data will have other numeric & category columns besides weight and height.

examples = input1.csv

Output a summary file

Please follow the same format of the result.csv, i.e., round number into two digitals

example = output1.csv

Score

Please use R version 3.6.3

10 testing data

Rscript hw1_5566.R --input hw1/data/test.1.csv --output hw1/eval/test1/hw1_001.csv
Rscript hw1_5566.R --output hw1/eval/test2/hw1_002.csv --input hw1/data/test.2.csv

Correct answer gets 9 points of each testing data. Please do not set input/output in your local path or URL. Otherwise, your code will fail due to fixed path problem.

Advanced scores

• Output format without “: 2 points
• Concise file name without path: 1 point
• Concise file name without .csv extension: 1 point
• Check whether an input file exists or not: 2 points
• make a folder if an output path is specified: 2 points
• Check whether weight and height columns exists or not: 2 points

Penalty: -2 points of each problem

• Can not detect missing --input/--ouptut flag
• Arguments order cannot change
• Wrong file name
• Wrong column name
• Not round number to 2 digitals

Note

• You should write a parser by your self instead of using library.
• Please do not set working directory(setwd) in a fixed folder. For example,

d <- read.csv("D://DataScience/hw1/example/output1.csv")

• Input data will have other columns besides weight and height.