Question

Q. Make a vector of weights in order from the youngest person to the oldest.

What is the code here? I should get a code in R program.

	firstName	gender	age	height	weight	bmi	overWt
1	Tom	m	77	70	175	25.16238799	TRUE
2	May	f	33	64	125	21.50106395	FALSE
3	Joe	m	79	73	185	24.45884214	FALSE
4	Bob	m	47	67	156	24.4841414	FALSE
5	Sue	f	27	64	105	18.06089372	FALSE
6	Liz	f	33	68	190	28.94980625	TRUE
7	Jon	m	67	68	185	28.18796924	TRUE
8	Sal	f	52	65	124	20.67782511	FALSE
9	Tim	m	59	68	175	26.66429523	TRUE
10	Tom	m	27	71	215	30.04911241	TRUE
11	Ann	f	55	67	166	26.05363764	TRUE
12	Dan	m	24	66	140	22.64383859	FALSE
13	Art	m	46	66	150	24.26125563	FALSE
14	Zoe	f	48	62	125	22.91060301	FALSE

Answer 1

R codes and output:

> data=read.table('weight.csv',header=TRUE, sep=',')
> head(data)
firstName gender age height weight bmi overWt
1 Tom m 77 70 175 25.16239 TRUE
2 May f 33 64 125 21.50106 FALSE
3 Joe m 79 73 185 24.45884 FALSE
4 Bob m 47 67 156 24.48414 FALSE
5 Sue f 27 64 105 18.06089 FALSE
6 Liz f 33 68 190 28.94981 TRUE
> attach(data)
> data_1=data[order(age),] # this command sort data in ascending order by age
> data_1
firstName gender age height weight bmi overWt
12 Dan m 24 66 140 22.64384 FALSE
5 Sue f 27 64 105 18.06089 FALSE
10 Tom m 27 71 215 30.04911 TRUE
2 May f 33 64 125 21.50106 FALSE
6 Liz f 33 68 190 28.94981 TRUE
13 Art m 46 66 150 24.26126 FALSE
4 Bob m 47 67 156 24.48414 FALSE
14 Zoe f 48 62 125 22.91060 FALSE
8 Sal f 52 65 124 20.67783 FALSE
11 Ann f 55 67 166 26.05364 TRUE
9 Tim m 59 68 175 26.66430 TRUE
7 Jon m 67 68 185 28.18797 TRUE
1 Tom m 77 70 175 25.16239 TRUE
3 Joe m 79 73 185 24.45884 FALSE