We analyzed data from Cran daily download data to understand the top R packages that were downloaded. Here is the list based on download data for a single day: Feb 28th 2015.

Rank

Package

No. of Downloads

1

Rcpp

1960

2

ggplot2

1785

3

digest

1709

4

reshape2

1651

5

plyr

1634

6

rJava

1577

7

stringr

1549

8

RColorBrewer

1497

9

colorspace

1372

10

manipulate

1363

11

scales

1347

12

labeling

1320

13

proto

1301

14

munsell

1291

15

gtable

1290

16

dichromat

1289

17

RCurl

1144

18

zoo

1085

19

mime

1038

20

RcppEigen

1033

21

car

978

22

bitops

960

23

quantreg

959

24

dplyr

948

25

httr

910

26

SparseM

878

27

knitr

877

28

R6

872

29

Hmisc

868

30

lme4

864

31

lattice

815

32

nloptr

783

33

minqa

782

34

pbkrtest

759

35

MASS

741

36

evaluate

738

37

survival

736

38

xlsx

722

39

markdown

703

40

jsonlite

703

41

e1071

698

42

highr

695

43

mvtnorm

692

44

xlsxjars

687

45

DBI

678

46

formatR

674

47

foreign

659

48

Formula

650

49

devtools

632

50

magrittr

618

51

caTools

590

52

yaml

587

53

nlme

585

54

xts

577

55

latticeExtra

546

56

shiny

545

57

XML

541

58

memoise

538

59

sandwich

536

60

quantmod

535

61

rpart

533

62

gtools

524

63

acepack

523

64

lazyeval

515

65

RcppArmadillo

514

66

htmltools

510

67

BH

501

68

boot

494

69

class

494

70

Matrix

490

71

brew

480

72

multcomp

479

73

cluster

469

74

assertthat

469

75

roxygen2

462

76

nnet

456

77

swirl

452

78

KernSmooth

451

79

sp

442

80

tseries

437

81

RJSONIO

436

82

xtable

434

83

TTR

433

84

mgcv

431

85

gdata

429

86

igraph

423

87

testthat

422

88

RODBC

417

89

lubridate

416

90

spatial

414

91

forecast

413

92

rgl

411

93

rstudioapi

409

94

reshape

396

95

quadprog

389

96

chron

385

97

foreach

379

98

rmarkdown

376

99

whisker

372

100

gplots

364