PowerTOST usage [🇷 for BE/BA]

posted by d_labes  – Berlin, Germany, 2014-02-05 10:50 (4154 d 13:16 ago) – Posting: # 12340
Views: 13,206

Dear All!

This post is a little bit off topic.
As the developer of the PowerTOST package I'm naturally interested in the question "Who (how many and from where) uses this package". Normally one can't get an answer to this question since CRAN has many mirrors and therefore a download statistic is impossible to get.

But thanks to the people developing RStudio there are now log-files of their CRAN cloud which can be used for an answer. See f.i. this blog.

I found the results interesting enough to share.
For others then me the question above translates to: "Where are people sitting around in the world who have need of power calculations / sample size estimation for bioequivalence studies and are using R for that end?".

Here the results for the three last PowerTOST versions (omitting orphans with only one download of any PowerTOST version):
Downloads via rstudio.com from 2013-06-21 to 2014-02-01.
(release of V1.1-06 to release of V1.1-10, V1.1-09 not released to the public)

   V1.1-06    V1.1-07    V1.1-08
  2013-06-21 2013-09-02 2013-12-27
AR       3        4         0   Argentina
AT       1        2         1   Austria (Helmut :smoke: only?)
AU       2        3         1   Australia
BE       5        4         2   Belgium
BJ       1        1         0   Benin
BR      14       11         4   Brazil
CA       2       12         4   Canada
CH       3        5         5   Switzerland
CN      13       18         5   China
CO       0        6         1   Colombia
CR       1        3         0   Costa Rica
CZ       2        3         3   Czech Republic
DE       8       22        13   Germany
DK       0        0         1   Denmark (:pirate:, claiming coming from Belgium?)
EC       0        2         0   Ecuador
EG       2        0         0   Egypt
ES      15       25         9   Spain
EU       0        3         2   Europe
FI       3        5         1   Finland
FR       5       18         3   France
GB       7       21         7   Great Britain
GR       3        7         0   Greece
HK       1        5         1   Hong Kong
HU       1        3         1   Hungary
IL       2        2         0   Israel
IN      18       35         4   India
IT      12       20         6   Italy
JP      35       70        20   Japan
KR      21       27         4   Korea, Republic of
LV       0        1         1   Latvia
MA       0        2         0   Morocco
MX       6        9         1   Mexico
MY       2        1         0   Malaysia
NG       2        1         0   Nigeria
NL       8        6         1   Netherlands
NO       1       11         1   Norway
PL       4        9         1   Poland
PT       0        4         0   Portugal
RO       1        1         0   Romania
RU       1       17         3   Russian Federation
SA       0        2         0   Saudi Arabia
SE       1        6         0   Sweden
SG       2        4         4   Singapore
SV       0        2         2   El Salvador
TT       1        2         0   Trinidad And Tobago
TW      35        8         3   Taiwan, Province of China
US     119      195       160   United States
UY       0        9         0   Uruguay
VN       0       15         0   Viet Nam
ZA       7        8         1   South Africa


This is naturally only one piece of the picture since it requires that the R-User also use CRAN.RStudio.com for downloading their packages. And downloading is not usage.
V1.1-08 is only 5 weeks old so users which infrequently updating their package use V1.1-07 yet. But V1.1-08 is now already outdated since V1.1-10 is on the way.

But interesting, isn't it :-D?
Some countries I hadn't expected at all!
Others surprised me with high usage (JP, US, VN) and f.i. our Indian friends with low usage in respect to the high numbers of Forum users.

Regards,

Detlew

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