This is BibTeX, Version 0.99d (TeX Live 2016)
Capacity: max_strings=35307, hash_size=35307, hash_prime=30011
The top-level auxiliary file: changes_since_1st_may.aux
The style file: plos2015.bst
Database file #1: library.bib
Reallocated glb_str_ptr (elt_size=4) to 20 items from 10.
Reallocated global_strs (elt_size=20001) to 20 items from 10.
Reallocated glb_str_end (elt_size=4) to 20 items from 10.
Reallocated wiz_functions (elt_size=4) to 6000 items from 3000.
`journal' is a missing field, not a string, for entry SciPyOpenSourceS:g1eMLzGE
while executing---line 1875 of file plos2015.bst
Warning--empty journal in SciPyOpenSourceS:g1eMLzGE
Warning--empty year in SciPyOpenSourceS:g1eMLzGE
`journal' is a missing field, not a string, for entry epitoolsEpidemiolo:dQp6gsqn
while executing---line 1875 of file plos2015.bst
Warning--empty journal in epitoolsEpidemiolo:dQp6gsqn
Warning--empty year in epitoolsEpidemiolo:dQp6gsqn
You've used 80 entries,
            3058 wiz_defined-function locations,
            1137 strings with 22965 characters,
and the built_in function-call counts, 153478 in all, are:
= -- 19203
> -- 1316
< -- 1
+ -- 660
- -- 329
* -- 13073
:= -- 16724
add.period$ -- 312
call.type$ -- 80
change.case$ -- 0
chr.to.int$ -- 0
cite$ -- 84
duplicate$ -- 11955
empty$ -- 14669
format.name$ -- 398
if$ -- 35477
int.to.chr$ -- 0
int.to.str$ -- 80
missing$ -- 782
newline$ -- 399
num.names$ -- 80
pop$ -- 1316
preamble$ -- 1
purify$ -- 0
quote$ -- 0
skip$ -- 1278
stack$ -- 0
substring$ -- 31463
swap$ -- 1997
text.length$ -- 1
text.prefix$ -- 0
top$ -- 0
type$ -- 0
warning$ -- 4
while$ -- 854
width$ -- 82
write$ -- 860
(There were 2 error messages)