Why is there a large discrepancy between the stackoverflow tag frequency and the TIOBE Index?
- by Lo Sauer
By recently looking at the TIOBE Programming Community Index (Sep 2012) I noticed the following order:
C
Java
Objective-C
C++
C#
PHP
When looking at the tag frequencies of stackoverflow however, the situation is as follows:
C#
Java
PHP
JS
Android
jquery (JS)
iphone (Objective-C)
C++
(Java takes the lead when accounting for Android tagged posts w/o a Java tag). JavaScript also likely has surpassed PHP in total numbers of programmers?
I realize the tag-frequencies may not be the best indicator, but it is likely a sufficient measure nonetheless.
What am I missing that explains this discrepancy, especially for ANSI C?