Re: [R] How to remove $ (Dollar sign) from string

2012-04-22 Thread Giuseppe Marinelli
In data martedì 10 aprile 2012 13:34:13, Nevil Amos ha scritto: > How do I remove a "$" character from a string sub() and gsub() with "$" or > "\$" as pattern do not work. > > > sub("$","","ABC$DEF") > > [1] "ABC$DEF" > > > sub("\$","","ABC$DEF") > > Error: '\$' is an unrecognized escape in cha

Re: [R] Hausman test for endogeneity

2010-10-09 Thread Giuseppe Marinelli
On Saturday 09 October 2010 14:37:35 Holger Steinmetz wrote: > Dear folks, > > can anybody point me in the right direction on how to conduct a hausman > test for endogeneity in simultanous equation models? > > Best, > Holger hausman.systemfit [1] should be what you are looking for. Cheers Giusepp