Displaying 2 results from an estimated 2 matches for "trade_day".
2010 Jan 31
1
How to split data frame into groups by a list of factors?
Dear R users:
I am dealing a data frame x as followings:
Date trade_day IV.b IV.a
1 2003-03-02 19 0.1724818 0.1815687
2 2003-03-02 18 0.1733542 0.1763827
3 2003-03-02 19 0.1753308 0.1783653
4 2003-03-03 16 0.1751217 0.1781624
5 2003-03-03 16 0.1738580 0.1768961
6 2003-03-03 19 0.1733346 0.1763800
......
I want to spl...
2008 Aug 26
1
bug in package chron (PR#12599)
Full_Name: Zeng, zhenxing
Version: 2.7.1 (2008-06-23)
OS: windows XP
Submission from: (NULL) (158.182.1.30)
Dear Author
I have run into a trouble in using chron package
The data frame: a
date time_fut expiry_day bid ask trade_day
1 2004-09-01 09:45:00 2004-10 12860 12889 38
2 2004-09-01 09:45:01 2004-10 12885 12890 38
3 2004-09-01 09:45:04 2004-10 12883 12887 38
4 2004-09-01 09:45:05 2004-10 12878 12886 38
5 2004-09-01 09:45:06 2004-10 12881 12887 38
6 2004-09-01 09:45:08...