[Tutor] Retrieving data from a text file
Debashish Saha
silideba at gmail.com
Tue Apr 9 23:23:21 CEST 2013
In the following you can see data from a ephemeris.txt file. Now I want to
retrieve several columns(say, for example the column starting with 00:00,
27.69 and 44.1) and name the array as x,y,z. What do I have to I tried this
x, y, z = numpy.loadtxt("ephemeris.txt", unpack=True)
And got this error
"ValueError: could not convert string to float: Date__(UT)__HR:MN"
Could you also help me in converting that HR:MN into minute only?
Date__(UT)__HR:MN R.A.__(a-apparent)__DEC\
**********************************************\
2013-Jan-01 00:00 * 14 31 27.69 -12 29 44.1\
2013-Jan-01 00:01 * 14 31 27.71 -12 29 44.1\
2013-Jan-01 00:02 * 14 31 27.72 -12 29 44.2\
2013-Jan-01 00:03 * 14 31 27.73 -12 29 44.2\
2013-Jan-01 00:04 * 14 31 27.75 -12 29 44.3\
2013-Jan-01 00:05 * 14 31 27.76 -12 29 44.3\
2013-Jan-01 00:06 * 14 31 27.77 -12 29 44.4\
2013-Jan-01 00:07 * 14 31 27.78 -12 29 44.4\
2013-Jan-01 00:08 * 14 31 27.80 -12 29 44.4\
2013-Jan-01 00:09 * 14 31 27.81 -12 29 44.5\p
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