[R] dealing with a messy dataset
jean-philippe
jeanphilippe.fontaine at gssi.infn.it
Thu Oct 5 16:12:20 CEST 2017
dear R-users,
I am facing a quite regular and basic problem when it comes to dealing
with datasets, but I cannot find any satisfying answer so far.
I have a messy dataset of galaxies like that :
And XVIII 000214.5+450520 0.69 17 9 0.00 -8.7 26.8 6.44
6.78 < 6.65 -44 0.5 MESSIER031 0.6 1.54
PAndAS-03 000356.4+405319 0.10 17 0.00 -3.6 27.8
4.38 2.8 MESSIER031 2.8 1.75
PAndAS-04 000442.9+472142 0.05 22 0.00 -6.6 23.1
5.59 -108 2.5 MESSIER031 2.5 1.75
PAndAS-05 000524.1+435535 0.06 31 0.00 -4.5 25.6
4.75 103 2.8 MESSIER031 2.8 1.75
ESO409-015 000531.8-280553 3.00 78 23 0.00 -14.6 24.1 8.10
8.25 8.10 769 -2.0 NGC0024 -1.5 -2.05
AGC748778 000634.4+153039 0.61 70 3 0.00 -10.4 24.9 6.39
5.70 6.64 486 -1.9 NGC0253 -1.5 -2.72
And XX 000730.7+350756 0.20 33 5 0.00 -5.8 27.1 5.26
5.70 -182 2.4 MESSIER031 2.4 1.75
What I would like to do is to read this dataset, but I would like that
the space between And and XVIII is not interpreted as 2 different
columns but as the name of the galaxy in one column.
How is it possible to do so?
For instance I did this
data1<-read.table("lvg_table2.txt",skip=70,fill=T) where I used fill=T
because the rows don't have the same number of features since R splits
the name of the galaxies into 2 columns because of the space.
Best Regards, thanks in advance
Jean-Philippe Fontaine
--
Jean-Philippe Fontaine
PhD Student in Astroparticle Physics,
Gran Sasso Science Institute (GSSI),
Viale Francesco Crispi 7,
67100 L'Aquila, Italy
Mobile: +393487128593, +33615653774
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