problem with meteo datas
napolpie at tin.it
napolpie at tin.it
Thu May 3 05:08:55 EDT 2007
----Messaggio originale----
Da: napolpie at tin.it
Data: 3-mag-2007
10.02
A: <python-list at python.org>
Ogg: problem with meteo datas
Hello,
I'm Peter and I'm new in python codying and I'm using parsying
to
extract data from one meteo Arpege file.
This file is long file and
it's composed by word and number arguments like this:
GRILLE EURAT5
Coin Nord-Ouest : 46.50/ 0.50 Coin Sud-Est : 44.50/ 2.50
MODELE PA
PARAMETRE P
NIVEAU MER 0 ECHEANCE 0.0 DATE 20020304000000 NB_POINTS
25
1020.91 1020.87 1020.91 1021.05 1021.13
1020.07 1020.27 1020.49 1020.91 1021.15
1019.37
1019.65 1019.79 1020.53 1020.77
1018.73 1018.89
1019.19 1019.83 1020.81
1018.05 1018.19 1018.75
1019.55 1020.27
NIVEAU MER 0 ECHEANCE 3.0 DATE 20020304000000
NB_POINTS 25
1019.80 1019.78 1019.92 1020.18 1020.34
1018.94 1019.24 1019.54 1020.08 1020.32
1018.24
1018.64 1018.94 1019.84 1019.98
1017.48 1017.88
1018.28 1018.98 1019.98
1016.62 1017.08 1017.66
1018.26 1018.34
NIVEAU MER 0 ECHEANCE 6.0 DATE 20020304000000
NB_POINTS 25
1019.37 1019.39 1019.57 ........
........
....... .........
.......
.......
.......
....... .........
NIVEAU MER 0 ECHEANCE 48.0 DATE
20020304000000 NB_POINTS 25
1017.84 1017.46 1017.14
1016.86 1016.58
1017.28 1016.90 1016.46 1016.48
1016.34
1016.50 1016.06 1015.62 1015.90 1015.72
1015.94 1015.30 1014.78 1014.68 1014.86
1015.86
1015.10 1014.36 1014.00 1013.90
.............................
MODELE PA PARAMETRE T
NIVEAU HAUTEUR 2
ECHEANCE 0.0 DATE 20020304000000 NB_POINTS 25
1.34
1.51 1.40 0.56 -0.36
1.73 1.43
0.89 -0.16 -0.99
2.06 1.39 1.14
-0.53 -0.99
2.12 2.22 2.15 0.76
-1.16
1.67 1.45 1.40 1.26 0.28
NIVEAU
HAUTEUR 2 ECHEANCE 3.0 DATE 20020304000000 NB_POINTS 25
0.94 1.16 1.03 0.44 -0.41
0.95
0.61 0.22 .............................................
I'am at
the begginning of computation and for the moment I write this code to
extract only number data in form of a string:
from pyparsing import *
dec = Combine (Optional( "-" ) + delimitedList( Word( nums ), ".",
combine=True ))
datas = ZeroOrMore( dec )
f=file("arqal-Arpege.00",
"r")
g=file("out3", "w")
for line in f:
try:
result =
datas.
parseString (line)
add = result
add1 = ";".join
(add)
print >> g,"(",add1,")"
except ParseException, pe:
print pe
This is the output result in file g=file("out3",
"w")
( )
( )
( )
( 1020.91;1020.87;1020.91;1021.05;1021.13 )
(
1020.07;1020.27;
1020.49;1020.91;1021.15 )
( 1019.37;1019.65;1019.79;
1020.53;1020.77 )
(
1018.73;1018.89;1019.19;1019.83;1020.81 )
(
1018.05;1018.19;1018.75;
1019.55;1020.27 )
( )
( 1019.80;1019.78;
1019.92;1020.18;1020.34 )
(
1018.94;1019.24;1019.54;1020.08;1020.32 )
( 1018.24;1018.64;1018.94;
1019.84;1019.98 )
( 1017.48;1017.88;1018.28;
1018.98;1019.98 )
( 1016.62;
1017.08;1017.66;1018.26;1018.34 )
( )
(
1019.37;1019.39;1019.57;
1019.9;......;
........
.........;
1016.87)
( )
( 1017.84;
1017.46;1017.14;1016.86;1016.58 )
( 1017.28;
1016.90;1016.46;1016.48;
1016.34 )
( 1016.50;1016.06;1015.62;1015.90;
1015.72 )
( 1015.94;1015.30;
1014.78;1014.68;1014.86 )
( 1015.86;
1015.10;1014.36;1014.00;1013.90 )
So I don't have any word but the
problem is that Now I have to put in
order this numerical datas in a
type of NESTED matrix emulated by
python like a nested dictionary :
{ 'P ' : { MER 0 : [ (1020.91;
1020.87;........;1020.27 ) ;
(.........) ; ( 1019.80;1019.78;........;
1018.26;1018.34 ) ]; ......;
SOL 0 : [ ( .......);.....;(........ ) ] }
; 'T' : { SOL 0 :
[(.....;......) ; (ECHEANCE 3.0) ; (ECHEANCE 6.0) ;
(.......;........)
]; HAUTEUR 2 : [(.......;......;......) ] } }
======>>>>>>
{
'Parameter X' : { Level X : [ (predict step 3 hours
from +0 to +48
hours ) ;]} }
>>>>>> the bigger shell is fixed by
Dictionary
PARAMETER in the example is P= 'Pressure' but thre are many
of this
Temperature = T , Wind = U and V ecc... the second nested
shell is
setted by another Dictionary NIVEAU MER 0 in the example is
MER 0 =
sea level or SOL 0, but can be HAUTER 2,10 (HEIGHT 2,10 METERS)
ecc..... (soil level , 1;0 meter from soil) ecc (from French language)
and after every Level is associated with a LIST OF TUPLE: [(....);
(....);(....)] to rappresented every step hours of prediction or
expiration hours in French language: ECHEANCE XX.X = predicted hour
+3.
0 +6.0 until 48H is setted of a list of tuple [(ECHEANCE 3.0);
(ECHEANCE
6.0); (ECHEANCE XX.0);.........;(ECHEANCE 48.0)] like so:
[1019.37;
1019.39;........;1020.27 );(.........);(1019.80;
1019.78;........;
1018.26;1018.34 )] where every list is at the end the
is the datas
grill: (5 x 5 points)= 25 datas
1020.91 1020.87
1020.91
1021.05 1021.13
1020.07 1020.27 1020.49
1020.91
1021.15
1019.37 1019.65 1019.79 1020.53
1020.77
1018.73 1018.89 1019.19 1019.83 1020.81
1018.05
1018.19 1018.75 1019.55 1020.27
So I ask you
wich is the
best way to begin to code the grammar parsying to make
recognize him
the 'word' inside of the data file and put the data in
the form of
nested dictionary and list of tuple illustrated before.
In
attached
file there is one meteo arpege datas file and text of the
message in
open office file
Thanks a lot for everyone can said me
anything to
solve this, big problem (for me)!!!!
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