複数設定の計算 multiple settings calc

Often we need to multiple calculation using different settings. For example, one may conduct EOF analysis for 10 different regions. In such a case, the following approach is efficient for program development, and relatively safe for mistakes.

１）We write a script that produces multiple directories and write setting in text file.

２）We prepare a analysis script that reads setting from the current directory．This script can be run by itself or can be called as a child script from a parent script.

３）We write a parent script that changes current directory and run the child script.

### Example of (1) (whole script)

import os.path, os

dirnames=['global', 'tropics']

latss= [ -90, -30]

latns= [ 90, 30]

for index,dirname in enumerate(dirnames):

if not os.path.exists(dirname):

os.mkdir(dirname)

# set EOF analysis region and write it out to a text file.

eof_area=[latss[index],latns[index]]

str_eof_area=str(eof_area)

out_file = open(dirname+'/eof_area.txt', 'w')

out_file.write(str_eof_area)

out_file.close()

# read-test of the setting from a text file.

in_file = open(dirname+'/eof_area.txt', 'r')

str_eof_area=in_file.read()

in_file.close()

eof_area2=[int(item) for item in str_eof_area[1:-1].split(',')]

print dirname

print eof_area

print eof_area2

### Example of (2) (only corresponding part)

in_file = open('./eof_area.txt', 'r')

str_eof_area=in_file.read()

in_file.close()

eof_area=[int(item) for item in str_eof_area[1:-1].split(',')]

### Example of (3) (whole script)

import os.path, os

dirnames=['global', 'tropics']

bdir=os.getcwd()

for index,dirname in enumerate(dirnames):

os.chdir(bdir+'/'+dirname)

os.system('ipython ../dir1_emeof_jraeof.py')