1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
import numpy as np
from tempfile import NamedTemporaryFile as Tmp
def load_csv_file(fname, *args, **kargs):
f = open(fname)
data = np.genfromtxt(f, delimiter=",", comments="#",
*args, **kargs)
f.close() # don't leak file handles
return data
def write_csv_file(fname, rows, header=None, width=None,
break_col=None):
if fname is None:
f = Tmp()
else:
f = open(fname, 'w')
if width:
fmt = "%%%ds" % width
else:
fmt = "%s"
if header:
f.write('#')
f.write(", ".join([fmt % str(x) for x in header]))
f.write('\n')
last_row = None
for row in rows:
# Insert extra line breaks for Gnuplot plot3d plotting whenever
# the value of break_col changes.
if not last_row is None and not break_col is None:
if last_row[break_col] != row[break_col]:
f.write('\n')
f.write(' ')
f.write(", ".join([fmt % str(x) for x in row]))
f.write('\n')
last_row = row
if fname is None:
# keep it open
f.flush()
return f
else:
f.close()
def select(keep, rows):
ok_rows = np.zeros(len(rows), dtype=bool)
for i, row in enumerate(rows):
ok_rows[i] = keep(row)
return rows[ok_rows]
|
