def main():
opts = parse_args(sys.argv)
for (root, dirnames, filenames) in os.walk(opts['data_dir']):
filenames = filter(lambda name: name.endswith('.dat'), filenames)
break
data = [parse_file(opts['data_dir'] + '/' + filename) for filename in filenames]
delta_t1 = [float(datum['end'] - datum['start'])/(opts['comp_mhz']*1000000)
for datum in data]
delta_t2 = [float(datum['register'] - datum['start'])/(opts['comp_mhz']*1000000)
for datum in data]
result = {}
result['qemu_delta_t'] = avg(delta_t1)
result['qemu_delta_t_stddev'] = stddev(delta_t1)
result['total_delta_t'] = avg(delta_t2)
result['total_delta_t_sttdev'] = stddev(delta_t2)
result['hostname'] = socket.gethostname()
result['comp_mhz'] = opts['comp_mhz']
result['override_clean_check'] = True
result['git_rev'] = get_git_rev(result['override_clean_check'])
result_filename = opts['data_dir'] + '/' + 'summary'
f = open(result_filename,'w+')
json.dump(result, f, indent=4)
f.write("\n")
f.close()
print('Wrote summary to %s' % result_filename)
def testStddev(self):
"""
Check that stddev works as expected.
"""
self.assertAlmostEqual(stats.stddev(self.dataA), self.stddevA, 5)
self.assertAlmostEqual(stats.stddev(self.dataB), self.stddevB, 5)
return
def main():
global sample_cutoff, gpu_sample_cutoff, sample_cutoff_last
opts = parse_args(sys.argv)
sample_cutoff = opts.get('sample_cutoff', sample_cutoff)
sample_cutoff_last = opts.get('sample_cutoff_last', sample_cutoff_last)
num_runs = 1
while os.path.exists(sample_filename(opts['data_dir'], num_runs)):
num_runs += 1
num_runs -= 1
runs = []
for i in range(1,num_runs+1):
samples_file = sample_filename(opts['data_dir'], i)
samples = parse_mpstat(samples_file)
gpu_samples_file = gpu_sample_filename(opts['data_dir'], i)
gpu_samples = parse_gpu_samples(gpu_samples_file)
print(samples)
run = {}
run['avg'] = avg(samples)
run['stddev'] = stddev(samples)
if gpu_samples:
run['avg_frames'] = avg(gpu_samples)
run['stddev_frames'] = stddev(gpu_samples)
runs.append(run)
result = {}
result['sample_cutoff'] = sample_cutoff
result['sample_cutoff_last'] = sample_cutoff_last
result['gpu_sample_cutoff'] = gpu_sample_cutoff
result['git_rev'] = get_git_rev(override_clean_check=True)
result['override_clean_check'] = True
result['runs'] = runs
result['enc'] = runs[0].has_key('avg_frames')
run_avgs = [run['avg'] for run in runs]
run_stddevs = [run['stddev'] for run in runs]
result['run_avg'] = avg(run_avgs)
result['run_stddev'] = stddev(run_avgs)
result['run_var'] = max(run_stddevs)
if result['enc']:
run_avg_frames = [run['avg_frames'] for run in runs]
run_stddev_frames = [run['stddev_frames'] for run in runs]
result['run_avg_frames'] = avg(run_avg_frames)
result['run_stddev_frames'] = stddev(run_avg_frames)
result['run_var_frames'] = max(run_stddev_frames)
result_filename = opts['data_dir'] + '/' + 'summary'
f = open(result_filename, 'w+')
json.dump(result, f, indent=4)
f.write('\n')
f.close()
print('Wrote summary to %s' % result_filename)
def testOnTuples(self):
"""
Checks that methods also work on tuples.
"""
self.assertAlmostEqual(stats.mean(tuple(self.dataA)), self.meanA, 5)
self.assertAlmostEqual(stats.mean(tuple(self.dataB)), self.meanB, 5)
self.assertAlmostEqual(stats.stddev(tuple(self.dataA)), self.stddevA, 5)
self.assertAlmostEqual(stats.stddev(tuple(self.dataB)), self.stddevB, 5)
return
def testBadStddev(self):
"""
Check stddev on a list of length 0.
"""
try:
stats.stddev([])
except:
pass
else:
assert False, "Stddev didn't raise an exception on an empty list"
return
def ttest_1samp(a, popmean):
# T statistic - http://mathworld.wolfram.com/Studentst-Distribution.html
t = (stats.mean(a) - popmean) / (stats.stddev(a) / len(a)**0.5)
v = len(a) - 1.0
p = gamma((v + 1) / 2) / (
(v * pi)**0.5 * gamma(v / 2)) * (1 + t**2 / v)**(-(v + 1) / 2)
return (t, p)
def ttest_1samp(a, popmean):
t = (stats.mean(a) - popmean) / (stats.stddev(a) / len(a) ** 0.5)
v = len(a) - 1.0
p = gamma((v + 1) / 2) / ((v * pi) ** 0.5 * gamma(v / 2)) * (1 + t ** 2 / v) ** (-(v + 1) / 2)
return (
[t, None],
[p, None])
def testBasicStats(self):
"""
Test that the basic stats method works.
"""
meanA, stddevA = stats.basicStats(self.dataA)
self.assertAlmostEqual(meanA, stats.mean(self.dataA))
self.assertAlmostEqual(stddevA, stats.stddev(self.dataA))
return
def digest(train_errors, test_errors, rounds_times):
"""Create a digest of results.
Will print mean and std for all three lists, in a nicely formatted way.
Arguments:
train_errors {list} -- List of nb errors on training data
test_errors {list} -- List of nb errors on testing data
rounds_times {list} -- List of times to complete rounds
"""
print("#*#*#*#*#*#*#*")
print("Some stats accross rounds:")
print("Train error: {:.4f}% +- {:.4f}".format(100*mean(train_errors),
100*stddev(train_errors)))
print("Test error: {:.4f}% +- {:.4f}".format(100*mean(test_errors),
100*stddev(test_errors)))
print("Round times: {:.4f}s +- {:.4f}s".format(mean(rounds_times),
stddev(rounds_times)))
print("#*#*#*#*#*#*#*")
def stats_forpaper(self,exp_ghosts):
"""Get the stats for the paper"""
# Get the excludes
excludes=self.find_excludes(options,exp_ghosts)
# Loop over all ghosts
for atom in ['N','H','HA']:
values=[]
absent=[]
for tg in sorted(exp_ghosts.keys()):
for residue in sorted(exp_ghosts[tg].keys()):
if excludes.has_key(tg):
if residue in excludes[tg]:
continue
#
# Get the value
#
if exp_ghosts[tg][residue].has_key(atom):
exp_value=exp_ghosts[tg][residue][atom]
exp_error=errors[atom]
if exp_ghosts[tg][residue].has_key(atom+'_error'):
exp_error=exp_ghosts[tg][residue][atom+'_error']
#
# Deal with ranges
#
if exp_value[0]=='q' and options.use_questionable:
exp_value=exp_value[1:]
#
# Deal with ranges - we need to do this better
#
if len(exp_value.split(';'))==2:
s=[]
for val in exp_value.split(';'):
if val[0] in ['<','>']:
val=val[1:]
s.append(float(val))
exp_error=abs(s[0]-s[1])
exp_value=float(sum(s))/len(s)
if exp_value=='absent':
absent.append(residue)
else:
values.append(abs(float(exp_value)))
#
# Calculate average
#
import stats
avg=0.0
SD=0.0
if len(values)>0:
avg=stats.average(values)
SD=stats.stddev(values)
print '%2s ghost titrations: %3d, avg: %5.2f (%5.2f), %3d absent ghost titrations' %(atom,len(values),avg,SD,len(absent))
return
def graph(name, p, Width=110, Height=50, BarWidthPx=2, BarSpacePx=1):
try:
XScale = BarWidthPx + BarSpacePx
# p is [(year,fcnt)]
Width *= XScale
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, Width, Height)
cr = cairo.Context(surface)
cr.set_source_rgba(0,0,0,1)
cr.select_font_face('Verdana')
cr.set_font_size(8.0)
cnts = [cnt for year,cnt in p]
mi = stats.meani(cnts)
mval = cnts[mi]
sd = stats.stddev(cnts)
(mloi,mhii),pct = stats.range_size(cnts, 30)
# graph individual years
for i,(year,fcnt) in enumerate(p):
cr.set_source_rgba(0,0,0,.3)
x = (year - 1900) * XScale
h = max(1, fcnt / 1000)
if i >= mloi and i <= mhii:
cr.set_source_rgba(0,0,0,1)
if i == mi:
cr.set_source_rgba(1,0,0,1)
# XXX: not sure about the indentation of these...
w, = cr.text_extents(str(year))[2:3]
cr.move_to(max(0, x-w/2.), Height)
cr.show_text(str(year))
cr.stroke()
cr.rectangle(x, Height-h-7, BarWidthPx, h)
cr.fill()
cr.stroke()
# graph 80%
cr.set_source_rgba(1,0,0,0.6)
mloi,mhii = stats.range_pct(cnts, 0.80)
pctrng = mhii - mloi
cr.rectangle(mloi * XScale, Height-7, pctrng * XScale, 1)
cr.fill()
cr.stroke()
# write file
surface.write_to_png('name-dob-chart/' + name + '.png')
surface.finish()
return (pct, pctrng)
except:
sys.stderr.write("Unexpected error:%s\n" % (sys.exc_info()[0]))
raise
return (0,0)
def calculate_average(self,data):
"""Calculate the average ghost observed and the standard deviation"""
for datatype in data.keys():
for diel in data[datatype].keys():
for TG in data[datatype][diel].keys():
for residue in data[datatype][diel][TG].keys():
for nucleus in data[datatype][diel][TG][residue].keys():
try:
values=data[datatype][diel][TG][residue][nucleus]
except KeyError:
print 'Skipping %d for %s' %(diel)
continue
import stats
avg=stats.average(values)
SD=stats.stddev(values)
data[datatype][diel][TG][residue][nucleus]=[avg,SD]
return data
def write_travel_times(fileName="output.csv"):
outputFile = open(fileName, "w")
result = get_rides_fastest()
print "**** Writing results to file ****"
length = len(result.keys())
for i, key in enumerate(result.keys()):
outputFile.write(str(key[0]) + ";" + str(key[1]) + ",")
outputFile.write("%.02f" % avg(result[key]) + "," + "%.02f" % stddev(result[key]) + "," + "%.02f" % stderr(result[key]) + "," + str(len(result[key])))
# outputFile.write(",")
# outputFile.write(",".join([str(element) for element in result[key]]))
outputFile.write("\n")
if i % 400000 == 0:
progress = 100.0*i/length
if progress > 105:
break
if i > 0:
sys.stdout.write('\r')
sys.stdout.write("Progress: " + "%.01f" % progress + "%" + " completed.")
sys.stdout.flush()
sys.stdout.write("\rProgress: " + "%.01f" % 100.0 + "%" + " completed.\n")
sys.stdout.flush()
outputFile.close()
return None
def pre(lon):
mu = stats.mean(lon)
sd = stats.stddev(stats.mvue(lon, mu))
return stats.zscore(lon, mu, sd)
import sys
sys.path.append('C:\\mypython')
sys.path
#잘못된 path 지우기
sys.path.remove('C:\\mypython')
#########################################
[문제84] stats 모듈에 평균, 분산, 표준편차함수를 사용할수 있는 프로그램을 생성하세요.
>>> import stats
>>> stats.mean(1,2,3,4,5)
3.0
>>> stats.variance(1,2,3,4,5)
2.5
>>> stats.stddev(1,2,3,4,5)
1.5811388300841898
#stats에 각 함수를 포함하도록 하기
########## c:\python\stats.py 답
import math
def mean (*arg):
return sum(arg)/len(arg)
def variance(*arg):
total = 0
m = mean(*arg)
for i in arg:
total += (i-m)**2
def ttest_1samp(a, popmean):
# T statistic - http://mathworld.wolfram.com/Studentst-Distribution.html
t = (stats.mean(a) - popmean) / (stats.stddev(a) / len(a) ** 0.5)
v = len(a) - 1.0
p = gamma((v + 1) / 2) / ((v * pi) ** 0.5 * gamma(v / 2)) * (1 + t ** 2 / v) ** (-(v + 1) / 2)
return (t, p)
