if stat[0] == input_id:
# set up station
station = utils.Station(stat[0], float(stat[1]), float(stat[2]), float(stat[3]))
break
else:
sys.exit(0)
# read attributes and qc_flags
ncdfp.read(os.path.join(NETCDF_DATA_LOCS, station.id + "_external.nc"), station, process_vars, [])
match_to_compress = utils.create_fulltimes(station, process_vars, DATASTART, DATAEND, [])
# nyears x 12 months
month_start_locs = np.array(utils.month_starts(DATASTART, DATAEND)).reshape(-1,12)
# which years
years = DATASTART.year + np.arange(month_start_locs.shape[0])
for year in range(DATASTART.year, DATAEND.year):
year_loc, = np.where(years == year)
if year != DATAEND.year - 1:
plot_range = (month_start_locs[year_loc,0], month_start_locs[year_loc+1,0])
else:
plot_range = (month_start_locs[year_loc,0], -1) # misses last hour
plot_times = utils.times_hours_to_datetime(station.time.data[plot_range[0]:plot_range[1]], DATASTART)
def rsc_annual_string_expectance(all_filtered, value_starts, value_lengths, flags, start, end, st_var, times, diagnostics = False, plots = False):
'''
Find years where have more strings than expected, but not long enough to set off test
:param array all_filtered: data filtered by all flags set so far
:param array value_starts: locations of start of strings/streaks of data
:param array value_lengths: lengths of each streak
:param array flags: array of flags to be set
:param datetime start: start of data
:param datetime end: end of data
:param bool diagnostics: do diagnostic output
:param bool plots: do plots
'''
month_starts = utils.month_starts(start,end)
month_starts = np.array(month_starts).reshape(-1,12)
year_proportions = np.zeros(month_starts.shape[0])
year_proportions.fill(st_var.mdi)
# churn through each year in turn
for y in range(month_starts.shape[0]):
if y != month_starts.shape[0] -1:
year = all_filtered[month_starts[y,0] : month_starts[y+1,0]]
else:
year = all_filtered[month_starts[y,0] :]
if len(year.compressed()) >= 200:
# if there are strings (streaks of same value) in this year
if y != month_starts.shape[0] -1:
string_starts = np.where(np.logical_and((value_starts >= month_starts[y,0]),(value_starts < month_starts[y+1,0])))
else:
string_starts = np.where(value_starts >= month_starts[y,0])
year_proportions[y] = 0
if len(string_starts[0]) >= 1:
# work out the proportion of the amount of data
year_proportions[y] = np.sum(value_lengths[string_starts[0]])/float(len(year.compressed()))
# if enough dirty years
good_years = np.where(year_proportions != st_var.mdi)
if len(good_years[0]) >= 10:
median = np.median(year_proportions[good_years])
if median < 0.005 : median = 0.005
# find the number which have proportions > 5 x median
bad_years = np.where(year_proportions > 5.*median)
if len(bad_years[0]) >= 1:
for bad in bad_years[0]:
# and flag
if bad == month_starts.shape[0]-1:
# if last year, just select all
locs, = np.where(value_starts >= month_starts[bad,0])
else:
locs, = np.where((value_starts >= month_starts[bad,0]) & (value_starts <= month_starts[bad+1,0]))
for loc in locs:
# need to account for missing values here 26/9/2014
goods, = np.where(all_filtered.mask[value_starts[loc]:] == False)
flags[value_starts[loc]+goods[:value_lengths[loc]]] = 1
if plots or diagnostics:
plot_year = all_filtered[month_starts[bad,0]:month_starts[bad+1,0]]
plot_time = times[month_starts[bad,0]:month_starts[bad+1,0]]
plot_flags = np.where(flags[month_starts[bad,0]:month_starts[bad+1,0]] == 1)[0]
rsc_diagnostics_and_plot(plot_time, plot_year, plot_flags, st_var.name, start, plots = plots)
return flags # rsc_annual_string_expectance
float(stat[3]))
break
else:
sys.exit(0)
# read attributes and qc_flags
ncdfp.read(os.path.join(NETCDF_DATA_LOCS, station.id + "_external.nc"),
station,
process_vars, [],
read_qc_flags=True)
match_to_compress = utils.create_fulltimes(station, process_vars, DATASTART,
DATAEND, [])
# nyears x 12 months
month_start_locs = np.array(utils.month_starts(DATASTART,
DATAEND)).reshape(-1, 12)
# which years
years = DATASTART.year + np.arange(month_start_locs.shape[0])
# find which year and test to plot
year_loc, = np.where(years == year)
test_loc, = np.where(qc_test == test)[0]
# and get the plot range
if year != DATAEND.year - 1:
plot_range = (month_start_locs[year_loc, 0], month_start_locs[year_loc + 1,
0])
else:
plot_range = (month_start_locs[year_loc, 0], -1) # misses last hour
def rsc_annual_string_expectance(all_filtered, value_starts, value_lengths, flags, start, end, st_var, times, diagnostics = False, plots = False):
'''
Find years where have more strings than expected, but not long enough to set off test
:param array all_filtered: data filtered by all flags set so far
:param array value_starts: locations of start of strings/streaks of data
:param array value_lengths: lengths of each streak
:param array flags: array of flags to be set
:param datetime start: start of data
:param datetime end: end of data
:param bool diagnostics: do diagnostic output
:param bool plots: do plots
'''
month_starts = utils.month_starts(start,end)
month_starts = np.array(month_starts).reshape(-1,12)
year_proportions = np.zeros(month_starts.shape[0])
year_proportions.fill(st_var.mdi)
# churn through each year in turn
for y in range(month_starts.shape[0]):
if y != month_starts.shape[0] -1:
year = all_filtered[month_starts[y,0] : month_starts[y+1,0]]
else:
year = all_filtered[month_starts[y,0] :]
if len(year.compressed()) >= 200:
# if there are strings (streaks of same value) in this year
if y != month_starts.shape[0] -1:
string_starts = np.where(np.logical_and((value_starts >= month_starts[y,0]),(value_starts < month_starts[y+1,0])))
else:
string_starts = np.where(value_starts >= month_starts[y,0])
year_proportions[y] = 0
if len(string_starts[0]) >= 1:
# work out the proportion of the amount of data
year_proportions[y] = np.sum(value_lengths[string_starts[0]])/float(len(year.compressed()))
# if enough dirty years
good_years = np.where(year_proportions != st_var.mdi)
if len(good_years[0]) >= 10:
median = np.median(year_proportions[good_years])
if median < 0.005 : median = 0.005
# find the number which have proportions > 5 x median
bad_years = np.where(year_proportions > 5.*median)
if len(bad_years[0]) >= 1:
for bad in bad_years[0]:
# and flag
if bad == month_starts.shape[0]-1:
# if last year, just select all
locs, = np.where(value_starts >= month_starts[bad,0])
else:
locs, = np.where((value_starts >= month_starts[bad,0]) & (value_starts <= month_starts[bad+1,0]))
for loc in locs:
# need to account for missing values here 26/9/2014
goods, = np.where(all_filtered.mask[value_starts[loc]:] == False)
flags[value_starts[loc]+goods[:value_lengths[loc]]] = 1
if plots or diagnostics:
plot_year = all_filtered[month_starts[bad,0]:month_starts[bad+1,0]]
plot_time = times[month_starts[bad,0]:month_starts[bad+1,0]]
plot_flags = np.where(flags[month_starts[bad,0]:month_starts[bad+1,0]] == 1)[0]
rsc_diagnostics_and_plot(plot_time, plot_year, plot_flags, st_var.name, start, plots = plots)
return flags # rsc_annual_string_expectance
