frame_methods.py

from vbench.benchmark import Benchmark
from datetime import datetime

common_setup = """from pandas_vb_common import *
"""

#----------------------------------------------------------------------
# lookup

setup = common_setup + """
df = DataFrame(np.random.randn(10000, 8), columns=list('abcdefgh'))
df['foo'] = 'bar'

row_labels = list(df.index[::10])[:900]
col_labels = list(df.columns) * 100
row_labels_all = list(df.index) * len(df.columns)
col_labels_all = list(df.columns) * len(df.index)
"""

frame_fancy_lookup = Benchmark('df.lookup(row_labels, col_labels)', setup,
                               start_date=datetime(2012, 1, 12))

frame_fancy_lookup_all = Benchmark('df.lookup(row_labels_all, col_labels_all)',
                                   setup,
                                   start_date=datetime(2012, 1, 12))

#----------------------------------------------------------------------
# fillna in place

setup = common_setup + """
df = DataFrame(randn(10000, 100))
df.values[::2] = np.nan
"""

frame_fillna_inplace = Benchmark('df.fillna(0, inplace=True)', setup)