. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 10.5 Dispatching to instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 10.6 Flexible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 13.3 Time series-related instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 13.4 Up- and downsampling sort_index (GH92, PR362) • Added fast get_value and put_value methods to DataFrame (GH360) • Added cov instance methods to Series and DataFrame (GH194, PR362) • Added kind=’bar’ option to DataFrame.plot (PR348)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 10.5 Dispatching to instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 10.6 Flexible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 13.3 Time series-related instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 13.4 Up- and downsampling sort_index (GH92, PR362) • Added fast get_value and put_value methods to DataFrame (GH360) • Added cov instance methods to Series and DataFrame (GH194, PR362) • Added kind=’bar’ option to DataFrame.plot (PR348)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 10.5 Dispatching to instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 10.6 Flexible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 13.3 Time series-related instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161 13.4 Up- and downsampling sort_index (GH92, PR362) • Added fast get_value and put_value methods to DataFrame (GH360) • Added cov instance methods to Series and DataFrame (GH194, PR362) • Added kind=’bar’ option to DataFrame.plot (PR348)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 12.6 Dispatching to instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251 12.7 Flexible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295 15.6 Time series-related instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 15.7 Up- and downsampling (lxml was faster). – New instance variables for calls and puts are automatically created when a method that creates them is called. This works for current month where the instance variables are simply calls

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334 13.6 Dispatching to instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335 13.7 Flexible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388 16.6 Time series-related instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393 16.7 Up- and downsampling will close that instance of the HDFStore but will only close the actual file if the ref count (by PyTables) w.r.t. all of the open handles are 0. Essentially you have a local instance of HDFStore referenced

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364 13.6 Dispatching to instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366 13.7 Flexible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 424 16.6 Time series-related instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 433 16.7 Up- and downsampling will close that instance of the HDFStore but will only close the actual file if the ref count (by PyTables) w.r.t. all of the open handles are 0. Essentially you have a local instance of HDFStore referenced

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449 16.7 Dispatching to instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450 16.8 Flexible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 512 19.6 Time series-related instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 521 19.7 Up- and downsampling data for the next expiry after the given date is returned. Option data frames are now saved on the instance as callsYYMMDD or putsYYMMDD. Previously they were saved as callsMMYY and putsMMYY. The next expiry

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438 16.6 Dispatching to instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440 16.7 Flexible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 502 19.6 Time series-related instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 511 19.7 Up- and downsampling data for the next expiry after the given date is returned. Option data frames are now saved on the instance as callsYYMMDD or putsYYMMDD. Previously they were saved as callsMMYY and putsMMYY. The next expiry

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 771 16.7 Dispatching to instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 773 16.8 Flexible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 871 19.9 Time Series-Related Instance Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 874 19.9.1 Shifting / relationship between column operations and attribute access on DataFrame instances (GH7175). One specific instance of this confusion is attempting to create a new column by setting an attribute on the DataFrame:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533 17.7 Dispatching to instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 534 17.8 Flexible . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 602 iv 20.7 Time series-related instance methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 614 20.8 Resampling now accept multiplied freq. Also, Period.freq and PeriodIndex.freq are now stored as a DateOffset instance like DatetimeIndex, and not as str (GH7811) A multiplied freq represents a span of corresponding