integer indexing panel data data loadingstorageand file formats reading and writing data in text format reading text files in pieces writing data out to text format manually working with delimited formats json data xml and htmlweb scraping binary data formats using hdf format reading microsoft excel files interacting with html and web apis interacting with databases storing and loading data in mongodb data wranglingcleantransformmergereshape combining and merging data sets database-style dataframe merges merging on index concatenating along an axis combining data with overlap reshaping and pivoting reshaping with hierarchical indexing pivoting "longto "wideformat data transformation removing duplicates transforming data using function or mapping replacing values renaming axis indexes discretization and binning detecting and filtering outliers permutation and random sampling computing indicator/dummy variables string manipulation string object methods regular expressions vectorized string functions in pandas exampleusda food database vi table of contents www it-ebooks info