min - max - element-wise python functions can be usedtoo suppose you wanted to compute formatted string from each floating point value in frame you can do this with applymapin [ ]format lambda ' fx in [ ]frame applymap(formatout[ ] utah - - ohio - texas oregon - the reason for the name applymap is that series has map method for applying an element-wise functionin [ ]frame[' 'map(formatout[ ]utah - ohio texas oregon - namee sorting and ranking sorting data set by some criterion is another important built-in operation to sort lexicographically by row or column indexuse the sort_index methodwhich returns newsorted objectin [ ]obj series(range( )index=[' '' '' '' ']in [ ]obj sort_index(out[ ] with dataframeyou can sort by index on either axisin [ ]frame dataframe(np arange( reshape(( ))index=['three''one']columns=[' '' '' '' ']in [ ]frame sort_index(out[ ] one three in [ ]frame sort_index(axis= out[ ] three one essential functionality www it-ebooks info