python Programming Glossary: data.frame

Python Pandas: how to turn a DataFrame with “factors” into a design matrix for linear regression?

http://stackoverflow.com/questions/10196860/python-pandas-how-to-turn-a-dataframe-with-factors-into-a-design-matrix-for-l

final column in the design matrix. Thanks SetJmp python data.frame regression factors share improve this question There is..

XML to pandas dataframe

http://stackoverflow.com/questions/10947968/xml-to-pandas-dataframe

word 'x2' df DataFrame 'x1' x1list 'x2' x2list python xml data.frame pandas share improve this question Try this DataFrame.from_records..

pandas: combine two columns in a DataFrame

http://stackoverflow.com/questions/10972410/pandas-combine-two-columns-in-a-dataframe

made up bar were replaced by the values from foo . python data.frame pandas share improve this question Try this pandas.concat..

Plotting color map with zip codes in R or Python

http://stackoverflow.com/questions/1441717/plotting-color-map-with-zip-codes-in-r-or-python

zip codes in the data frame for easy retrieval labelpos data.frame do.call rbind lapply zip.map@polygons function x x@labpt names.. function x x@labpt names labelpos c x y zip.map@data data.frame zip.map@data labelpos ## plot it png file map.png ## plot colors..

How to access pandas groupby dataframe by key

http://stackoverflow.com/questions/14734533/how-to-access-pandas-groupby-dataframe-by-key

What's the built in way of doing this python group by data.frame pandas share improve this question You can use the get_group..

Pandas sort by group aggregate and column

http://stackoverflow.com/questions/14941366/pandas-sort-by-group-aggregate-and-column

False How can this be done python sorting group by data.frame pandas share improve this question Groupby A In 0 grp df.groupby..

Why are pandas merges in python faster than data.table merges in R?

http://stackoverflow.com/questions/8991709/why-are-pandas-merges-in-python-faster-than-data-table-merges-in-r

much more amenable to these kinds of operations than R's data.frame which is just a list of arrays internally . share improve this..