python Programming Glossary: df

http://stackoverflow.com/questions/11346283/renaming-columns-in-pandas

this question Just assign it to the .columns attribute df pd.DataFrame ' a' 1 2 ' b' 10 20 df.columns 'a' 'b' df a b 0.. the .columns attribute df pd.DataFrame ' a' 1 2 ' b' 10 20 df.columns 'a' 'b' df a b 0 1 10 1 2 20 share improve this answer..

How to insert pandas dataframe via mysqldb into database?

http://stackoverflow.com/questions/16476413/how-to-insert-pandas-dataframe-via-mysqldb-into-database

to 'mysql' means you can write to mysql sql.write_frame df con con name 'table_name_for_df' if_exists 'replace' flavor.. to mysql sql.write_frame df con con name 'table_name_for_df' if_exists 'replace' flavor 'mysql' The argument if_exists..

Read Specific Columns from csv file with Python csv

http://stackoverflow.com/questions/16503560/read-specific-columns-from-csv-file-with-python-csv

save an entire column into a variable import pandas as pd df pd.read_csv csv_file saved_column df.column_name #you can also.. import pandas as pd df pd.read_csv csv_file saved_column df.column_name #you can also use df 'column_name' so if you wanted.. csv_file saved_column df.column_name #you can also use df 'column_name' so if you wanted to save all of the info in your..

pandas: How do I split text in a column into multiple columns?

http://stackoverflow.com/questions/17116814/pandas-how-do-i-split-text-in-a-column-into-multiple-columns

the Seatblocks by space and gives each its own row. In 43 df Out 43 CustNum CustomerName ItemQty Item Seatblocks ItemExt.. Lennon John 25 F01 1 13 36 1 12 1 13 37 1 13 300 In 44 s df 'Seatblocks' .apply lambda x Series x.split ' ' .stack In 45.. .stack In 45 s.index s.index.droplevel 1 # to line up with df's index In 46 s.name 'Seatblocks' # needs a name to join In..

Finding smallest float in file then printing that and line above it

http://stackoverflow.com/questions/17516639/finding-smallest-float-in-file-then-printing-that-and-line-above-it

two values. I have no idea what I'm doing. I've tried df open 'filepath' for line in df df1 line.split df2 min df1 Which.. what I'm doing. I've tried df open 'filepath' for line in df df1 line.split df2 min df1 Which is my attempt at at least trying.. I'm doing. I've tried df open 'filepath' for line in df df1 line.split df2 min df1 Which is my attempt at at least trying..

Simple implementation of N-Gram, tf-idf and Cosine similarity in Python

http://stackoverflow.com/questions/2380394/simple-implementation-of-n-gram-tf-idf-and-cosine-similarity-in-python

implementation of N Gram tf idf and Cosine similarity in Python I need to compare documents.. grams to use along with a simple implementation of tf idf and Cosine similarity. Is there any program that can do this.. writing this from scratch python document n gram tf idf vsm share improve this question Check out NLTK package http..

Sqlite3, OperationalError: unable to open database file

http://stackoverflow.com/questions/4636970/sqlite3-operationalerror-unable-to-open-database-file

as Is the disk containing tmp full You're on Unix so use df tmp to find out. Does the tmp cer directory have 㙟dd permissions..

Cross-platform space remaining on volume using python

http://stackoverflow.com/questions/51658/cross-platform-space-remaining-on-volume-using-python

currently parsing the output of the various system calls df dir to accomplish this is there a better way python windows..

selecting across multiple columns with python pandas?

http://stackoverflow.com/questions/8916302/selecting-across-multiple-columns-with-python-pandas

multiple columns with python pandas I have a dataframe df in pandas that was built using pandas.read_table from a csv.. dataframe where column colA is greater than 10 for example df_greater_than10 df df colA 10 But what if I wanted a filter like.. colA is greater than 10 for example df_greater_than10 df df colA 10 But what if I wanted a filter like select the slice..

Chi-Squared test in Python

http://stackoverflow.com/questions/9330114/chi-squared-test-in-python

test for given probabilities data c 20 20 0 0 X squared 40 df 3 p value 1.066e 08 How can I replicate this in Python I've..

Need to compare very large files around 1.5GB in python

http://stackoverflow.com/questions/16110252/need-to-compare-very-large-files-around-1-5gb-in-python

to compare very large files around 1.5GB in python DF 00000000@11111.COM FLTINT1000130394756 26JUL2010 B2C 6799.2.. Rail 00000.POO@GMAIL.COM NR251764697478 24JUN2011 B2C 2025 DF 0000650000@YAHOO.COM NF2513521438550 01JAN2013 B2C 6792 Bus.. 0000PRANNOY0000@GMAIL.COM NR251297862893 21NOV2011 B2C 212 DF 0000PRANNOY0000@YAHOO.CO.IN NF251327485543 26JUN2011 B2C 17080..

Create a Pandas dataframe with counts of items spanning a date range

http://stackoverflow.com/questions/18775052/create-a-pandas-dataframe-with-counts-of-items-spanning-a-date-range

with counts of items spanning a date range I have a DF that has two dates of interest that looks kind of like LIST_DATE..

How do you verify an RSA SHA1 signature in Python?

http://stackoverflow.com/questions/544433/how-do-you-verify-an-rsa-sha1-signature-in-python

bits encapsulates 22 30 137 SEQUENCE 25 02 129 INTEGER 00 DF 1B 82 2E 14 ED A1 FC B7 43 36 6A 27 C0 63 70 E6 CA D6 9D 41..

How to calculate a packet checksum without sending it?

http://stackoverflow.com/questions/5953371/how-to-calculate-a-packet-checksum-without-sending-it

dport 80 pak IP dst target src 100.99.98.97 ttl ttl flags DF id id len 1200 chksum 0 TCP flags S sport sport dport int dport.. IP ### version 4L ihl 5L tos 0x0 len 1200 id 32711 flags DF frag 0L ttl 64 proto tcp chksum 0x9afd src 100.99.98.97 dst..