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Rating Stats for

Roman Pekar

Rating
1553.33 (7,028th)
Reputation
74,450 (1,126th)
Page: 1 ... 7 8 9 10 11 ... 34
Title Δ
Diff on pandas dataframe with more than one column 0.00
SQL MIN Datetime based on first occuranceof a value in another column -1.02
Applying function with multiple arguments to create a new pandas co... +1.08
Add a column that increments when another column changes 0.00
Setting pandas conditions for columns by row, Python 2.7 0.00
How to generate a bar chart of occurrences per month from a pandas... -0.11
Changing certain values in multiple columns of a pandas DataFrame a... -2.03
Is it possible to add several columns at once to a pandas DataFrame? +0.35
Pandas: Create a dataframe with k columns of n1,n2,n3 etc. random s... -1.45
Postgresql ORDER BY spaces +2.28
Maximum count - PostgreSQL +0.35
How to generate sequence in postgresql -0.54
Working with missing data 0.00
TSQL for XML Path Grouping +0.39
SQL aggregate and other fields showing in query 0.00
how to append every row of pandas dataframe to every row of another... 0.00
SQL convert multi level xml with attribute into table -0.11
Count the number of matched element in pandas +0.39
Using Regular expressions with Numeric value +0.15
Add a date offset to a Pandas date index 0.00
SQL Set-Comparision Operators ANY and IN difference +0.37
How to use a sql table-valued parameter to filter results? 0.00
Extract row with maximum value in a group pandas dataframe -2.49
Numbering of unique combinations of columns 0.00
Query XML Node Value by Node Attribute 0.00
how to replace elements in a column using pandas +1.57
Using the crosstab() function while appending to the column names &... +0.39
SQL group by with ungrouped columns 0.00
Align two time series data sets on an hourly basis (Python, Pandas) 0.00
Find XML Elements Name in SQL 0.00
UPDATE statement and WITH clause +1.76
Postgresql select people you may know orderded by number of mutual... -0.31
Memoize a costly computation of a data frame 0.00
python pandas frequency table 0.00
Strange Behaviour of Missing Values when drawn from a DataFrame/Ser... 0.00
Applying a lamda function to a column got failed in pandas -1.72
Postgresql function return multiple rows -0.21
How to assign a list to existing column of Pandas Data Frame? 0.00
Comparison and join of two different data frames with strings? -0.10
PL/pgSQL function is not working properly 0.00
Convert string date variable to datetime.datetime date variable in... -0.12
How to declare variable with result of query? -0.92
Iterating w/ Pandas DataFrame and Changing Values 0.00
SQL Server Split one column into multiple columns 0.00
how to retrieve all data from joining table using parent key +0.26
SQL Server 2008 WHERE clause with CASE / WHEN and NULL value 0.00
Combine first two entries in each column as the header when reading... +0.39
python: make pandas dataframe column headers all lowercase 0.00
Postgresql nested aggregate functions -0.13
what is the best way to find substring in a string with its frequen... +1.34