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Rating Stats for

Alex Riley

Rating
1713.96 (93rd)
Reputation
92,593 (843rd)
Page: 1 2 3 4 5 6 ... 14
Title Δ
Vectorize large NumPy multiplication -1.29
Remove second character in a string in DataFrame +0.28
Infer nearest, smaller value in numpy array +1.39
How are variables names stored and mapped internally? 0.00
How to XOR two hex strings in Python 3? 0.00
How to combine multiple rows of strings into one using pandas? 0.00
Convert numpy array to hex bytearray 0.00
Pandas: keeping dates in order when using groupby or pivot table 0.00
Sum a list of numbers until a number X is found -0.17
Pandas - Creating a new column, the value of which increases on eac... 0.00
Element wise comparison between 1D and 2D array 0.00
How to remove last the two characters in a column that is of intege... -0.40
Multiply list of columns in pandas DataFrame +0.27
Weird results when multiplying large numpy array with itself +1.35
How to substitute NaN values of a column based on the values of ano... 0.00
Pandas idiomatic way to do a dictionary lookup 0.00
How to speed up DatetimeIndex processing? +0.28
Rearrange array [1, 2, 3, 4, 5, 6] to [1, 3, 5, 2, 4, 6] +0.74
Quick way to upsample numpy array by nearest neighbor tiling -0.38
Losing values when constructing a Series from a DataFrame column 0.00
Custom sort of a list of tuples +1.33
NumPy sum along disjoint indices +1.22
Numpy - slicing 2d row or column vector from array +1.27
Updating array values using two masks a[mask1][mask2]=value -0.68
Convert real-valued numpy array to binary array by sign -2.04
How to compute (A^B)%M when A,B,M are big numbers? +1.30
Error in gapfilling by row in Pandas 0.00
Query same time value every day in Pandas timeseries 0.00
"cross product" but raise to exponent instead of multiply 0.00
Pandas: How to convert column of string objects representing catego... 0.00
Convert dictionary to tuple with additional element inside tuple 0.00
Find the order of a differential equation in Sympy 0.00
pandas object indexes can be either string or int, how can I tell t... +0.79
How can I check if one two-dimensional NumPy array contains a speci... -0.84
Pandas unit testing: How to assert equality of NaT and NaN values? +0.28
How do I apply a regex substitution in a string column of a data fr... 0.00
List of coefficients to polynomial +1.24
How/where does pd.pivot_table store or reference the names of its i... 0.00
Merge two tables based on multiple keys in Python pandas 0.00
Keep all indexes in multilevel pandas groupby -1.96
Randomize two lists by maintaining the sequence of mapping of value... 0.00
Tuple with named elements +0.28
Getting the indices of several elements in a NumPy array at once 0.00
What is the complexity of calling of dict.keys() in Python 3? 0.00
Turn pandas DataFrame with two columns into stacked barplot 0.00
Numpy: Index 3D array with index of last axis stored in 2D array +0.83
Concatenate generators in python 3 with +-operator +1.08
Concatenate pairs of consecutive sublists in a list using Python +0.81
How does numpy.ndarray.transpose() permute the axis of n-d array? +1.27
Creating dataframe with list of dicts with np.array values +0.98