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Rating Stats for

Ronak Shah

Rating
1624.06 (999th)
Reputation
80,694 (1,021st)
Page: 1 ... 214 215 216 217 218 ... 233
Title Δ
Explicitly providing nrow and ncol to `as.matrix` does not create d... -0.63
matching columns to an ID string and assigning a new value in a new... 0.00
find the first maximum occurence in vector 0.00
Tidyverse: filtering n largest groups in grouped dataframe +0.38
How to fill a column from a data frame based on another data frame... -0.13
Why don't these two R lines produce the same output? +0.33
Add columns to a data frame by for loop 0.00
Get a header for a matrix in a certain order from another matrix +0.36
which() removes all rows if returns integer(0) -0.82
Subset data based on first occurrence of a status flag +1.47
Extracting words of a vector with names -1.61
Merging heterogeneous data.frames -1.73
ddply with which.max function 0.00
Draw qualified sample from dataframe 0.00
Remove last characters of string if string starts with pattern +1.25
adding last value to the top of the data frame. +0.51
access elements list for some values of a column -1.03
Looking for a function to return list components as a vector +0.34
Using grepl to match names that have one specific number 0.00
How can I make conditional selections using dplyr in R? +0.30
Get indices of two values that bracket zero in R +0.61
creating a group of rows and selecting the last group from the rows +0.33
creating one new vector from a list with 3 vectors in it, but elimi... 0.00
How can I separate time from character +0.36
To find difference between unique levels -1.00
For-loop to combine different variables according to a name pattern +0.35
Check if variables are in a one-to-one mapping +0.58
Keep rows with specific string and the following row -0.34
How to mask a vector given selected entries +0.79
Format year half contained in text as dates -1.00
subsetting elements of a list by elements of another list 0.00
remove lines if statements +0.36
Using R to find the start difference of two strings +0.36
Store first non-missing value in a new column -0.62
Sum all the elements in a matrix using a loop 0.00
Conditional mutate and vector 0.00
Subsetting and repetition of rows in a dataframe using R +1.40
Unique Values in list +1.66
Dataframe R, add every other row -0.15
Find the Most Recent Matching in an Array [R] +0.73
Select all the rows belong to the groups that meet several conditions -2.56
How to sort rows of a data frame based on a vector using dplyr pipe +1.48
Transform a dataframe -2.07
Obtaining the index of elements that belong to common group in R +0.34
Annualizing quarterly dividends reported over several quarters -1.28
How can I take the minimum of a sequence of multivariates? +1.47
how to calculate Average of purchases of distinct items in the sess... 0.00
Lookup value from DF column in df col names, take value for corresp... +0.37
Replace all empty lists with 0 with lapply +1.36
Creating a variable/column in the same data, for a subset of data u... +0.92