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Rating Stats for

sindri_baldur

Rating
1543.60 (10,175th)

Reputation
8,049 (19,576th)

Page: 1 ... 7 8 9 10 11 ... 21

Title	Δ
Why does data.table::B[A] and plyr::join(A,B) return different resu...	-1.86
How to give each instance its own row in a data frame?	-0.03
rowmean and standard deviation using data.table	+0.49
How to filter a dataframe with a character vector	+0.90
Fastest way to map multiple character columns to numerical values	-1.34
Assign multiple columns by reference using character vectors in join	0.00
Split string on both sides of a number	+0.22
Convert frequency vector to logical matrix	+0.63
Adressing data.table columns based on two grep() commands in R	-1.76
Matching values by nearest POSIXct in two data frames keeping both...	0.00
Rearrange a string in R Studio	0.00
R data.table apply function to rows using columns as arguments whic...	0.00
Next Value for large dataset	0.00
R: can I update the class of a an object in a magrittr pipe?	0.00
conditional rolling average	0.00
How to calculate the frequency in each column	0.00
Wrong column on data.table merge	0.00
R: Break a data.frame according to value of column with dplyr	0.00
How shift values in rows in R (dplyr or data.table)?	0.00
How can I change a R script file to a lowercase r file extension?	0.00
How to change values in a dataframe based on another dataframe in R?	0.00
How to compute the ranking (of dates) by groups faster with data.ta...	0.00
Merging values of two rows based on conditions using data.table in R	-0.75
Remove duplicate in dataframe	0.00
R: Create empty tibble/data frame with column names coming from a v...	+0.16
reduce grouped data frame by intersecting values in each group	-1.34
Count number of dots in character string with str_count?	+1.44
Plotting average values from multiple columns in ggplot2	+1.06
Creating cumulative probability of winning in fantasy football league	0.00
Adding a prefix to certain column names	-1.08
How do I insert a "." into a specific place in a numeric...	-1.66
R data.table - sample by group with different sampling proportion	+0.50
How to extract Hyperlink address from webpage	+0.00
Sorting out counts less than 10 before plotting	0.00
How to construct an edgeliste from a list of visited places (effect...	+0.42
Regex in match \ and :	0.00
Summing the products of multiple variables per row	0.00
Group-specific variable tracking the last observation when a condit...	+2.28
Convert R function from dplyr to data.table	0.00
Overwrite a column in one dataframe with one in another dataframe i...	0.00
loop interation in R	+0.01
Assigning value to dataframe in R - for loop speed	+0.04
How to save structure of a complex list in R	0.00
Identifier as sequence starting with 1	+0.51
Joining dataframes with different dimensions and filling the gaps	-0.72
Add factors to a df by subsetting rows containing certain letters	+1.26
Generating every combination of variables from a list	-1.68
Convert simple data.table to named vector	+2.35
Searching and replacing characters with classes in R	+2.37
Filter for first 5 observations per group in tidyverse	+1.24