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Rating Stats for

Tho Vu

Rating
1414.45 (4,535,979th)
Reputation
84 (794,520th)
Page: 1 2 3
Title Δ
Collapse cells across several rows to a single column in a R data f... -0.83
Split characters of a column in a dataframe to insert an underscore... -0.75
Ho to extract words between two hyphens? -1.36
Date from Character and Numeric Columns in R +1.87
How to replace date column with NAs with an if condition +1.19
GSub removing all characters before first digit 0.00
Removing elements with empty character "" in string vector -2.74
Aggregating data with different categories of a column in R -3.20
Extract last component of string only if numeric in R -2.90
Regular expression to replace all superscripts in R -2.14
Extract a pattern from column and make a new one in R data frame -1.74
Convert date format from dd-mm-yyyy to dd/mm/yyyy -2.89
Convert particular numeric/int into factors in R using a colname ve... -2.09
Standardizing the date format using R +4.89
Insert dots in column names in wide data using R +1.54
Join two columns with one column -2.20
Positive Lookbehind and Lookahead to the end of string -2.11
replace a whole sentence with a string in r -1.91
How to automate renaming of columns in wide data using R -0.05
Finding partial match strings in any column in a dataframe in R +1.02
split a string with a plus sign separated in R +3.46
Loop to return number from string given conditions R +0.13
Extract text based on keywords in R +1.26
How to split column into two columns by extracting? +3.69
Transform dataframe with summarizing its column -2.21
how do I filter using dplyr for list of character strings ignoring... -0.57
Extracting many variables from a single column in R +2.00
Filtering dataset in R -2.75
paste 0 ahead of timestamp where hours is single digits to create H... +4.92
Remove non-english string from Rows: R -1.13
ggplot2: Combine/merge legends of color and shape into one 0.00
remove suffix from column names using rename_at in r +2.64
dplyr filter for cells that contain only uppercase characters -2.80
Convert Date in R from dash to slash format? -0.22
Paste leading zero in columns A and B if column A meets condition +1.37
Delete part of string based on a pattern -1.48
R sort data frame 0.00
Insert characters when a string changes its case R -0.73
How to find the range of dates for each group in a dataframe -2.87
Replace values using grepl in r with substrings -1.17
Extracting strings from links using regex in R +1.01
cannot convert character into numeric in R +4.89
sum up multiple rows by condition in R -2.69
Counting unique values using variables defined by a secondary data... -0.61
How do I calculate the mean for the data set in R Studio? -0.07
How to add leading zeros to select rows in a data frame column usin... +3.50
Match full names with reverse in R +0.12
How to assign values in one column to other columns in wide data us... -2.57
Extracting specific characters from specific column in R dataframe -0.61
Subsetting dataframe based on underscore at the end of an element&#... -3.04