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NelsonGon

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1478.50 (4,502,006th) 		Reputation
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Title Δ
How to estimate mean and st.dev in each row by selected columns? +0.62
Code inside a function works, but the function itself doesn't -0.41
Using group and backreference in regex in R - stringr::str_replace +1.61
How to convert a string factor into Date? +0.30
How to grep strings that matches two (or more) variables in R +2.18
Is there an R function for transforming entire df into lower? -1.35
When do you use warning(msg)? -0.56
How to cut a datetime and remain the time part only +1.27
How to use grep to search for strings in a loop +0.58
How do I write a function to convert a character vector into a char... -0.96
How to extract specific number from a string in R -1.20
Make dates to start from the same day in r +0.45
Convert Monthly Dates in R 0.00
Using optional arguments in R function -0.41
How to bind rows without losing those with character(0)? +0.46
How to avoid namespace ambiguity for user defined functions 0.00
Transforming an output list with multiple columns into a table in R 0.00
Collapsing group of strings into one string using an if statement w... +0.93
Re-order data of CSV file in R +0.59
How to construct a confusion matrix when cross-validating with k-NN... 0.00
Replace strings with values across multiple columns at once +1.46
How do I count the number of strings in a data frame regardless of... -0.76
Why is a value a vector? 0.00
Muliplying Elements of a Vector one more each time 0.00
install_github("riv","tomasgreif") Error in par... 0.00
Extracting only numeric parts of a string column with apply and sub... +0.89
Selecting rows matching a time pattern in R +0.57
Check if string equals dataframe element -0.16
CSV File Histogram Generator : 'x' must be numeric 0.00
spliting month/year strings in r by `-` +0.92
Split string column into 2 columns, one numeric, and the other a date +0.95
R split string based on conditions 0.00
Map start position in a vector to stop position in another vector +0.68
Dynamic Regression Models in data.table - -0.35
append column values to another column -0.28
Use one column to cover another column and adopt another column val... +2.06
Deleting rows of repetitive recordings from RFID data set -1.30
I want to remove text before first <br/> -0.41
How to export list of lists with different sizes in r 0.00
How to assign data frame column classes based on column names? -0.87
Add a new element (tag) to a list in R +1.96
not able to print in R markdown 0.00
ggplot geom_boxplot color and group variables -0.40
Return value between two characters in a string -1.21
Find number of occurrences in different variables -0.19
Correct syntax to filter or select rows from a data frame using a f... -0.46
how to count the number of rows of specific column that has specifi... +1.12
Find nested substrings that match a pattern in a string -0.65
Problems importing functions with @importFrom pkg fun +0.75
How do I loop through column names to compute statistics? +0.97