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ThomasIsCoding

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1498.73 (3,826,018th) 		Reputation
43 (1,121,033rd)
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Title Δ
Make a random correlation matrix semi definite positive 0.00
How do I set the step size for dnorm in R when calculating the norm... 0.00
filter rows if any of the two columns have the specified value -0.74
Any possible way to check for a condition without using any of cont... -0.28
Get the mean across list of dataframes by rows +0.14
Extract month in R -0.38
How to drop substring from variable names? -0.52
r replacing values inferior to the mean of each column in a matrix -0.74
How to integrate only a variable in multivariate function in R? 0.00
Filter observations starting with a number in an interval? -0.16
Reverse a number in R -1.03
Is there a way to take multiple means and store them in a vector in R 0.00
trouble rearranging my 2x2 matrix in a simple way in R -1.25
Is there a way to store loop outputs into a list in R -0.17
simples solution to subset max data with multiple condition passed +0.07
Merging two datasets with duplicate key values +0.60
R triangular numbers function +2.58
Having trouble adding a string to the end of a vector that's in... -0.94
Fill column based on look-up table in R -0.54
How to cut the vector into bins represented by their centres -0.60
by removing all texts inside parentheses -1.10
how to use a matrix to extract values from a dataframe? -1.23
can we create a index with unique values -1.79
How to sample 90/10 split% rows out of 2 columns -1.10
How to multiply only the odd rows of a matrix while still keeping t... -0.45
R. Selecting observations starting with +0.19
Modifying Strings to transform 1 into 01 -0.75
Generating a column with the average value of rows before and after... +0.19
R row-wise runif() between 2 columns +2.54
Finding interconnected neighbours in a 2d matrix 0.00
How to select a certain value in various rows and transfer it into... +0.84
R combining the characters of the first two rows of a data frame -1.27
How to properly ignore NA when comparing two dates? +0.59
filter() but keep groups without value -0.04
Group and subtract all rows in a dataframe -0.02
How to count entries of the same value for each individual row of a... +0.93
Solving simple dice roll and getting result in mean +0.55
Add several variables to a data frame depending on a rule from anot... -0.39
Count the length of words and cut the rows which are under a thresh... -0.24
How I can take mean for different subsets of a specific column in a... -0.50
Count repeated rows and the first non-NA appearance in a data frame -1.19
Conditional replacing of values ina a variable based on valuse in m... +1.68
Find point in dataframe where (col_1[ i ], col_2[ i ]) = (col_1[ j... -1.27
concatenation of the arrayfun output +0.07
regexp, how to match longer strings first? +0.08
Replacing NAs with zeros only in non-empty groups -0.24
R create group variable based on row order and condition -1.16
Convert list of effective dates to start and end dates -0.49
1/x + 1/y = 1/n (Matlab) 0.00
For every time id1 is within the string in id3, put the id2 part in... -0.30