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Rating Stats for

Matthew Lundberg

Rating
1566.78 (4,478th)
Reputation
36,309 (3,118th)
Page: 1 2 3 4 5 6 ... 17
Title Δ
Conditional replacement of column values in a dataframe using R +1.03
expand data.frame to long format and increment value +0.16
In a shell script, how can you combine both `Rscript` and `Unix` co... 0.00
R- reshape2 with aggregation min function +0.17
Can the pattern argument in ls() be inverted? -1.34
Merge multiple mutually exclusive factor columns into a single column +1.28
R associative memory doesn't work as expected -0.08
RStudio Error: Unexpected Symbol (That Can't Be Found) 0.00
Merging two data frames according to row values +0.91
reshape data wide to long for multiple variables in R 0.00
Reshaping Data in a dataframe in R -0.12
In r, assigning the previous non na value +0.41
Removing '|' from object names? -0.09
Add a sign to number, except for 0, using sprintf +1.62
Select rows by criteria in another data.frame without for loop in R -0.15
Removing selected observations from a dataframe in r +0.40
Merge csv files in R +0.42
Calculating the averages of several vectors in R -0.57
Eliminate in an increasing order rows in a data frame +1.48
R how to change one of the level to NA +0.42
Result not matching. Floating point error? 0.00
R Programming: Expression Computation +1.05
Exporting a list 0.00
R loop matrix comparing whether the first column is the same as the... -2.48
apply function not changing original value 0.00
Stats on every n rows for each column +1.35
Get disjoint sets from a list in R -2.00
How can I get mean values by group? -0.07
Using aggregate to divide counts +0.21
What is the maximum integral value that can be exactly represented... 0.00
How to remove rows with all zeros in R without getting Error in row... 0.00
In R, how do I compute factors' percentage given on different v... +1.23
Matrix Column Multiplication in R 0.00
Spectral decomposition (eigen) -1.01
R which statement not selecting string appropriately +1.86
Aggregating a Subset -1.76
Get elements over opposite diagonal in a matrix in R +0.11
The easiest way to give true values to a data frame? 0.00
paste(x,collapse="\n") doesn't work? (R code) 0.00
Create function in R +0.00
R: Err: only 0's may be mixed with negative subscripts +0.42
ending for loop if condition is met 0.00
How to set PATH on Windows through R "shell" command +0.77
Simple way to output list in the style "V, W, X, Y, and Z"... +0.54
when is const reference better than pass-by-value in c++11 -1.31
How can I read a target colum from multiple CSV files into 1 file a... 0.00
How to create a new variable based on two categorical variables in R? +1.98
splitting a column by factor within a data frame -1.51
Optimize prime number finder and cpu speed checker in R 0.00
"read.table" converts every '+' in a column names... 0.00