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Señor O

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1513.12 (52,266th) 		Reputation
13,905 (10,301st)
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Title Δ
most efficient way to find differences? -2.54
Shading (or alpha) boxplots by number of datapoints with ggplot2 in R -3.06
ggplot: color,fill and size in geom_point 0.00
Operations on a big data frame 0.00
fast subsetting in data.table in R -2.58
Reading values in ts() function R +4.20
Compute mean across intervals of rows -1.85
Not able to use parts of a data.table 0.00
r Error in sqliteExecStatement(con, statement, bind.data) : RS-DBI... 0.00
Extracting block of m rows at regular interval from large dataset -1.33
sapply() Returning Surprising Result - R 0.00
How to create dataframe subset of the one patient observation with... +1.95
Which or Apply function in R +3.27
Select columns in matrix corresponding to rows 0.00
closing unused RODBC handle 0.00
How can I drop unused levels from a data frame? +4.54
Compute mean in R dependent on specific value in another variable 0.00
ggplot scale gradient color in R 0.00
Calculate e.g. a mean in a list with multi-column data.frames -2.42
R ggplot bar chart 0.00
How to get the levels number in R? -3.44
How can I take select rows in matrix from vector in R 0.00
Creating a weekend dummy variable +0.89
Searching for a vector in a list 0.00
exclude rows which contain all 0's -1.33
ggplot How to scatter plot one column and line plot another +0.13
Legend with rainbow colours R 0.00
R: Transform multiple variables to ordered factors using same ifels... -3.56
in R programming, concerning on inverse matrix and its multiplication -2.05
Unique tuples in R with rle -2.84
Optimization of a function of 2 parameters -3.43
R getting substrings and regular expressions? -1.43
Select column 2 to last column in R 0.00
Returning an array in R 0.00
Error .. missing value where TRUE/FALSE needed +4.21
Putting output in R into excel +4.91
Converting a n by m dataframe into a 1 by n*m dataframe in R -3.55
Using subset in R but got one particular subset with 0 rows 0.00
Color/fill one point differently in a scatterplot -3.97
percent correct for N trials at each intensity in R +3.34
Multiple independent correlations (Pearson) with R 0.00
"Bin" continuous values in ggplot2 based on criteria to o... +4.53
How to match 1 column to 2 columns? +4.21
How do I compare a vector value in a dataframe to a constant in R? +4.26
Problems with nonlinear least square fit nls non-numeric argument w... +2.49
Filling specific duplicated values within the rows of a dataframe w... -1.24
Normalizing columns of matrix between -1 and 1 -3.68
Is the Observation unique within a specific time frame +0.62
compare two data fames items in R +4.36
How to skip an error in a loop -0.36