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Rating Stats for

Joshua Ulrich

Rating
1638.69 (725th) 		Reputation
144,356 (398th)
Page: 1 ... 24 25 26 27 28 ... 35
Title Δ
Interpretation of step size parameter in DEoptim package 0.00
How to make this loop more efficient? 0.00
How do I apply a multi-parameter function in R? -0.38
How to subset vector based on string character? +0.99
How do I map a contingency table to another, by applying a function... -0.49
Using quantmod periodReturn with an index of variables in the envir... +0.38
Breaking loop when "warnings()" appear in R -0.32
function with multiple outputs +1.79
Finding the most recent observation earlier than a certain timestam... 0.00
Aggregate in R by week taking long time +2.54
How to remove all the NA from a Vector? -0.98
most efficient R cosine calculation 0.00
Making R return an error for accessing a global -0.45
How to search an environment using ls() inside a function? +0.52
Continue executing after browser() 0.00
DEOptim access violation / crash 0.00
Elegant way to get the colclasses of a data.frame +1.64
Pass R variable to RODBC's sqlQuery with multiple entries? +0.39
Extract date elements from POSIXlt and put into data frame in R +1.11
No visible binding for global variable Note in R CMD check +0.01
Sampling loop from vector -0.98
Get custom attributes on an R SEXP object when using .Call 0.00
Use hours on the x-axis when plotting with zoo in R -1.76
Install R package from source, without changing PATH (Windows) 0.00
R: quit !incomplete.cases() function without loosing workspace -2.43
Get Google or Yahoo API live option price -0.10
Drawing a Square Line Chart using quantmod 0.00
R zoo plot multiple years of data overlapping -1.29
How to add SD to VWAP from TTR? 0.00
How to properly omit NAs from a nested list? -0.17
Removing rows from R data frame +0.64
Count factors occurring in group in R -1.27
R data frame - row number increases -0.40
Mixing other languages with R -0.63
Parse timestamp with a.m./p.m 0.00
Finding the mean of all Duplicates -1.40
Finding the indexes of multiple/overlapping matching substrings 0.00
Fast counting of characters in character vector +0.23
Finding ALL duplicate rows, including "elements with smaller s... +1.61
Calculate cumulative sums of certain values +1.31
How to change discrete ratio data into ordinal data in R? -1.51
R grep NAs from vector -0.23
Simple R task: divide specified columns by 1000 at specified rows -1.49
Calculate within categories: Equivalent of R's ddply in Python? -0.61
What is the replacement for R CMD mydir build --binary? -2.06
R and Brew:syntax issue 0.00
apply strsplit to specific column in a data.frame +0.47
Convenience function for # elements in data.frame, matrix, vector? +0.83
How Can I Optimize the Performance of My R Code? -1.99
Converting XTS periodicity on non OHLC +0.37