StackRating

An Elo-based rating system for Stack Overflow
Home   |   About   |   Stats and Analysis   |   Get a Badge
Rating Stats for

Joshua Ulrich

Rating
1638.69 (725th) 		Reputation
144,356 (398th)
Page: 1 ... 9 10 11 12 13 ... 35
Title Δ
R TTR package EMA function Ratio field 0.00
Remove padding from string -0.18
pennyPerShare quantstrat not working 0.00
Replace a set of pattern matches with corresponding replacement str... +0.88
Retrieve monthly Adjusted stock quotes using the quantmod package i... 0.00
Columns Named as Numbers -1.98
Using lapply on quantmod, get straight to xts object? 0.00
get multiple chart using chart_Series of quantmod package 0.00
Converting Nested For Loop with Rolling Function to apply +1.86
R convert string to variable +1.20
Troubles between "Subset" and "[" +1.80
Can Rcpp replace unif function in R? -1.88
quantStrat won't recognize column names 0.00
Why does sapply scale slower than for loop with sample size? +1.11
Reliable way to detect if a column in a data.frame is.POSIXct +1.38
Identify a bar of interest on an OHLC chart on the graph itself 0.00
Convert Date to POSIXct 0.00
Using QuantMod/tseries monthlyReturn with dividend 0.00
How to use lapply to specific indices of a list? -0.72
R: sample() command subject to a constraint -0.79
to.period returns error attempt to set index 4/4 in SET_STRING_ELT... 0.00
How can I apply a name to an environment? -1.31
Mystery: Why does the as.character() function in a data.table run f... 0.00
Create XTS with dates with different number of rows 0.00
is there a way to extend LETTERS past 26 characters e.g., AA, AB, A... +1.28
Using cbind on XTS object changes the dash (-) character in previou... 0.00
Apply additional parameters syntax 0.00
R TTR Package MACD Function 0.00
sapply for a vector of dates in R +0.91
Estimation of rolling Value at Risk (VaR) using R -0.07
R - chartSeries using dev.copy to save from script not working 0.00
behavior of is.integer() in re-assignments +0.16
Faster alternative to function 'rollapply' 0.00
Referencing TxnPrice from addTxn() in blotter for trade exit 0.00
Quantmod: How do I leave the XTS output variable? 0.00
Parsing ambiguous timestamps -1.77
How to read CBOE csv file using data.table 0.00
xts - last obervation in a period 0.00
Conversion of '2013-05-22 02:00pm' to '2013-05-22 14:00... 0.00
31 bit limit on bit operations in R 0.00
QuantStrat sigFormula 0.00
R: What are operators like %in% called and how can I learn about th... -1.43
averaging time series data in r xts 0.00
Unexpected results when adding xts objects 0.00
Sort a data frame in R by multiple columns at the same time +1.88
How does dropTA work? 0.00
Quantmod not reading dates from csv via getSymbols 0.00
quick way to read a large flat file into r as.numeric -0.80
Odd behavior with vector assignments to xts object: reverse from ex... 0.00
subset list of xts objects 0.00