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Rating Stats for

Joshua Ulrich

Rating
1638.69 (725th)

Reputation
144,356 (398th)

Page: 1 ... 16 17 18 19 20 ... 35

Title	Δ
Convert a byte to something human-readable	0.00
Automatic vlookup and multiply coefficients with R	0.00
R date time aligning and fill through values	-2.24
Why would a read-in variable consumes way more memory than file's s...	0.00
smart way to find the number of rows between two 1s	0.00
rollapply and xts does not work in the new version of xts	0.00
Reading data into a data frame	+0.02
Maintaining order in split-apply-combine problems	+1.26
why R does not calculate the correlation when one value is NA?	0.00
Stop an R program without error	0.00
How do I set width of candles in candle chart using plot.xts?	+0.62
Is there a way to get merge.xts to leave names unchanged?	0.00
Invalid multibyte string in read.csv	0.00
R 2.15.2 Error in source - unexpected '}' - trying to submit homewo...	0.00
Converting Numbers to Dates in R	0.00
How to compute the daily avg correlation on intraday data using the...	0.00
convert string date to R Date FAST for all dates	+0.33
Improve performance function	0.00
What is a good way to select random dates over a given interval usi...	-0.70
Syntactical Issue in R	+1.49
Generating inverse permutation	-0.73
Date Conversion from yyyy-mm-dd to dd-mm-yyyy	-0.94
Change timezone in a POSIXct object	0.00
rbindfill like merge of list of vectors	+1.10
What is the opposite of %in% in r	-1.14
subsetting in xts using a parameter holding dates	+1.20
Most efficient/vectorization when using previous calculated value (...	-0.56
problems in deleting columns in csv file and storing data?	-1.90
zoo object cannot contain both factor and numeric vectors	+1.97
R convert between zoo object and data frame, results inconsistent f...	0.00
Documenting equations with deqn and roxygen	0.00
How to update a row in a multi-column XTS object?	+1.21
Aggregating time series to yearly data	-1.12
Approach to find contiguous region within logical time series	0.00
`as.na` function	+1.81
Is there a work around for slow performance of do.call(cbind.xts,.....	0.00
Optimise R Code - Sampling returns from S&P500 series	-0.67
Using auto.arima on xts objects	0.00
Divide observation by period mean. Help to simplify code	+1.44
Avoiding row-wise processing of data.frame in R	-1.40
Handling data on the days when we switch to daylight savings time a...	-0.50
R optimize script with a lot of loops	+0.33
Is there something in Python similar to quantstrat in R?	0.00
What is an alternative to passing a variable to a regular expressio...	0.00
How to create a boxplot in R from HLOC data	0.00
Apply a function to a specified range; Rate of Change	+0.32
diff() fails on zoo object	0.00
Count by type condition on third variable using only base R	+0.35
How do I make a randomForest model size smaller?	0.00
Reorder columns in a matrix	+0.28