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Rating Stats for

Joshua Ulrich

Rating
1638.69 (725th)
Reputation
144,356 (398th)
Page: 1 ... 12 13 14 15 16 ... 35
Title Δ
Rscript does not load methods package, R does -- why, and what are... 0.00
Understanding how .Internal C functions are handled in R +1.87
ADD a new column into an XTS object 0.00
R get only positive/negative delta using diff +0.31
Searching a functions source code -0.70
How to plot custom hourly data into R with quantmod? 0.00
dropping a list element in-place +0.30
How to test if object is a vector 0.00
R: Quantstrat how to make a transaction for complete equity in port... 0.00
Rscript could not find function 0.00
How do I speed up text searches in R? +1.17
how to extract the row with min or max values? 0.00
How to calculate any negative number to the power of some fraction... -1.35
Conversion to xts does not work because data is of type 'character'... 0.00
generate a sequence like 112123123412345 +0.73
failed to assign NativeSymbolInfo for Cdqrls when building R package 0.00
How can I view the source code for a function? 0.00
Check the frequency of time series data -0.34
backticks in variable name 0.00
R sapply is.factor +1.34
write.table converting NaNs to NA 0.00
Modify chart_Series theme 0.00
Extending a line 20 days into future on chartSeries plot 0.00
General code for calling a row that works for a matrix or a vector 0.00
convert date and time string to POSIX in R +0.30
R blotter: Posn before any position is opened generates an error 0.00
Plotting xts objects works with points but not with lines 0.00
How to find the length of the binary file -0.68
dput() efficiency in R +1.42
subset xts object if one column meets some criteria within same day -0.20
Changing the legend in chartSeries to display values - Quantmod addTA -0.18
VLookup type method in R +0.78
Error of EMA function under TTR 0.00
R: Calculate moving maximum slope by week accounting for factors -0.69
Why is mean() so slow? -2.21
XTS conditional sum -0.18
R: return one TRUE / FALSE from a group of boolean values 0.00
Why cbind for ts objects behaves different from cbind for matrices... +0.31
unexpected date format when creating a xts object with minute inter... 0.00
How can I use zoo::rollapply to create a `rollscale` implementation? 0.00
What is the fastest way to obtain frequencies of integers in a vect... +0.33
fast conversion from string time to milliseconds 0.00
FOSS to non-FOSS licence change CRAN package -2.06
R xts NextMethod replacement length error 0.00
Convert date-time format for use in xts 0.00
How do I tell R to always use Cairo for plotting? 0.00
Is there anything wrong with using T and F instead of TRUE and FALSE? 0.00
Per-group operation on multiple columns on data.frame -0.38
Using a loop/anything else to write a string of intervals (vector) +0.19
Grep in R using OR and NOT +1.27