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Joshua Ulrich

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1638.69 (725th) 		Reputation
144,356 (398th)
Page: 1 2 3 ... 35
Title Δ
Error in calculating Implied Volatility in R +1.17
R: parallel calculation of xts. file and the vectors 0.00
Matrix imported by getSplits (quantmod) is shaped in different way... 0.00
Multiple time series plots for several stocks in R returns an error +1.27
How to Split a XTS Data Frame by Date Index? 0.00
Subtracting a common xts object from all the columns of all xts obj... -1.48
Setting start time for to.period in R -0.08
Slow performance of nested loop in R 0.00
Merge xts objects with different frequences 0.00
Zero-length error when trying to Lag xts time series? 0.00
Manually adjusted closing price doesn't match with Yahoo Financ... 0.00
Why I'm getting different results in ks.boot output when applyi... 0.00
Applying function to a subset of xts quantmod +1.40
merge.xts on specific columns over a for loop 0.00
Why has xts.index stopped working after upgrading to R 4.0.0? 0.00
XTS data taking up too much space in memory? +0.31
Warning message 'indexClass<-' is deprecated from getSym... 0.00
Workaround to Quantmod getDividends which apparently stopped workin... 0.00
getSymbols() from quantmod in R doesn't work 0.00
Failed to download data from Yahoo finance using Quantmod -0.15
Calculate Daily return using intraday prices? 0.00
Why is xts or quantmod coding each monday as 1? +1.09
Efficient coding to make time increments 'finer' from minut... -1.86
Adding a custom indicator to ChartSeries Quantmod 0.00
Error in UseMethod("as.xts") : no applicable method for &... 0.00
R data.table to xts with grouping -0.36
How to get diurnal cycle from hourly multiseries XTS in R? 0.00
How to use apply.daily/period.apply for calculating maximum per col... 0.00
BUG in the r xts package's to.period function? 0.00
Quantmod argument without quotation marks 0.00
R: Export CSV with dates from getSymbols(), "quantmod" pa... -0.69
xts convert data from chr to numeric 0.00
R multiple plots of time series xts with only 1 legend -0.19
irregular time series using ggplot2 plot is not correctly scaled an... 0.00
Generate a List of TimeSeries from a dataframe +1.51
How to get dates as in csv with write() function? 0.00
R: how to vapply across rows for xts object? +0.31
Is there a way to use period.apply with doParallel and foreach in x... -1.78
Updating time series with another time series +0.32
R crashes when establishing a database connection via RPostgreSQL 0.00
forcing modify in place in an R6 class (in R) 0.00
Highlight plot area in time series 0.00
Filter R xts object to exclude a certain date -0.69
Convert Dataframe object into xts 0.00
Why names() returns the names of at least 2 columns in the data.fra... 0.00
r: Error in `[.xts`(x, seq_len(xlen - n)) : subscript out of bounds +0.34
R:Transforming my xts to ts: automatically detecting the same dates 0.00
align.time() in xts package taking huge time +1.15
Loading in list of xts to be used in Quantmod +0.30
R How to use a complex function at seasonal period under hydroTSM a... 0.00