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Rating Stats for

WaltS

Rating
1550.03 (7,936th)
Reputation
4,277 (39,099th)
Page: 1 2 3 4
Title Δ
string extraction and manipulation in R with stringr / dplyr 0.00
How to determine author co-occurence from a list of published papers 0.00
Perform an operation on a vector using the previous value after an... +2.61
How to convert matrix with tick data into xts? -0.05
Pass vector of dates to quantmod 0.00
Calculate speed (first derivative in time) of time series +0.43
purrr map a t.test onto a split df +0.03
Spline interpolation R with conditions 0.00
Looking for better way to visualise distribution in R and ggplot2 -1.95
How convert column in a date object, based on a index +1.99
String distance matrix by criteria +3.71
exclude unused factor levels in facets in ggplot 0.00
How to get list name and slice name with pipe and purrr 0.00
Finding similar words (plurals and singulars) using grep in R +3.62
Household grid: extracting information across columns to fill lead... +3.62
Replace matches according to the pattern that was matched -0.61
Apply function over 2 character vectors return list - purrr 0.00
Fastest way for doing 21 day rolling sum for an ActivityType +2.96
ggplot2 legend with only one category / with only the shape and no... -2.32
Apply dplyr over select number of rows to calculate angular velocity 0.00
Counting number of times Activity Types appear in the last 21 day W... -0.24
PortfolioAnalytics Error row names not Dates 0.00
Create Envelope with Spline Interpolation in R 0.00
Scaling really large bar compared to other bars in ggplot2 in R -4.14
How to frequency of consecutive rows with the same number for sever... +2.32
Customize ymax in facet_grid in ggplot2 0.00
rollsum with fixed dates 0.00
Interpolate with spline and keep exact knotted values +3.50
Correlation using funs in dplyr +3.73
Changing labels R ggplot in two variable facet wrapped plot 0.00
R and ggplot - plot distribution and line 0.00
Fill area between two lines, with high/low and dates +3.80
Working with matrices in r +3.82
Using R: Fama MacBeth Regression - Portfolio formation and Stock re... 0.00
Stacked barplot R (multiple variables) 0.00
finding multiple within-string matches in R -3.04
ggplot2: remove blank space for weekends and holidays from x-axis d... +1.78
display labels for desired vertices only 0.00
Plot time series per millisecond 0.00
Count duplicates based on range of datetime in R 0.00
Rolling Window adfTest with fix starting point 0.00
Rainfall intensity from a tipping bucket +4.36
rollapplyr moving window ADF +4.23
Plot graphs in R by loop and save it like jpeg -0.15
Forecasting time serie data 0.00
quadprog fails to find a solution +3.90
create loop in R precipitation data defined interval start and end 0.00
Equal-Weighted RETURNS not EQUALLY-Weighted in R 0.00
R portfolio analytics chart.EfficientFrontier function -1.41
PortfolioAnalytics "dollar_neutral" constraint 0.00