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Marcos Pérez

Rating
1456.15 (4,530,625th)
Reputation
1,260 (127,171st)
Page: 1
Title Δ
Including Date Format in a Data Frame +0.86
Does R have a way to say "do n times" without having to w... -3.57
Identifying observations that overlap in space and time -1.57
Concatenate multiple df in list into different columns of a single df +2.03
Using filter() function with pipe operator to find mean and round -1.76
Count the number of missing values in R -3.86
Tidyverse Rowwise sum of columns that may or may not exist -3.72
Match Any Strings from Two Data frame in R -4.29
betareg on skewed proportions leads to a high predicted mean +0.34
how to obtain expected value in matrix for chisqrt? 0.00
How to filter values in a list within a dataframe in R? -0.54
How to modify the n following value of a selected row -3.06
Filtering rows by different columns -1.98
What is the most efficient way to find the closest geographic locat... -3.78
Adjusting lags to data frame for all variables at one time +4.43
Subsetting R data frame automatically based on changing date range -4.02
How to use string of numbers as coordinate points of matrix R +0.21
Dplyr mutate with variable number of column outputs -2.63
Predict linear regression with multiple separate groups +1.47
group_by using the function "for" didn´t work (R) -2.11
Combine the row values based on time interval +0.58
Combine the row values based on time interval -3.42
How to compute the following exclude an index summation in R? 0.00
Rstudio Extract from files from folder certain files and certain co... 0.00
generalize R function for variable input +4.34
Efficiently reshaping a non-standard dummy-coded matrix or table in R -2.94
Adding column to a dataframe in R based on matching conditions in a... +1.11
How to calculate distance matrix using outer function in R 0.00
How to calculate maxDrawdown in R 0.00
the column name of the largest number in each row of a data.frame +2.86
how to subtract a part of a string into a new variable in my datafr... +0.74
Writing R function -3.78
How to copy a value from one position in data frame and apply it fo... -4.14
Same process in different data frames with R +4.28
Best way to covert List to Matrix or Tibble format? -1.50
Alternative to if statements inside for loops in R -1.95
Pass column names to dplyr::coalesce() when writing a custom function -1.96
How to write a summation of `\sum_{k\neq i} x_{k}y_{K}`? +0.27
Filtering the first row in R -1.05
rename file(s) in folder by list in R -1.38
Compute the maximum value by group and by a time "window" -0.34
Compute the maximum value by group and by time in R -3.93
How to calculate yearly retention rate by group in R? 0.00
Change vector's entries values automatically in r +0.02
RJDBC SQL queries: "This driver is not configured for integrat... -2.69
show value on lattice dotplot 0.00
Select a specific string from a complicated txt in R using dpylr -1.41