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Rating Stats for

Jilber Urbina

Rating
1570.53 (3,984th)

Reputation
44,632 (2,375th)

Page: 1 ... 5 6 7 8 9 ... 21

Title	Δ
Sum a column based on condition in another column in R	+1.73
Calculate EWMA covariances and correlations in R	0.00
Complex multiple if statements	+1.72
Convert a string into a formula in R	0.00
write.table columns do not align with blanks	+0.40
Functions for finding first and last variables in the vector	+1.15
How can I get mean of every n rows and keep the date index?	+0.10
How to get the count or percentage of one factor variable in each d...	0.00
Count variables in data frame depending on other variable	-2.46
R: How to subset columns based on values of the first row?	0.00
add characters at the beginning of a line in R	0.00
In R, using the vars package doing a VAR model, how to specify one...	0.00
re-arrange columns in a data frame in R	-0.90
Get minimum grouped by unique combination of two columns	-1.16
R Programming Language merge objects within one data frame	-0.30
Spliting string into a list of substrings	+0.37
data frame partitioning, how to	-0.84
Check matrix size	-0.60
How do you use variables in a regression formula in R?	-1.85
R creating a sequence table from two columns	-1.83
How to sum variables in a column where a particular condition is sa...	+0.39
Setup Runtime Function Error... Error: unexpected '}' in &q...	0.00
How to get a 2 columns, 8 rows matrix instead of returning 2 rows,...	-0.48
Replace strings to equivalent number of a specific character in R	-1.41
Exclude all rows with JUST specific patterns in R	0.00
Multiplying column value by another value depending on value in cer...	+1.24
Delete/overwrite a print() message in R	+1.81
How to interpolate two list in R in a 3º list?	+1.19
calculate the rate under the same in using R	-0.01
subset a vector of column names by a particular sample prefix	+1.84
How to access to individuals variables of a dataset for lineal regr...	-1.26
Transposing columns in R programming	0.00
get the indices of several row names	0.00
r get value only from quantile() function	+0.39
Summing over particular columns of data frame in R	0.00
Add column sum to table	-0.84
lm on element of a list	-0.80
Revalue in R with a default	0.00
Simple lapply task	-3.00
Clipping elements in a long vector to +/-threshold	+1.73
Create new variable by combining 2 Categorical variables in R	-0.12
Delete columns from a square matrix that sum to zero along with cor...	-0.47
Split a string every 5 characters	+0.55
Change orientation of barplot() in R	0.00
How to subset a vector by intervals of 10?	+0.39
How to convert entire dataframe to numeric while preserving decimals?	-1.29
Flag first by-group in R data frame	+1.73
R loop dataframe and create a vector from each row	+1.47
Counting unique values across variables (columns) in R	+0.41
R - dplyr - select columns based on string	-1.36