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New posts in na
R control over number of consecutive NA values per row of data frame
Jun 20, 2026
r
dataframe
filter
na
missing-data
ifelse and POSIXct: coercion and default class of NA
Jun 19, 2026
r
date
types
posix
na
Merging data - Error in fix.by(by.x, x)
Jun 19, 2026
r
merge
na
zoo
data-files
marginal effects of mlogit in R
Jun 17, 2026
r
na
marginal-effects
R - Test if value is the same as the one in the cell above
Jun 13, 2026
r
if-statement
dataframe
dplyr
na
Python pandas - averaging 10 min measurements to 15min mean and 60min mean depending on the length of the data gap
Jun 11, 2026
python
pandas
mean
na
Missing data behaviour in lm: complete cases used even with predictors without missing data
Jun 10, 2026
r
na
lm
How to handle missing values (NA's) in a column in lmer
Jun 08, 2026
r
na
lme4
mixed-models
Deduplicating/collapsing records in an R dataframe
Jun 03, 2026
r
join
merge
dataframe
na
Can anybody explain the deep reason why here df.replace( ) end up with AttributeError: 'bool' object has no attribute 'to_numpy'? Thanks
May 28, 2026
python
pandas
dataframe
na
How to add a new row with one value and all other NA values in R
May 27, 2026
r
dataframe
na
How to make sure 'NA' is "not" the last factor level?
May 24, 2026
r
na
Why does NA in the middle of a geom_line not always break the line?
May 22, 2026
r
ggplot2
plot
na
Removing NA column in matrix in a list deletes column names of the matrix
May 20, 2026
r
list
matrix
na
names
Find sequences of NA values in data.frame rows
May 15, 2026
r
dataframe
rcpp
sequences
na
Remove leading and trailing NA
May 12, 2026
r
subset
na
missing-data
Expand dataframe with sequential dates based on a column of dates in R
May 12, 2026
r
date
na
expand
R sum consecutive duplicate rows and remove all but first
May 09, 2026
r
dataframe
duplicates
na
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