asNumericIfPossible |
Convert Columns of a Data Frame Into Numeric Values If Possible |
collapseMissings |
Recode Character Missings of Different Types to 0 or 'NA' |
commonItems |
Identify Common Items for Several Groups |
commonItems.percent |
Identify Percentage of Common Items for Several Groups |
crop |
Remove Trailing and Leading Characters From Character Strings |
fill.na |
Replace Missing Values in a Vector |
make.dummies |
Create Dummy Variables from a Data Frame |
modus |
Compute the Mode of a Variable |
multiseq |
multiple sequences |
reinsort.col |
Insert Columns into a Data Frame in a Specific Position |
rmNA |
Remove Columns and Rows with Missing Data |
rmNAcols |
Remove Columns with Missing Data |
rmNArows |
remove NA rows from data |
set.col.type |
Set the Class of Columns in a Data Frame |