R: Miscellaneous Functions for the Analysis of Educational Assessments

# Miscellaneous Functions for the Analysis of Educational Assessments

## Documentation for package ‘eatTools’ version 0.7.9

- DESCRIPTION file
- Package NEWS
- Package README

## Help Pages

eatTools-package | eatTools: Miscellaneous Functions for the Analysis of Educational Assessments
%$$% | Extract Parts of an Object (list)
addLeadingZerosToCharInt | Add leading zeros to all columns that can be identified as integers in a character data.frame
asNumericIfPossible | Convert a Vector, Matrix or Data Frame Into Numeric Values If Possible
catch_asNumericIfPossible | Use 'asNumericIfPossible' with modified warning.
checkBackgroundVariables | Internally needed function for consistency checks and data preparation.
cleanifyString | Removes special characters
contr.wec.weighted | Calculates contrasts for a weighted factor variable based on weighted effect coding
crop | Remove Trailing and Leading Characters From Character Strings
data.timss1 | Example dataset TIMSS 2011
descr | Descriptive statistics for one or several variables
do_call_rbind_withName | Row bind a list while assigning names to rows
existsBackgroundVariables | Internally needed function for consistency checks and data preparation.
facToChar | Transform columns in a data frame
gsubAll | Pattern matching and replacement
halveString | Split string exactly in two parts
insert.col | Insert Columns into a 'data.frame' at a Specific Position
makeDataFrame | Converts 'tbl' or 'data.table' objects to plain 'data.frames' for internal processing
makeTria | Reshapes an unordered covariance/correlation matrix into triangular shape
mergeAttr | Merge Two Data Frames with additional messages and maintain variable attributes
multiseq | multiple sequences
na_omit_selection | Drop rows containing missing values
num.to.cat | Transform continuous variables into ordered factors
print_and_capture | Easy integration of (small) tables into (error) messages
pwc | Part-whole correlation for numeric data frames
rbind_common | Combine data.frames by row, using only common columns.
rbind_fill_vector | Combine vectors of unequal length by row, filling missing columns with NA.
readMultisep | Read in data.frames with separator characters >=1Byte
recodeLookup | Recode a variable according to a lookup table
removeNonNumeric | Removes all non-numeric characters from a string.
removeNumeric | Removes alphanumeric characters from a string.
removePattern | Removes a specified pattern from a string.
roundDF | Round a 'data.frame'.
seq2 | Sequence generation
set.col.type | Set the Class of Columns in a Data Frame
tablePattern | Creates skeleton for frequency tables with desired values
tableUnlist | Frequency table for data frames, e.g. across multiple columns
whereAre | Matches a scalar with elements of a vector.
wideToLong | Transform wide format data sets into the long format necessary for eatRep analyses
wtdTable | Computed weighted frequency tables
wtdVar | Computed weighted variance