umx_stack: Stack data like stack() does, with more control.

In tbates/umx: Structural Equation Modeling and Twin Modeling in R

Stack data like stack() does, with more control.

Description

Operates like stack(), but can preserve ("passalong") other variables on each row, and allows the user control over the values and group column names for ease of use.

Usage

umx_stack(x, select, passalong, valuesName = "values", groupName = "ind")

Arguments

x	a dataframe containing twin data.
select	The variables to stack (wide 2 long)
passalong	Variables to preserve on each row (e.g. age)
valuesName	The name for the new stacked column (default = "values")
groupName	The name for the column containing the grouping variable (default = "ind")

Value

• long-format dataframe

See Also

umx_wide2long()

Other Data Functions: noNAs(), prolific_anonymize(), prolific_check_ID(), prolific_read_demog(), umx, umxFactor(), umxHetCor(), umx_as_numeric(), umx_cont_2_quantiles(), umx_lower2full(), umx_make_MR_data(), umx_make_TwinData(), umx_make_fake_data(), umx_make_raw_from_cov(), umx_merge_randomized_columns(), umx_polychoric(), umx_polypairwise(), umx_polytriowise(), umx_read_lower(), umx_rename(), umx_reorder(), umx_score_scale(), umx_select_valid(), umx_strings2numeric()

Examples

# Base-R stack function
df = stack(mtcars, select = c("disp", "hp"), drop=FALSE)

# umx_stack, with additional variables passed along 
df= umx_stack(mtcars, select= c("disp", "hp"), passalong= "mpg")
str(df) # ind is a factor, with levels select
ggplot2::qplot(x = mpg, y= values, color=ind, data = df)

tbates/umx documentation built on Dec. 14, 2024, 11:28 a.m.