Change data family data from wide (2 twins per row) to long format.
Just detects the data columns for twin 1, and twin 2, then returns them stacked on top of each other (rbind) with the non-twin specific columns copied for each as well.
*Note*, zygosity codings differ among labs. One scheme uses 1 = MZFF, 2 = MZMM, 3 = DZFF, 4 = DZMM, 5 = DZOS or DZFM, 6 = DZMF, with 9 = unknown, and then 50, 51,... for siblings.
Typically, OS twins are ordered Female/Male.
umx_wide2long(data, sep = "_T", verbose = FALSE)
data |
a dataframe containing twin data. |
sep |
the string between the var name and twin suffix, i.e., var_T1 = _T |
verbose |
Report the non-twin and twin columns (default = FALSE). |
- long-format dataframe
[reshape()]
Other Twin Data functions:
umx_long2wide(),
umx_make_TwinData(),
umx_make_twin_data_nice(),
umx_residualize(),
umx_scale_wide_twin_data(),
umx
long = umx_wide2long(data = twinData, sep = "") long = umx_wide2long(data = twinData, sep = "", verbose = TRUE) str(long) str(twinData)
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