demographics.to.fsgd.file {fsbrain}

Write FreeSurfer Group Descriptor (FSGD) file from demographics dataframe.

Description

Write FreeSurfer Group Descriptor (FSGD) file from demographics dataframe.

Usage

demographics.to.fsgd.file(
  filepath,
  demographics_df,
  group_column_name = "group",
  subject_id_column_name = "id",
  var_columns = NULL,
  ftitle = "OSGM",
  fsgd_flag_lines = c("DeMeanFlag 1", "ReScaleFlag 1")
)

Arguments

filepath

character string, the path to the output file in FSGD format

demographics_df

data.frame, as returned by read.md.demographics or created manually. Note that the data.frame must not contain any character columns, they should be converted to factors.

group_column_name

character string, the column name of the group column in the 'demographics_df'

subject_id_column_name

character string, the column name of the subject identifier column in the 'demographics_df'

var_columns

vector of character strings, the column names to include as variables in the FSGD file. If NULL (the default), all columns will be included (with the exception of the group column and the subject id column).

ftitle

character string, freeform title for the FSGD file

fsgd_flag_lines

vector of character strings, extra flag lines to write to the file. The default setting will activate de-meaning and rescaling.

Value

vector of character strings, the lines written to the 'filepath', invisible.

See Also

Other metadata functions: read.md.demographics(), read.md.subjects(), report.on.demographics()