getRowDataFromDF {iSPlot} | R Documentation |
Return certain rows and their indices from a dataframe
Description
getRowDataFromDF returns only certain rows and their indices from a
dataframe. This function is useful when wanting to return information
from a dataframe that just had a few rows changed. It is called by the
function, updateSpread, when only a few rows in the spreadsheet need to
be updated.
Usage
getRowDataFromDF(dfName, data)
Arguments
dfName |
the name of the dataframe |
data |
data is a list with an element called, Rname, that indicates which rows to return |
Value
rowIndex |
the indices of the rows in the dataframe |
rowData |
a subset of the dataframe that only includes the changed rows |
Author(s)
Elizabeth Whalen
See Also
getData
,
updateSpread
Examples
if (interactive())
{
createControlWindow()
# should load data through Open Data or Open File under the File menu
data(USArrests)
loadDFData(USArrests,"USArrests")
# creating a spreadsheet should occur through View Data under
# the Display menu
createView(type = "spreadView", dataName = "USArrests")
# should set the view mode to highlight using the View Mode menu
setHighlightMode()
# now click on a row in the spreadsheet and that will cause
# updateSpread to be called - updateSpread will call getRowDataFromDF
# because only one row will be updated
# you can tell it was called because the data and thus, the
# spreadsheet will change
}
[Package
iSPlot version 1.0.7
Index]