I'm trying to extract all of the values from edm in the example below.
 However, the first attempt only retrieves the final number in the sequence
since it is recorded using scientific notation.  The second attempt
retrieves all of the numbers, but omits the scientific notation component
of the final number.  How can I make the regular expression more general
such that I get every value AND its corresponding "E"-value (i.e.,
"...E-06"), where pertinent?   I've spent time reading through ?regex, but
my attempts to use the "*" character, where the preceding item will be
matched zero or more times, have so far proven syntactically incorrect or
generally unsuccessful.  .Appreciate the help, Eric

edm <-
c("","param_value","6.301343","6.366305","6.431268","6.496230","6.561192","6.626155","9.091117E-06")

param_values <- strapply(edm,"\\d+\\.\\d+E[-+]?\\d+", as.numeric,
simplify=cbind)
param_values
#[1,] 9.091117e-06

param_values <- strapply(edm,"\\d+\\.\\d+", as.numeric, simplify=cbind)
param_values
#[1,] 6.301343 6.366305 6.431268 6.49623 6.561192 6.626155 9.091117

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