Displaying 4 results from an estimated 4 matches for "themarkus".
2012 Apr 22
3
need advice on using excel to check data for import into R
I have created an S4 object type for conducting fire department data
analysis. The object includes validity check that ensures certain fields
are present and that duplicate records don't exist for certain combinations
of columns (e.g. no duplicate incident number / incident data / unit ID
ensures that the data does not show the same fire engine responding twice
on the same call).
I am
2012 Mar 28
1
how to match exact phrase using gsub (or similar function)
trying to switch out addresses that have double directions, such as the
following example:
a = "S S Main St & Interstate 95"
a = gsub(pattern="S S ", replacement="S ", a)
… the problem is that I don't want to affect instances where this might be
a correct address such as the following:
"3421 BIGS St"
what I want to say is switch out only if
2012 Oct 26
1
using match-type function to return correctly ordered data from a dataframe
I am regularly running into a problem where I can't seem to figure out how
maintain correct data order when selecting data out of a dataframe. The
below code shows an example of trying to pull data from a dataframe using
ordered zip codes. My problem is returning the pulled data in the correct
order. This is a very simple example, but it illustrates a regular problem
that I am running into.
2011 Aug 31
2
stumped on how to reorder factors
I am trying to reorder a factor data type so that when I plot stats
associated with the factor, the ordering makes sense.
For instance, if I have a factor entered as follows ...
A = as.factor(c("1", "10", "3", "3", "10", "10"))
levels(A)
... the ordering does not really make sense (assuming I want the factor
ordered by integer