ing using a boolean index vector (repost in plain text).
?cumsum
?ave
But without data (follow the posting guide) specific solution can not
be specified
On Fri, Jun 18, 2010 at 11:39 AM, Dan Stanger wrote:
> Hello all:
> I have a dataframe f of weekdays and value, and a Boolean vector wit
?cumsum
?ave
But without data (follow the posting guide) specific solution can not
be specified
On Fri, Jun 18, 2010 at 11:39 AM, Dan Stanger wrote:
> Hello all:
> I have a dataframe f of weekdays and value, and a Boolean vector with Fridays
> set to true, and other days set to false, created
Hello all:
I have a dataframe f of weekdays and value, and a Boolean vector with Fridays
set to true, and other days set to false, created by fridays<-(diff(f$weekdays)
< -1).
I would like to create a vector of sums, for each week. That is, start summing
on the first false value in the vector,
Hello all:
I have a dataframe f of weekdays and value, and a Boolean vector with Fridays
set to true, and other days set to false, created by fridays<-(diff(f$weekdays)
< -1).
I would like to create a vector of sums, for each week. That is, start summing
on the first false value in the vector,
4 matches
Mail list logo
