Displaying 2 results from an estimated 2 matches for "imid".
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igid
2013 Apr 26
2
speed of a vector operation question
Hello,
I am dealing with numeric vectors 10^5 to 10^6 elements long. The values are
sorted (with duplicates) in the vector (v). I am obtaining the length of
vectors such as (v < c) or (v > c1 & v < c2), where c, c1, c2 are some scalar
variables. What is the most efficient way to do this?
I am using sum(v < c) since TRUE's are 1's and FALSE's are 0's. This
2003 May 15
0
Re: list GRASSLIST: List Message Rejected
...>
> > Subject: Re: [R] libpq-fe.h ???
> > In-Reply-To: <BAY2-F107GEm3EcPPzA0000dd9c at hotmail.com>
> > Message-ID: <Pine.LNX.4.44.0305112121001.7212-100000 at gannet.stats>
> > MIME-Version: 1.0
> > Content-Type: TEXT/PLAIN; charset=US-ASCII
> > X-IMID: elron.baylor.edu
> > X-OriginalArrivalTime: 11 May 2003 20:34:02.0281 (UTC)
>FILETIME=[A8823990:01C317FC]
> >
> > 1) What has this to do with GRASS? It has very little to do with R,
> > either, appearing to be a PostgreSQL installation problem.
> >
> > 2) D...