[R] Why predicted values are fewer that the real?

Sarah Goslee sarah.goslee at gmail.com
Fri Mar 2 19:28:02 CET 2012


On Fri, Mar 2, 2012 at 11:19 AM, labbig <lkaimaka at windowslive.com> wrote:
> Hi
> i am running a glm model family Gamma(link=log) trying to predict a vector
> of 1554 (real) values
> Using predict() i got a vector of 950 predicted values instead of 1554.
> The predictions are good though
> The model doesnt take account of negative values and NAs which are only 121
> values.
> Any clue?

To have a clue, we need far more information than you've provided, possibly
even the reproducible example requested in the posting guide.

> Thank
> --
> View this message in context: http://r.789695.n4.nabble.com/Why-predicted-values-are-fewer-that-the-real-tp4438912p4438912.html
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

Sarah Goslee

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