Re: Linear to log channel conversion...Help

Derek Davies (davies@icrf.icnet.uk)
Mon, 9 Sep 1996 16:27:09 +0100 (BST)

John,

The linear value for a particular channel number can be calculated using:

10 to the power Channel number/number of channels per log decade.

eg channel 512 of a 4 decade 1023 channel scale = 10^512/256 = 10^2 = 100.

This can also be done in reverse to calculate channel number from a
linear value. In this case use:

log(Linear value) x channels per decade.

Hope this is of some help.

Derek

Derek Davies
FACS Lab
Imperial Cancer Research Fund,
London, UK

http://www.icnet.uk/axp/facs/davies/index.html

On Wed, 4 Sep 1996 john@rm101.demon.co.uk wrote:

>
> Hi all,
>
> Can anybody help in converting channel numbers from listmode data
> (i.e. 0 - 1023) to their correct 4 decade log value.
>
> Many thanks
>
>
> John
>