Re: Multiplot magnitude issue
Posted by chrismlt on Feb 24, 2016; 1:27pm
URL: http://astroimagej.170.s1.nabble.com/Multiplot-magnitude-issue-tp267p358.html
Karen,
Sorry to bother you with all those trivial stuff ...
>One thing I noticed is that detrended data generally have a
line drawn through the average of the data, so I am wondering if
something is going wrong with the fit since your plot does not show a
line. Could you check and make sure all of the rows of the airmass data
column in the measurements table have a valid number in them?
The data are present and seems correct in the measurement table.
Now, something I have found is an odd « comportement » of the « Norm Mag ref » button when switching from « Detrending » to « off » and from « off » to « detrending », the plots seems not to be able to take the new option into account, so the plot is not actualised despite the fact that the button is changed : the airmass value are not correctly plotted nor the line, or it did not disappearded when needed ...
When acting a couple of time (twice clic, or triply clics) on the button, and finally the plot is actualised. (maybe a Windows compatibility trouble).
Now, knowing that, it's easy to deal with : I clic on the button until the plot is airmass corrected. That's it !
>The comp star magnitudes are effectively weighted by the brightness of
the star. See equation C1 in the arXiv paper here:
http://arxiv.org/abs/1601.02622
Oh ! I see. Thank you for pointing this out.
>I'm not sure what is going on with the C4 plot and the odd character in
the "then shift" column. I assume you are not able to enter zero in the
"then shift" column?
Sometimes I enter zero, then the ? Car vanish definitely, sometimes it comes back when Enter is pushed. This guy is somewhat impredictible.
Even if the ? Car disappears, and is remplaced by 0, the C4 stars is not plotted.
I will perform new tests, and send you the data if I could not find any solution. Any way, I will keep you informed here.
Thank you so much for helping,
Christophe
URL: http://astroimagej.170.s1.nabble.com/Multiplot-magnitude-issue-tp267p358.html
Karen,
Sorry to bother you with all those trivial stuff ...
>One thing I noticed is that detrended data generally have a
line drawn through the average of the data, so I am wondering if
something is going wrong with the fit since your plot does not show a
line. Could you check and make sure all of the rows of the airmass data
column in the measurements table have a valid number in them?
The data are present and seems correct in the measurement table.
Now, something I have found is an odd « comportement » of the « Norm Mag ref » button when switching from « Detrending » to « off » and from « off » to « detrending », the plots seems not to be able to take the new option into account, so the plot is not actualised despite the fact that the button is changed : the airmass value are not correctly plotted nor the line, or it did not disappearded when needed ...
When acting a couple of time (twice clic, or triply clics) on the button, and finally the plot is actualised. (maybe a Windows compatibility trouble).
Now, knowing that, it's easy to deal with : I clic on the button until the plot is airmass corrected. That's it !
>The comp star magnitudes are effectively weighted by the brightness of
the star. See equation C1 in the arXiv paper here:
http://arxiv.org/abs/1601.02622
Oh ! I see. Thank you for pointing this out.
>I'm not sure what is going on with the C4 plot and the odd character in
the "then shift" column. I assume you are not able to enter zero in the
"then shift" column?
Sometimes I enter zero, then the ? Car vanish definitely, sometimes it comes back when Enter is pushed. This guy is somewhat impredictible.
Even if the ? Car disappears, and is remplaced by 0, the C4 stars is not plotted.
I will perform new tests, and send you the data if I could not find any solution. Any way, I will keep you informed here.
Thank you so much for helping,
Christophe
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