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[camb] Plotting cl''s along with error bars

Posted: September 03 2017
by Ira *Wolfson
Hi all,

I am interesting in plotting the famous power spectrum cl's vs. l graph,
but with the actual observations and error bars, to compare between the results of several theories.


I was able to plot the actual graph (no fuss - it's in the camb readme),
but how can I add the observations and error bars?


-- Ira

[camb] Plotting cl''s along with error bars

Posted: September 05 2017
by Savvas Nesseris
If you already have the Cls, then plotting them with the errors is easy:

In Python:
https://matplotlib.org/1.2.1/examples/p ... _demo.html

In Mathematica:
http://reference.wolfram.com/language/E ... tPlot.html

Cheers

[camb] Plotting cl''s along with error bars

Posted: September 05 2017
by Ira *Wolfson
I meant where do I find the error bars for the actual Cl's either in the camb output, or otherwise somewhere else.


-- Ira

[camb] Plotting cl''s along with error bars

Posted: September 10 2017
by Ira *Wolfson
So, Any ideas regarding where do I get the error bar --data-- on the Cl's?
Not asking how to plot, but how to get the data.


-- Ira

[camb] Plotting cl''s along with error bars

Posted: September 13 2017
by Graeme Addison
We have a collection of some recent Cl data points and errors on this page of the LAMBDA site (scroll down to CMB-only TT power spectrum, click the text file link): https://lambda.gsfc.nasa.gov/graphics/

[camb] Plotting cl''s along with error bars

Posted: September 13 2017
by Ira *Wolfson
Thanks!!!

-- Ira