Hi there!!!
I am posting this query with respect to this article. In the supplementary figure section they have provided a Density vs gene number
plot in figure 2.a and 2.b
. Can anyone tell me what this "Density" refers to?
thanks, DC7
Hi there!!!
I am posting this query with respect to this article. In the supplementary figure section they have provided a Density vs gene number
plot in figure 2.a and 2.b
. Can anyone tell me what this "Density" refers to?
thanks, DC7
Hi,
From what I understood the density
in Fig. 2A
is the frequency, i.e., the no. of times or no. of reads, of each gene. Since the density
is in the order of 3e-06
, my guess is that the frequency/density is in proportion/relative abundance rather than absolute counts. So, what the plots show is how many genes have 10 reads, how many have 1000, how many have 10 K reads and so on, but in proportion - this is my guess - it's not clear from the legend's description. So it shows the distribution of gene counts.
The density
in Fig. 2B
is a bit different. So, is the frequency, i.e., how many genes have a specific p-value, on the x-axis.
I hope this helps,
António
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Thanks Antonio. It was really helpful. Do you know which software or R-package can be used for that?
Thanks, Deep
In R, you can use the R-base functions such as
hist()
ordensity()
or you can use the R packageggplot2
. Have a look into this STHDA tutorial.António