The phrase "figure of reference" is correct and can be used in written English.
It is used to talk about someone or something as a point of comparison or reference. For example, "Johnny is the figure of reference for his friends when it comes to basketball."
The data plotted in Figures 3A, D, and E were extracted from Figure 1 of reference [12], Figure 1 of reference [19], and Figure 6 of reference [20], respectively, using GraphClick v. 12.9 (Arizona Software).
Likewise, as shown in Figure 6 and its corresponding figure for PASS2.2 (Please refer Figure 2b of reference 7); the distribution of length variation across different structural classes remained quite similar.
For details, see Figure 1 and Figure A of reference [ 11].
Experiment 1 measured the reaction time pattern in a simple object layout and the salience effect of the anchoring object (landmark) in the intrinsic frame of reference (Figure 1).
In this case, the apparent line width is governed more by relaxation than by distribution in zero field energies and thus is narrower at 94 GHz than at 9.4 (Conspectus figure; EPR spectra adapted with permission from Figure 15 of reference (31), 2009, Springer).
These spectra may be compared to Figure 5 of reference [15].
Nuclear import rate constant of phosphorylated Smad: Figure 3 of reference [22] shows that nuclear import rate between phoshporylated and unphosphorylated Smad2 is similar.
The standard deviation of each point of the pCF function is on the order of 5% of the size of the hump (see Figure 4 of reference 19).
On the other hand, Figure 5A of reference [8] also shows that the nuclear export rate of Smad4 is about half of the nuclear export rate of Smad2.
