>> How to make reduced data sets for INX-6 (EMPIAR-10291) <<
 Takeshi Kawabata                         2020/10/15 

The original EMPIAR-10291 (15.9 GB) contains 300 mrc files, each of them has 
3710 x 3838 x 1 (#MRC_MODE 2 "32-bit signed real').

(1) Execute "CTFfind" by Relion 3.1 (CTFFIND-4.1).

(2) Check CtfFind/*/micrographs_ctf.star
    First, we checked a distribution of _rlnCtfFigureOfMerit #8  and _rlnCtfMaxResolution #9, 
    and cofirmed it has a single-peak distribution.
     Then, we decided to choose good micrographs only by MaxResolution.

[takawaba@rubisco select_img_EMPIAR_20291]$ sort -n -k 9 micrographs_ctf.star  |awk '(NF>=9){print}' |head -10  > 10.star
[takawaba@rubisco select_img_EMPIAR_20291]$ sort -n -k 9 micrographs_ctf.star  |awk '(NF>=9){print}' |head -50  > 50.star
[takawaba@rubisco select_img_EMPIAR_20291]$ sort -n -k 9 micrographs_ctf.star  |awk '(NF>=9){print}' |head -100 > 100.star