add subcommand drop,pretty,tail...

Cargo.toml

@@ -17,6 +17,7 @@ atty = "0.2.14"
 bzip2 = "0.4.4"
 chrono = "0.4.38"
 clap = { version = "4.5.4", features = ["derive", "wrap_help"] }
+comfy-table = "7.1.1"
 csv = "1.3.0"
 env_logger = "0.10.0"
 flate2 = "1.0.28"

README.md

@@ -41,11 +41,16 @@ Usage: xtab [OPTIONS] [CSV] <COMMAND>
 Commands:
   addheader  Set new header for CSV file [aliases: ah]
   dim        Dimensions of CSV file
-  head       Get first N records from CSV file
-  uniq       Unique data without sorting
+  drop       Drop or Select CSV fields by columns index
+  freq       freq
+  head       Print first N records from CSV file
+  pretty     Convert CSV to a readable aligned table
+  tail       Print last N records from CSV file
+  uniq       Unique data with keys
   view       Show CSV file content
   help       Print this message or the help of the given subcommand(s)
 
+
 Options:
   -h, --help     Print help (see more with '--help')
   -V, --version  Print version

example/demo.csv

@@ -0,0 +1,21 @@
+sampleid,time,value,bact,FZ69010001,FZ69010002,FZ69010003,FZ69010004,FZ69010005,FZ69010006,FZ69010009,FZ69010011,FZ69010012,FZ69010014
+5021150000747,S1,28.16,阳性,G,A,A,C,T,T,T,C,A,AG
+5021309000975,S1,NoCt,阳性,0,A,0,0,T,0,T,0,0,0
+5020951000970,S1,24.03,阳性,G,A,A,C,T,CT,T,C,A,AG
+5021380000841,S1,36.76,阳性,G,A,A,C,T,C,T,C,A,G
+5021380000856,S1,19.85,阳性,G,A,A,C,T,C,T,C,A,A
+5021309001064,S1,27.36,阳性,G,A,A,C,T,C,T,C,A,A
+5021265000525,S1,33,阳性,G,A,A,C,T,T,T,C,A,AG
+5021309000755,S1,23.8,阳性,G,A,A,C,T,T,T,C,A,A
+5021225001940,S1,37.19,阳性,G,A,A,C,0,C,CT,C,A,G
+5021309000987,S1,18.64,阳性,G,A,A,C,T,C,T,C,A,A
+5021225001316,S1,20.09,阳性,G,A,A,C,T,C,T,C,A,A
+5020951000905,S1,27.38,阳性,G,A,A,C,T,C,T,C,A,G
+5021265001963,S1,35.48,阳性,G,A,A,C,0,C,0,0,A,A
+5021309000993,S1,26.94,阳性,G,A,A,C,T,C,T,C,A,A
+5021309001694,S1,32.07,阳性,G,A,A,C,T,C,T,C,A,A
+5021380000846,S1,31.19,阳性,G,A,A,C,T,C,T,C,A,A
+5021380000097,S1,28.63,阳性,G,A,A,C,T,C,T,C,A,A
+5021309001944,S1,37.26,阳性,0,A,0,C,0,C,0,C,A,A
+5021309001684,S1,26.65,阳性,G,A,A,C,T,C,T,C,A,A
+5021380001015,S1,36.03,阳性,0,A,0,0,0,C,0,C,0,A

example/toy.tsv

@@ -1,2 +1,2 @@
 a	c
-v	c
+v	d