[英]Python: Extracting data from a .seg file
我有這個.seg
文件,我需要從該文件中根據群集號(例如S0
提取第3和第4列中的值。
;; cluster S0
khatija-ankle 1 0 184 F S U S0
;; cluster S1
khatija-ankle 1 407 291 F S U S1
khatija-ankle 1 790 473 F S U S1
khatija-ankle 1 1314 248 F S U S1
khatija-ankle 1 1663 187 F S U S1
到目前為止,這是我的代碼:
file1 = open('f1.seg', "w")
file2 = open('f2.seg', "w")
with open('ankle.seg','r') as f:
for line in f:
for word in line.split():
if word == 'S0':
file1.write(word)
elif word == 'S1':
file2.write(word)
如何創建每個群集的文件並在其中寫入第3列和第4列?
問題 :如何創建每個群集的文件並在其中寫入第3列和第4列?
相反, if word == 'S0':
比較單列值,請檢查哪個集群ID具有一行數據的最后一列。
例如:
# Create a list of column values
data = line.rstrip().split()
# Condition: last value in data == cluster id
if data[-1] == 'S0':
# write to S0 file
print("file1.write({})".format(data[2:4]))
elif data[-1] == 'S1':
# write to S1 file
print("file2.write({})".format(data[2:4]))
輸出 :
file1.write(['S0']) file1.write(['0', '184']) file2.write(['S1']) file2.write(['407', '291']) file2.write(['790', '473']) file2.write(['1314', '248']) file2.write(['1663', '187'])
使用Python測試:3.4.2
雖然這當然可以在Python中完成,但它很好地說明了為什么awk非常適合斜線切割文本文件:
#! /usr/bin/awk -f
/^;;/ {
filename = $3 ".seg"
next
}
{ print $3, $4 > filename }
輸出:
$ tail *.seg
==> S0.seg <==
0 184
==> S1.seg <==
407 291
790 473
1314 248
1663 187
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