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arff文件和txt文件之间的转换_python

2024-07-18 06:19:22   221人阅读

在github上，已经有前辈对这两种格式的文件间的转换提供了相应的python库，比如liac-arff: https://github.com/renatopp/liac-arff。但是当程序比较复杂时，再调用这么多外部文件，未免显得冗杂；而且这些arff库，在attribute和值数目不一致时，会报错。所以，在师兄的支持下，我参考overflow写了两个简单的转换函数。（用时5个多小时。。。以后要效率啊）

arff2txt():

将arff文件转换成txt格式：

import reimport sysdef arff2txt(filename):    txtfile = open(‘./generatedtxt.txt‘,‘w‘)    arr = []    lines = []    arff_file = open(filename)    for line in arff_file:        if not (line.startswith("@")):            if not (line.startswith("%")):                line = line.strip("\n")                line = line.split(‘,‘)                arr.append(line)    del arr[0]    for child in arr:        del child[10]        if child[9] == "True":            child[9] = 1        else:            child[9] = 0        lines.append(‘\t‘.join(map(str,child)))    result = ‘\n‘.join(lines)    print result    txtfile.writelines(result)    txtfile.close()

 

txt2arff():

将txt文件转换成arff()格式：

def txt2arff(filename, value):    with open(‘./generatedarff.arff‘, ‘w‘) as fp:        fp.write(‘‘‘@relation ExceptionRelation@attribute ID string@attribute Thrown numeric@attribute SetLogicFlag numeric@attribute Return numeric@attribute LOC numeric@attribute NumMethod numeric@attribute EmptyBlock numeric@attribute RecoverFlag numeric@attribute OtherOperation numeric@attribute class-att {True,False}@data‘‘‘)        with open(filename) as f:            contents = f.readlines()        for content in contents:            lines = content.split(‘\t‘)            lines = [line.strip() for line in lines]            if lines[9] == ‘1‘:                lines[9] = "True"                lines.append(‘{‘ + str(value) + ‘}‘)            else:                lines[9] = "False"                lines.append(‘{1}‘)            array = ‘,‘.join(lines)            fp.write("%s\n" % array)

 


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