Practice and Learn JSON creation, manipulation, Encoding, Decoding, and parsing using Python Python NumPy Exercise Practice NumPy questions such as Array manipulations, numeric ranges, Slicing, indexing, Searching, Sorting, and splitting, and more. Python Pandas Exercise Practice Data Analysis using Pyth...
#用Pandas的replace函数定义一个通用函数defcoding(col, codeDict): colCoded = pd.Series(col, copy=True)forkey, valueincodeDict.items(): colCoded.replace(key, value, inplace=True)returncolCoded#将LoanStatus 编码为 Y=1, N=0:print'Before Coding:'printpd.value_counts(data["Loan_Status"]) d...
本文将介绍12种用于数据分析的Pandas技巧,为了更好地描述它们的效果,这里我们用一个数据集辅助进行操作。另外,本文在原文的基础上,使用Python3.6进行操作。 数据集:我们研究的主题是贷款预测,请到datahack.analyticsvidhya.com/contest/practice-problem-loan-prediction下载数据(需注册),并开始学习之旅。
本文将介绍12种用于数据分析的Pandas技巧,为了更好地描述它们的效果,这里我们用一个数据集辅助进行操作。 数据集:我们研究的主题是贷款预测,请到datahack.analyticsvidhya.com/contest/practice-problem-loan-prediction下载数据(需注册),并开始学习之旅。 预备!开始!
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#Define a generic function using Pandas replace function def coding(col, codeDict): colCoded = pd.Series(col, copy=True) for key, value in codeDict.items(): colCoded.replace(key, value, inplace=True) return colCoded #Coding LoanStatus as Y=1, N=0: ...
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为了解决这个问题,这里我们定义了一个简单的函数,它把输入作为“字典”,然后调用Pandas的replace函数重新编码: #Define a generic function using Pandas replace function def coding(col, codeDict): colCoded = pd.Series(col, copy=True) for key, value in codeDict.items(): colCoded.replace(key, value,...
#用Pandas的replace函数定义一个通用函数 def coding(col, codeDict): colCoded = pd.Series(col, copy=True) for key, value in codeDict.items(): colCoded.replace(key, value, inplace=True) return colCoded #将LoanStatus 编码为 Y=1, N=0: print 'Before Coding:' print pd.value_counts(data...