问题描述
我有一个熊猫脚本,正在转换为C#deedle,但无法设置初始值。
#Python Pandas
dat['processorIndex'] = dat['MSAIndex']
dat['opportunityIndex'] = ''
dat['nvdSerialPrefix'] = ''
dat['saleyardNo'] = ''
dat['ownerProducer'] = dat['Producer']
dat['Species'] = 'Bovine'
dat['coldGrader'] = dat['Grader']
dat['hotGrader'] = dat['Grader']
现在C#端:
C# deedle
// Assign some of the new fields
df["processorIndex"] = df["MSAIndex"];
df["nvdSerialPrefix"] = ""; // Does not work
df["saleyardNo"] = ""; // Does not work
df["ownerProducer"] = ""; // Does not work
df["Species"] = df["Species"].SelectValues((string s) => "Bovine"); // Does not work
df["coldGrader"] = df["Grader"];
df["hotGrader"] = df["Grader"];
如何创建新列并设置初始值?
解决方法
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