x=np.nanifnp.isnan(x):print("x is NaN")else:print("x is not NaN") 1. 2. 3. 4. 5. 6. 7. 使用pandas库中的isna函数: importpandasaspd df=pd.DataFrame({'A':[1,2,np.nan]})ifdf['A'].isna().any():print("DataFrame contains NaN values")else:print("DataFrame does not cont...
代码语言:txt 复制 # 定义函数check_number def check_number(number): if number % 2 == 0: print("偶数") else: print("奇数") # 调用函数check_number并传递参数 check_number(5) 上述示例中,函数check_number接受一个参数number,判断该参数是否为偶数,并输出相应的结果。通过调用函数check_number并...
// Function 'isOdd' that checks if a number is oddfunctionisOdd(num:number):boolean{// Type guard to check if 'num' is a finite numberif(typeofnum==="number"&&isFinite(num)){returnnum%2!==0;// Check if the remainder is not zero (indicating an odd number)}else{returnfalse;// R...
5. Regular Expression – Check if a String is a Float Number Regular expressions (regex) can be used to check if a string matches a certain pattern. In the case of checking if a string is a float, a regex pattern can be created to match the format of a float. # Regular Expression ...
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If isNaN() returns false, the value is a number.Another way is to use the typeof operator. It returns the 'number' string if you use it on a number value:typeof 1 //'number' const value = 2 typeof value //'number'So you can do a conditional check like this:const value = 2...
value = float('nan') if value != value: print("Value is NaN") else: print("Value is not NaN") If the value is NaN, the comparison value != value Conclusion In this article, we explored various methods to check for NaN (Not a Number) values in Python. NaN values are commonly en...
Given a variable, we have to check if a variable is either a Python list, NumPy array, or pandas series.Check whether a given is variable is a Python list, a NumPy array or a Pandas SeriesFor this purpose, you can simply use the type() method by providing the varia...
Check thesizeproperty of the DataFrame, which represents the total number of elements. An empty DataFrame will have a size of zero. Theshapeattribute returns a tuple representing the dimensions of the DataFrame. If either dimension is zero, the DataFrame is considered empty. ...
check_filepython ## 文件检查与处理的Python工具check_file在日常的编程工作中,处理文件是一个常见的任务,而Python作为一门强大的编程语言,提供了丰富的工具和库来完成文件的操作和处理。其中,check_file是一个非常实用的Python工具,它可以帮助我们检查和处理文件。本文将介绍check_file的基本用法,并提供代码示例来说明...