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# IsEven 類別
<a name="aws-glue-api-pyspark-transforms-IsEven"></a>

 `IsEven` 轉換會在新資料欄中傳回布林值，指示來源資料欄或值是否為偶數。如果來源資料欄或值為小數，則結果為 false。

## 範例
<a name="pyspark-IsEven-examples"></a>

```
from pyspark.context import SparkContext
from pyspark.sql import SparkSession
from awsgluedi.transforms import *

sc = SparkContext()
spark = SparkSession(sc)

input_df = spark.createDataFrame(
    [(5,), (0,), (-1,), (2,), (None,)],
    ["source_column"],
)

try:
    df_output = math_functions.IsEven.apply(
        data_frame=input_df,
        spark_context=sc,
        source_column="source_column",
        target_column="target_column",
        value=None,
        true_string="Even",
        false_string="Not even",
    )
    df_output.show()
except:
    print("Unexpected Error happened ")
    raise
```

## Output
<a name="pyspark-IsEven-output"></a>

 輸出將是：

```
```
+------------+------------+
|source_column|target_column|
+------------+------------+
| 5| Not even|
| 0| Even|
| -1| Not even|
| 2| Even|
| null| null|
+------------+------------+
```
```

 `IsEven` 轉換會將 `source\$1column` 作為 "source\$1column"，並將 `target\$1column` 作為 "target\$1column"。其會檢查 `"source\$1column"` 中的值是否為偶數。如果值為偶數，則會將 `"target\$1column"` 值設定為 `true\$1string` "Even"。如果值為奇數，則會將 `"target\$1column"` 值設定為 `false\$1string` "Not even"。如果 `"source\$1column"` 值為 `null`，`"target\$1column"` 值會設定為 `null`。

 轉換會正確識別偶數 (0 和 2)，並將 `"target\$1column"` 值設定為 "Even"。對於奇數 (5 和 -1)，其會將 `"target\$1column"` 值設定為 "Not even"。對於 `"source\$1column"` 中的 `null` 值，`"target\$1column"` 值設定為 `null`。

## 方法
<a name="aws-glue-api-pyspark-transforms-IsEven-_methods"></a>
+ [\$1\$1call\$1\$1](#aws-glue-api-pyspark-transforms-IsEven-__call__)
+ [apply](#aws-glue-api-crawler-pyspark-transforms-IsEven-apply)
+ [name](#aws-glue-api-crawler-pyspark-transforms-IsEven-name)
+ [describeArgs](#aws-glue-api-crawler-pyspark-transforms-IsEven-describeArgs)
+ [describeReturn](#aws-glue-api-crawler-pyspark-transforms-IsEven-describeReturn)
+ [describeTransform](#aws-glue-api-crawler-pyspark-transforms-IsEven-describeTransform)
+ [describeErrors](#aws-glue-api-crawler-pyspark-transforms-IsEven-describeErrors)
+ [describe](#aws-glue-api-crawler-pyspark-transforms-IsEven-describe)

## \$1\$1call\$1\$1(spark\$1context, data\$1frame, target\$1column, source\$1column=None, true\$1string=DEFAULT\$1TRUE\$1STRING, false\$1string=DEFAULT\$1FALSE\$1STRING, value=None)
<a name="aws-glue-api-pyspark-transforms-IsEven-__call__"></a>

 `IsEven` 轉換會在新資料欄中傳回布林值，指示來源資料欄或值是否為偶數。如果來源資料欄或值為小數，則結果為 false。
+ `source_column` – 現有資料欄的名稱。
+ `target_column` – 要建立的新資料欄的名稱。
+ `true_string` – 指示值是否為偶數的字串。
+ `false_string` – 指示值是否為非偶數的字串。

## apply(cls, \$1args, \$1\$1kwargs)
<a name="aws-glue-api-crawler-pyspark-transforms-IsEven-apply"></a>

繼承自 `GlueTransform` [apply](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-apply)。

## name(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-IsEven-name"></a>

繼承自 `GlueTransform` [name](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-name)。

## describeArgs(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-IsEven-describeArgs"></a>

繼承自 `GlueTransform` [describeArgs](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeArgs)。

## describeReturn(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-IsEven-describeReturn"></a>

繼承自 `GlueTransform` [describeReturn](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeReturn)。

## describeTransform(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-IsEven-describeTransform"></a>

繼承自 `GlueTransform` [describeTransform](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeTransform)。

## describeErrors(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-IsEven-describeErrors"></a>

繼承自 `GlueTransform` [describeErrors](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeErrors)。

## describe(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-IsEven-describe"></a>

繼承自 `GlueTransform` [describe](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describe)。