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 # Structure PHXDATAHISTORYLib::DataHistoryVariableStruct

 Last update: 16.07.2025 

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**Definition**: `LIBS/DataExplorer/PHXDataHistory/PHXDataHistory.odl` (line 105)

The [DataHistoryVariableStruct](structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct.md#structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct) is used to store the data and metadata for a variable. used by addVariableStruct

## Members

- [index](structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct.md#structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct_1a331317f8f767933429cce81e8ada5385)
- [isModified](structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct.md#structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct_1a0e1c5e9cd74d1f2516fc1d35eea45b17)
- [isValid](structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct.md#structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct_1a55153c5a8cc53d611839b0b55bb3e8a2)
- [metadata](structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct.md#structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct_1adad4bb3cc571df3df8a8df37d634fe72)
- [varValue](structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct.md#structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct_1a44619a37f14a5ff181483dcf993d1424)

## Public attributes

<a id="structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct_1a331317f8f767933429cce81e8ada5385"></a>

### Variable index

![](https://img.shields.io/badge/-public-brightgreen "public")

**Definition**: `LIBS/DataExplorer/PHXDataHistory/PHXDataHistory.odl` (line 110)

```
VARIANT PHXDATAHISTORYLib::DataHistoryVariableStruct::index

```

Either a 0 based index to the Variable, or the name of a Variable.

**Type**: VARIANT

<a id="structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct_1a44619a37f14a5ff181483dcf993d1424"></a>

### Variable varValue

![](https://img.shields.io/badge/-public-brightgreen "public")

**Definition**: `LIBS/DataExplorer/PHXDataHistory/PHXDataHistory.odl` (line 114)

```
VARIANT PHXDATAHISTORYLib::DataHistoryVariableStruct::varValue

```

The value of the Variable.

**Type**: VARIANT

<a id="structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct_1a55153c5a8cc53d611839b0b55bb3e8a2"></a>

### Variable isValid

![](https://img.shields.io/badge/-public-brightgreen "public")

**Definition**: `LIBS/DataExplorer/PHXDataHistory/PHXDataHistory.odl` (line 118)

```
boolean PHXDATAHISTORYLib::DataHistoryVariableStruct::isValid

```

Whether this value is valid.

**Type**: boolean

<a id="structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct_1a0e1c5e9cd74d1f2516fc1d35eea45b17"></a>

### Variable isModified

![](https://img.shields.io/badge/-public-brightgreen "public")

**Definition**: `LIBS/DataExplorer/PHXDataHistory/PHXDataHistory.odl` (line 122)

```
boolean PHXDATAHISTORYLib::DataHistoryVariableStruct::isModified

```

Whether this value's modified flag is set.

**Type**: boolean

<a id="structPHXDATAHISTORYLib_1_1DataHistoryVariableStruct_1adad4bb3cc571df3df8a8df37d634fe72"></a>

### Variable metadata

![](https://img.shields.io/badge/-public-brightgreen "public")

**Definition**: `LIBS/DataExplorer/PHXDataHistory/PHXDataHistory.odl` (line 126)

```
DataHistoryVariableMetadataStruct PHXDATAHISTORYLib::DataHistoryVariableStruct::metadata

```

The metadata for the Variable

**Type**: [DataHistoryVariableMetadataStruct](structPHXDATAHISTORYLib_1_1DataHistoryVariableMetadataStruct.md#structPHXDATAHISTORYLib_1_1DataHistoryVariableMetadataStruct)