removeRow

C++ Function Reference

1 Signature

void BigDataStatMeth::removeRow(Eigen::MatrixXd &matrix, unsigned int rowToRemove)

2 Description

Removes a row from an Eigen matrix.

3 Parameters

matrix (Eigen::MatrixXd &): Reference to matrix to modify
rowToRemove (unsigned int): Index of row to remove

4 Details

matrixReference to matrix to modify rowToRemoveIndex of row to remove Implementation details:Shifts remaining rows upResizes matrix to remove last row

5 Caller Graph

6 Source Code

Implementation

File: inst/include/hdf5Utilities/hdf5Utilities.hpp • Lines 345-354

inline void removeRow(Eigen::MatrixXd& matrix, unsigned int rowToRemove)
    {
        unsigned int numRows = matrix.rows()-1;
        unsigned int numCols = matrix.cols();
        
        if( rowToRemove < numRows )
            matrix.block(rowToRemove,0,numRows-rowToRemove,numCols) = matrix.bottomRows(numRows-rowToRemove).eval();
        
        matrix.conservativeResize(numRows,numCols);
    }

7 Usage Example

#include "BigDataStatMeth.hpp"

// Example usage
auto result = removeRow(...);

---
title: "removeRow"
subtitle: "C++ Function Reference"
---

## Signature

```cpp
void BigDataStatMeth::removeRow(Eigen::MatrixXd &matrix, unsigned int rowToRemove)
```

## Description

Removes a row from an Eigen matrix.

## Parameters

- `matrix` (`Eigen::MatrixXd &`): Reference to matrix to modify
- `rowToRemove` (`unsigned int`): Index of row to remove

## Details

matrixReference to matrix to modify rowToRemoveIndex of row to remove
Implementation details:Shifts remaining rows upResizes matrix to remove last row

## Caller Graph

::: {.diagram-section}
<object type="image/svg+xml" data="images/namespace_big_data_stat_meth_a5e29fef215232998153a651719685521_icgraph.svg" class="class-diagram">
  <img src="images/namespace_big_data_stat_meth_a5e29fef215232998153a651719685521_icgraph.svg" alt="Function dependencies"/>
</object>
:::

## Source Code

::: {.callout-note collapse="true"}
### Implementation

**File:** `inst/include/hdf5Utilities/hdf5Utilities.hpp` • **Lines 345-354**

```cpp
inline void removeRow(Eigen::MatrixXd& matrix, unsigned int rowToRemove)
    {
        unsigned int numRows = matrix.rows()-1;
        unsigned int numCols = matrix.cols();
        
        if( rowToRemove < numRows )
            matrix.block(rowToRemove,0,numRows-rowToRemove,numCols) = matrix.bottomRows(numRows-rowToRemove).eval();
        
        matrix.conservativeResize(numRows,numCols);
    }
```
:::

## Usage Example

```cpp
#include "BigDataStatMeth.hpp"

// Example usage
auto result = removeRow(...);
```