Coordinate

class pandas::Coordinate

Styling class for DataFrame rendering.

Example

#include <pandas/pandas.h>
using namespace pandas;

// Use Coordinate
Coordinate obj;
// ... operations ...

Constructors

Signature	Location	Example
Coordinate(const std::string& n, const CoordinateValue& v, const std::vector<std::string>& d = {})	pd_xarray.h:74

Indexing / Selection

Signature	Return Type	Location	Example
std::string get_value_str(size_t idx) const	std::string	pd_xarray.h:94	View

Other Methods

Signature	Return Type	Location	Example
size_t size() const	size_t	pd_xarray.h:80	View

Code Examples

The following examples are extracted from the test suite.

get_value_str (pd_test_1_all.cpp:4665)

            auto corr_df = df.corr();

            // Check dimensions
            bool passed = corr_df.nrows() == 2 && corr_df.ncols() == 2;
            if (!passed) {
                std::cout << "  [FAIL] : in pd_test_aggregation_dataframe_corr() : corr should be 2x2" << std::endl;
                throw std::runtime_error("pd_test_aggregation_dataframe_corr failed: corr should be 2x2");
            }

            // Diagonal should be 1.0
            std::string aa = corr_df["A"].get_value_str(0);
            passed = std::abs(std::stod(aa) - 1.0) < 0.001;
            if (!passed) {
                std::cout << "  [FAIL] : in pd_test_aggregation_dataframe_corr() : diagonal should be 1.0" << std::endl;
                throw std::runtime_error("pd_test_aggregation_dataframe_corr failed: diagonal should be 1.0");
            }

            // A-B correlation should be 1.0 (perfect correlation)
            std::string ab = corr_df["B"].get_value_str(0);
            passed = std::abs(std::stod(ab) - 1.0) < 0.001;
            if (!passed) {

size (pd_test_1_all.cpp:22)

#include "../pandas/pd_boolean_array.h"

namespace dataframe_tests {

namespace dataframe_tests_boolean_array {
    void pd_test_boolean_array_constructors() {
        std::cout << "========= BooleanArray: constructors ======================= ";

        // Default constructor
        pandas::BooleanArray arr1;
        if (arr1.size() != 0) {
            std::cout << "  [FAIL] : in pd_test_boolean_array_constructors() : default constructor size != 0" << std::endl;
            throw std::runtime_error("pd_test_boolean_array_constructors failed: default constructor size != 0");
        }

        // Initializer list constructor
        pandas::BooleanArray arr2({
            std::optional<bool>(true),
            std::optional<bool>(false),
            std::nullopt,
            std::optional<bool>(true)