Codebook: What Did You Expect?

Codebook
1

Ask here about the “What Did You Expect?” Codebook topic from the “Single-Qubit Gates” module.

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2

Hello again! I am here to ask for the plotter function implementation :smile:

3

Hi @lawun330 ,

Here’s what we use for plotting!

import altair as alt
import pandas as pd


def plotter(shot_vals, results_experiment, results_scaling):
    """Plot the value of the output

    Args:
        shot_vals (np.array[int]): Angles for the x axis.
        results_experiment (np.array[float]): Variances from the experiments
        results_scaling (np.array[float]): Variances computed from scaling function.
    """

    df = pd.DataFrame(
        {
            "shots": shot_vals,
            "experiment": results_experiment,
            "function": results_scaling,
        }
    )

    plot = (
        alt.Chart(df)
        .transform_fold(["experiment", "function"], ["var_type", "variance"])
        .mark_point()
        .encode(x="shots:Q", y="variance:Q", color="var_type:N")
    )

    return plot
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