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GUIstd

GUIstd shows the necessary calculations to obtain the standard deviation in a GUI.

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Syntax

Description

example

out =GUIstd(x) Standard deviation of the first 6 natural numbers.

example

out =GUIstd(x, w) Calculation of standard deviation (using n as denominator).

Examples

Related Examples

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  • Example of weighted standard deviation.

    • (See page 128 of [MRZ]) 

    x=[25:50:175 250 400 750];
    w=[59 69 31 25 8 3 1];
    y=GUIstd(x,w);
    Click here for the graphical output of this example (link to Ro.S.A. website)

    Input Arguments

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    x — vector of numeric data. Vector.

    Vector containing strictly numerical data.

    Data Types: double

    Optional Arguments

    w — weights. Vector or scalar.

    Vector of the same length of x containing the weights (frequencies) assigned to each observation or scalar which specifies the normalization to use.

    If w=1 the denominator of the index corresponds to the number of observations.

    If w=0 (default), the denominator of the index corresponds to the number of observations minus 1, If w is not supplied we assume that all observations have weight equal to 1 and the index is normalized with length(x)-1.

    Example: 1:10

    Data Types: double

    Output Arguments

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    out —detailed output to compute the index. Table

    Table with n+1 rows (where n is the length of x) containing what is shown in the GUI. Last row contains the totals.

    References

    Milioli, M.A., Riani, M., Zani, S. (2019), "Introduzione all'analisi dei dati statistici (Quarta edizione ampliata)". [MRZ]

    Cerioli, A., Milioli, M.A., Riani, M. (2016), "Esercizi di statistica (Quinta edizione)". [CMR]

    See Also

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