498da3221e
git-svn-id: svn://kolibrios.org@8859 a494cfbc-eb01-0410-851d-a64ba20cac60
238 lines
5.1 KiB
Plaintext
238 lines
5.1 KiB
Plaintext
(* ********************************************
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Дополнение к модулю Math.
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Статистические процедуры.
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-------------------------------------
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Additional functions to the module Math.
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Statistical functions
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*********************************************** *)
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MODULE MathStat;
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IMPORT Math;
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(*Минимальное значение. Нецелое *)
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PROCEDURE MinValue* (data: ARRAY OF REAL; N: INTEGER): REAL;
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VAR
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i: INTEGER;
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a: REAL;
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BEGIN
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a := data[0];
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FOR i := 1 TO N - 1 DO
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IF data[i] < a THEN
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a := data[i]
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END
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END
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RETURN a
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END MinValue;
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(*Минимальное значение. Целое *)
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PROCEDURE MinIntValue* (data: ARRAY OF INTEGER; N: INTEGER): INTEGER;
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VAR
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i: INTEGER;
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a: INTEGER;
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BEGIN
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a := data[0];
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FOR i := 1 TO N - 1 DO
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IF data[i] < a THEN
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a := data[i]
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END
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END
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RETURN a
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END MinIntValue;
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(*Максимальное значение. Нецелое *)
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PROCEDURE MaxValue* (data: ARRAY OF REAL; N: INTEGER): REAL;
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VAR
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i: INTEGER;
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a: REAL;
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BEGIN
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a := data[0];
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FOR i := 1 TO N - 1 DO
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IF data[i] > a THEN
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a := data[i]
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END
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END
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RETURN a
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END MaxValue;
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(*Максимальное значение. Целое *)
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PROCEDURE MaxIntValue* (data: ARRAY OF INTEGER; N: INTEGER): INTEGER;
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VAR
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i: INTEGER;
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a: INTEGER;
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BEGIN
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a := data[0];
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FOR i := 1 TO N - 1 DO
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IF data[i] > a THEN
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a := data[i]
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END
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END
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RETURN a
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END MaxIntValue;
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(* Сумма значений массива *)
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PROCEDURE Sum* (data: ARRAY OF REAL; Count: INTEGER): REAL;
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VAR
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a: REAL;
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i: INTEGER;
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BEGIN
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a := 0.0;
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FOR i := 0 TO Count - 1 DO
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a := a + data[i]
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END
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RETURN a
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END Sum;
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(* Сумма целых значений массива *)
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PROCEDURE SumInt* (data: ARRAY OF INTEGER; Count: INTEGER): INTEGER;
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VAR
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a: INTEGER;
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i: INTEGER;
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BEGIN
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a := 0;
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FOR i := 0 TO Count - 1 DO
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a := a + data[i]
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END
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RETURN a
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END SumInt;
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(* Сумма квадратов значений массива *)
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PROCEDURE SumOfSquares* (data : ARRAY OF REAL; Count: INTEGER): REAL;
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VAR
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a: REAL;
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i: INTEGER;
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BEGIN
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a := 0.0;
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FOR i := 0 TO Count - 1 DO
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a := a + Math.sqrr(data[i])
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END
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RETURN a
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END SumOfSquares;
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(* Сумма значений и сумма квадратов значений массмва *)
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PROCEDURE SumsAndSquares* (data: ARRAY OF REAL; Count : INTEGER;
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VAR sum, sumofsquares : REAL);
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VAR
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i: INTEGER;
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temp: REAL;
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BEGIN
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sumofsquares := 0.0;
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sum := 0.0;
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FOR i := 0 TO Count - 1 DO
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temp := data[i];
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sumofsquares := sumofsquares + Math.sqrr(temp);
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sum := sum + temp
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END
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END SumsAndSquares;
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(* Средниее значений массива *)
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PROCEDURE Mean* (data: ARRAY OF REAL; Count: INTEGER): REAL;
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RETURN Sum(data, Count) / FLT(Count)
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END Mean;
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PROCEDURE MeanAndTotalVariance* (data: ARRAY OF REAL; Count: INTEGER;
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VAR mu: REAL; VAR variance: REAL);
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VAR
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i: INTEGER;
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BEGIN
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mu := Mean(data, Count);
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variance := 0.0;
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FOR i := 0 TO Count - 1 DO
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variance := variance + Math.sqrr(data[i] - mu)
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END
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END MeanAndTotalVariance;
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(* Вычисление статистической дисперсии равной сумме квадратов разницы
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между каждым конкретным значением массива Data и средним значением *)
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PROCEDURE TotalVariance* (data: ARRAY OF REAL; Count: INTEGER): REAL;
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VAR
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mu, tv: REAL;
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BEGIN
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MeanAndTotalVariance(data, Count, mu, tv)
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RETURN tv
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END TotalVariance;
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(* Типовая дисперсия всех значений массива *)
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PROCEDURE Variance* (data: ARRAY OF REAL; Count: INTEGER): REAL;
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VAR
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a: REAL;
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BEGIN
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IF Count = 1 THEN
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a := 0.0
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ELSE
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a := TotalVariance(data, Count) / FLT(Count - 1)
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END
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RETURN a
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END Variance;
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(* Стандартное среднеквадратичное отклонение *)
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PROCEDURE StdDev* (data: ARRAY OF REAL; Count: INTEGER): REAL;
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RETURN Math.sqrt(Variance(data, Count))
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END StdDev;
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(* Среднее арифметическое всех значений массива, и среднее отклонение *)
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PROCEDURE MeanAndStdDev* (data: ARRAY OF REAL; Count: INTEGER;
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VAR mean: REAL; VAR stdDev: REAL);
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VAR
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totalVariance: REAL;
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BEGIN
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MeanAndTotalVariance(data, Count, mean, totalVariance);
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IF Count < 2 THEN
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stdDev := 0.0
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ELSE
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stdDev := Math.sqrt(totalVariance / FLT(Count - 1))
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END
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END MeanAndStdDev;
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(* Евклидова норма для всех значений массива *)
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PROCEDURE Norm* (data: ARRAY OF REAL; Count: INTEGER): REAL;
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VAR
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a: REAL;
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i: INTEGER;
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BEGIN
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a := 0.0;
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FOR i := 0 TO Count - 1 DO
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a := a + Math.sqrr(data[i])
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END
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RETURN Math.sqrt(a)
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END Norm;
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END MathStat. |