Package systole.domain.signals

Examples of systole.domain.signals.Segment.insertElementAt()

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            diff = (segment.elementAt(j + h).subtract(segment.elementAt(j))).divide(new BigDecimal(2 * h),MathUtils.CONTEXT);
            derivated.add(diff);
        }

        diff = derivated.elementAt(1).subtract(derivated.firstElement());
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        return derivated;

    }

    public Segment getSecondDerivative(Segment segment) {
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            diff = (segment.elementAt(j + 2).subtract(two.multiply(segment.elementAt(j + 1))).add(segment.elementAt(j).divide(h.pow(step),MathUtils.CONTEXT)));

            derivated.add(diff);
        }
        diff = derivated.elementAt(1).subtract(derivated.firstElement());
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        return derivated;

    }

    public Segment getThirdDerivative(Segment segment) {
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            derivated.add(diff);
        }

        diff = derivated.elementAt(1).subtract(derivated.firstElement());
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        return derivated;
    }

    public Segment getFourthDerivative(Segment segment) {
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            derivated.add(diff);
        }

        diff = derivated.elementAt(1).subtract(derivated.firstElement());
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        return derivated;
    }

    public Segment getFourthDerivative(Segment segment) {
        int nPoints = segment.size();
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            derivated.add(diff);
        }

         diff = derivated.elementAt(1).subtract(derivated.firstElement());
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        return derivated;
    }
}
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            derivated.add(diff);
        }

         diff = derivated.elementAt(1).subtract(derivated.firstElement());
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        return derivated;
    }
}
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        }

         diff = derivated.elementAt(1).subtract(derivated.firstElement());
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        derivated.insertElementAt(derivated.firstElement().subtract(diff), 0);
        return derivated;
    }
}
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            diff = (segment.elementAt(j + 1).subtract(segment.elementAt(j - 1))).divide((h.multiply(new BigDecimal(2))),MathUtils.CONTEXT);
            // diff = (segment.elementAt(j).doubleValue() - segment.elementAt(j-1).doubleValue());
            derivated.add(diff);
        }
        //continuo el mismo punto para no dejarlo en cero y que las restas sean enormes
        derivated.insertElementAt(derivated.elementAt(1), 0);
        //derivated.insertElementAt(derivated.elementAt(nPoints - 2), nPoints - 1);

        return derivated;
    }
}
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