/**
* Sets the value of the existing point (abscissa, value) at index index to y. If the index is
* negative, does not do anything. If the index equals the index of the last element of the signal
* plus one, adds an element (index, y) to the signal at the index index. If the index is greateur
* than the index of the last element of the signal plus one, does not do anything.
*
* @param index index of the exsisting point. If the point does not exists, adds it
* @param y value to be given to the corresponding point (abscissa, value).
*/
public void setValueOf(int index, double y) {
if (index == this.getNbSamples()) {
data.add(index, y);
} else if ((index >= 0) && (index < this.getNbSamples())) {
data.updateByIndex(index, y);
}
}
/**
* Updates an item in the series.
*
* @param x the x-value (<code>null</code> not permitted).
* @param y the y-value (<code>null</code> permitted).
* @throws SeriesException if there is no existing item with the specified x-value.
*/
public void update(Number x, Number y) {
int index = indexOf(x);
if (index < 0) {
throw new SeriesException("No observation for x = " + x);
}
updateByIndex(index, y);
}
/**
* Looks for the element of the given abscissa and sets its value to ordiante. If there is no
* points existing with the given abcisssa, adds a point (abscissa, ordinate) to the signal.
* (actually, this method does the exact same thing as addElement).
*
* @param abscissa abscissa of the considered point
* @param ordinate value to add or update in the signal
*/
public void setElement(double abscissa, double ordinate) {
int index = data.indexOf(abscissa);
if (index < 0) {
data.add(abscissa, ordinate);
} else {
data.updateByIndex(index, ordinate);
}
}