FrequencyEntry getEntry(String key) {
for (FrequencyEntry fe : entries) {
if (fe.getKey().equals(key)) {
return fe;
}
}
return null;
}
List<ChartCategory> getCategories() {
List<ChartCategory> map = new ArrayList<ChartCategory>();
for (FrequencyEntry fe : getEntries()) {
ChartCategory cat = new ChartCategory<String>(fe.getKey());
map.add(cat);
}
return map;
}
long getMax() {
long max = Integer.MIN_VALUE;
for (FrequencyEntry fe : this.getEntries()) {
if (fe.getFrequency() > max) {
max = fe.getFrequency();
}
}
return max;
}
/**
* LogY flag indicates that the log of each value will later be taken. This should be used for
* "show original frequencies" in order to get an accurate difference (as it is stacked on top of
* current frequencies). Do not use otherwise.
*/
static ChartFrequencyMap subtract(ChartFrequencyMap map1, ChartFrequencyMap map2, boolean logY) {
ChartFrequencyMap result = new ChartFrequencyMap();
for (FrequencyEntry fe1 : map1.entries) {
FrequencyEntry fe2 = map2.getEntry(fe1.getKey());
if (fe2 == null) {
result.addEntry(fe1.getKey(), fe1.getFrequency());
} else if (logY) {
result.addEntry(
fe1.getKey(),
(long) (Math.pow(10, Math.log10(fe1.getFrequency()) - Math.log10(fe2.getFrequency()))));
} else {
result.addEntry(fe1.getKey(), fe1.getFrequency() - fe2.getFrequency());
}
}
return result;
}
