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Helper API refactor (#40)

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* api cleaup

* updates

* wtf

* updates

* snapshot.

* tweaks

* snapshot

* api tweaks.

* updates

* updates

* updates

* changes.

* updates

* updates

* sequence => seq

* dont need to use curl, just using wget

* fixing examples
This commit is contained in:
Will Charczuk 2017-05-12 17:12:23 -07:00 • committed by GitHub
parent 43212f871f
commit 03708a90ef
100 changed files with 1687 additions and 1055 deletions
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16
ema_series.go
View file

@ -14,7 +14,7 @@ type EMASeries struct {
YAxis YAxisType
Period int
InnerSeries ValueProvider
InnerSeries ValuesProvider
cache []float64
}
@ -52,23 +52,23 @@ func (ema EMASeries) GetSigma() float64 {
return 2.0 / (float64(ema.GetPeriod()) + 1)
}
// GetValue gets a value at a given index.
func (ema *EMASeries) GetValue(index int) (x, y float64) {
// GetValues gets a value at a given index.
func (ema *EMASeries) GetValues(index int) (x, y float64) {
if ema.InnerSeries == nil {
return
}
if len(ema.cache) == 0 {
ema.ensureCachedValues()
}
vx, _ := ema.InnerSeries.GetValue(index)
vx, _ := ema.InnerSeries.GetValues(index)
x = vx
y = ema.cache[index]
return
}
// GetLastValue computes the last moving average value but walking back window size samples,
// GetLastValues computes the last moving average value but walking back window size samples,
// and recomputing the last moving average chunk.
func (ema *EMASeries) GetLastValue() (x, y float64) {
func (ema *EMASeries) GetLastValues() (x, y float64) {
if ema.InnerSeries == nil {
return
}
@ -76,7 +76,7 @@ func (ema *EMASeries) GetLastValue() (x, y float64) {
ema.ensureCachedValues()
}
lastIndex := ema.InnerSeries.Len() - 1
x, _ = ema.InnerSeries.GetValue(lastIndex)
x, _ = ema.InnerSeries.GetValues(lastIndex)
y = ema.cache[lastIndex]
return
}
@ -86,7 +86,7 @@ func (ema *EMASeries) ensureCachedValues() {
ema.cache = make([]float64, seriesLength)
sigma := ema.GetSigma()
for x := 0; x < seriesLength; x++ {
_, y := ema.InnerSeries.GetValue(x)
_, y := ema.InnerSeries.GetValues(x)
if x == 0 {
ema.cache[x] = y
continue