Stefan Krecher StefanKrecher
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| //@version=2 | |
| study("RSI+MA", overlay=true) | |
| // data series for RSI with length 14 | |
| rsi = rsi(close, 14) | |
| // data series for Moving Average with length 9 | |
| ma = sma(close, 9) | |
| // data series for buy signals: | |
| //price should be below the moving average and RSI should be smaller than 40 |
StefanKrecher
/ SmalltalkGroovyExample.groovy
Last active
August 29, 2015 14:21
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| // Booleans | |
| false.ifTrue { assert false }.ifFalse { assert true }; | |
| // Exceptions | |
| {-> throw new NullPointerException("Buh!") }.on(NullPointerException).do { e -> | |
| assert e in Exception | |
| assert e in NullPointerException | |
| assert !(e in ArithmeticException) |
StefanKrecher
/ Smalltalk.groovy
Last active
August 29, 2015 14:21
Smalltalkify Groovy: ifTrue/ ifFalse, on Exception do
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| class Smalltalk { | |
| static Boolean ifTrue (Boolean self, Closure c) { | |
| if(self) c() | |
| self | |
| } | |
| static Boolean ifFalse (Boolean self, Closure c) { | |
| if(!self) c() | |
| self | |
| } | |
| static Boolean 'do' (Boolean self, Closure c) { |
StefanKrecher
/ workspace.st
Created
September 19, 2012 15:34
simple workspace for GNU Smalltalk on Android
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| PackageLoader fileInPackage: 'Android'. | |
| | layout event droid samples | | |
| droid := Android new. | |
| layout := '<?xml version="1.0" encoding="utf-8"?> | |
| <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" | |
| android:id="@+id/background" | |
| android:orientation="vertical" | |
| android:layout_width="match_parent" | |
| android:layout_height="wrap_content" |
StefanKrecher
/ GET-Request+JFrame.st
Created
January 5, 2012 15:13
Ambrhino (Smalltalk/Amber-, Java-, Javascript-Mixture) example: makes HTTP-GET-Request & display result on a JFrame
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| | url con is isr br line content pane frame | | |
| <importPackage(java.net)>. | |
| <importPackage(java.io)>. | |
| url := <new URL('http://www.esvapi.org/v2/rest/passageQuery?key=IP&passage=Psalm+23&include-headings=false')>. | |
| con := url openConnection. | |
| is := con getInputStream. | |
| isr := <new InputStreamReader(is)>. | |
| br := <new BufferedReader(isr)>. | |
| content := ''. | |
| line := ''. |