X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.spreadsheet%2Fsrc%2Forg%2Fsimantics%2Fspreadsheet%2FSpreadsheetMatrix.java;fp=bundles%2Forg.simantics.spreadsheet%2Fsrc%2Forg%2Fsimantics%2Fspreadsheet%2FSpreadsheetMatrix.java;h=b6896d5ec78f48eaba2984aa59a20b610132f05a;hb=c07a3818f0024e932a27eb85cbfd3f2291475a65;hp=0000000000000000000000000000000000000000;hpb=6c99e980d250fb9201aba93be7dcb1f55564dccd;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.spreadsheet/src/org/simantics/spreadsheet/SpreadsheetMatrix.java b/bundles/org.simantics.spreadsheet/src/org/simantics/spreadsheet/SpreadsheetMatrix.java
new file mode 100644
index 000000000..b6896d5ec
--- /dev/null
+++ b/bundles/org.simantics.spreadsheet/src/org/simantics/spreadsheet/SpreadsheetMatrix.java
@@ -0,0 +1,128 @@
+package org.simantics.spreadsheet;
+
+import java.io.Serializable;
+
+import org.simantics.spreadsheet.solver.formula.FormulaError2;
+
+public class SpreadsheetMatrix implements Serializable {
+
+    private static final long serialVersionUID = 5729700370527844640L;
+
+    private int w;
+    private int h;
+    public Object[] values;
+
+    public SpreadsheetMatrix(int w, int h) {
+        this.w = w;
+        this.h = h;
+        this.values = new Object[w*h];
+    }
+
+    public Object get(int row, int column) {
+        return values[w*row+column];
+    }
+
+    public void set(int row, int column, Object value) {
+        values[w*row+column] = value;
+    }
+
+    public int getWidth() {
+        return w;
+    }
+
+    public int getHeight() {
+        return h;
+    }
+
+    public double sum() {
+        double result = 0;
+        for(int i=0;i<values.length;i++) {
+            Number n = Spreadsheets.asValidNumber(values[i]);
+            if(n != null) result += n.doubleValue();
+        }
+        return result;
+    }
+
+    public Object sumWithFormulaError(){
+        Double result = 0.0;
+        for(int i = 0; i < values.length; i++){
+            Object obj = values[i];
+            if(obj != null){
+                FormulaError2 error = FormulaError2.forObject(obj);
+                if(error!=null) return error.getString();
+
+                Number n = Spreadsheets.asValidNumber(obj);
+                if(n != null) result += n.doubleValue();
+            }
+        }
+        return result;
+    }
+
+    public double average() {
+        double result = 0;
+        double count = 0;
+        for(int i=0;i<values.length;i++) {
+            Number n = Spreadsheets.asValidNumber(values[i]);
+            if(n != null) {
+                result += n.doubleValue();
+                count++;
+            }
+        }
+        if(count == 0) return result;
+        return result / count;
+    }
+
+    public double countOfActualDoubleValues(){
+        double count = 0.0;
+        for(int i = 0; i < values.length; i++){
+            Number n = Spreadsheets.asValidNumber(values[i]);
+            if(n!=null) count++;
+        }
+        return count;
+    }
+
+    public Object productWithFormulaError(){
+        Double result = 1.0;
+        boolean atLeastOne = false;
+        for(int i = 0; i < values.length; i++){
+            Object obj = values[i];
+            if(obj != null){
+                FormulaError2 error = FormulaError2.forObject(obj);
+                if(error!=null) return error.getString();
+
+                Number n = Spreadsheets.asValidNumber(values[i]);
+                if(n != null) {
+                    double dval = n.doubleValue();
+                    if(dval<=0) return FormulaError2.NUM.getString();
+                    result = result*dval;
+                    atLeastOne = true;
+                }
+            }
+        }
+        if(atLeastOne) return result;
+        else return 0.0;
+    }
+
+    public SpreadsheetMatrix pow(Object exponent_) {
+        if(exponent_ instanceof SpreadsheetMatrix) {
+            SpreadsheetMatrix exponent = (SpreadsheetMatrix)exponent_;
+            SpreadsheetMatrix result = new SpreadsheetMatrix(exponent.w, h);
+            for(int i=0;i<h;i++) {
+                for(int j=0;j<exponent.w;j++) {
+                    result.set(i,j, Math.pow(Spreadsheets.asNumber(get(i, 0)),
+                            Spreadsheets.asNumber(exponent.get(0, j))));
+                }
+            }
+            return result;
+        } else {
+            double n = Spreadsheets.asNumber(exponent_);
+            SpreadsheetMatrix result = new SpreadsheetMatrix(w, h);
+            for(int i=0;i<result.values.length;i++) {
+                result.values[i] = Math.pow(Spreadsheets.asNumber(values[i]), n);
+            }
+            return result;
+        }
+    }
+
+
+}
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