--- /dev/null
+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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