package ij.measure;
import ij.*;
import ij.plugin.filter.Analyzer;
import ij.text.*;
import ij.process.*;
import ij.gui.Roi;
import ij.util.Tools;
import ij.io.*;
import ij.macro.*;
import java.awt.*;
import java.text.*;
import java.util.*;
import java.io.*;


/** This is a table for storing measurement results and strings as columns of values. 
	Call the static ResultsTable.getResultsTable() method to get a reference to the 
	ResultsTable used by the Analyze/Measure command. 
	@see ij.plugin.filter.Analyzer#getResultsTable
*/
public class ResultsTable implements Cloneable {

	/** Obsolete; use getLastColumn(). */
	public static final int MAX_COLUMNS = 150;
	
	public static final int COLUMN_NOT_FOUND = -1;
	public static final int COLUMN_IN_USE = -2;
	public static final int TABLE_FULL = -3; // no longer used
	public static final short AUTO_FORMAT = Short.MIN_VALUE;
	private static final char commaSubstitute = 0x08B3;
	
	public static final int AREA=0, MEAN=1, STD_DEV=2, MODE=3, MIN=4, MAX=5,
		X_CENTROID=6, Y_CENTROID=7, X_CENTER_OF_MASS=8, Y_CENTER_OF_MASS=9,
		PERIMETER=10, ROI_X=11, ROI_Y=12, ROI_WIDTH=13, ROI_HEIGHT=14,
		MAJOR=15, MINOR=16, ANGLE=17, CIRCULARITY=18, FERET=19, 
		INTEGRATED_DENSITY=20, MEDIAN=21, SKEWNESS=22, KURTOSIS=23, 
		AREA_FRACTION=24, RAW_INTEGRATED_DENSITY=25, CHANNEL=26, SLICE=27, FRAME=28, 
		FERET_X=29, FERET_Y=30, FERET_ANGLE=31, MIN_FERET=32, ASPECT_RATIO=33,
		ROUNDNESS=34, SOLIDITY=35, MIN_THRESHOLD=36, MAX_THRESHOLD=37, LAST_HEADING=37;
	private static final String[] defaultHeadings = {"Area","Mean","StdDev","Mode","Min","Max",
		"X","Y","XM","YM","Perim.","BX","BY","Width","Height","Major","Minor","Angle",
		"Circ.", "Feret", "IntDen", "Median","Skew","Kurt", "%Area", "RawIntDen", "Ch", "Slice", "Frame", 
		 "FeretX", "FeretY", "FeretAngle", "MinFeret", "AR", "Round", "Solidity", "MinThr", "MaxThr"};

	private int maxRows = 100; // will be increased as needed
	private int maxColumns = MAX_COLUMNS; // will be increased as needed
	private String[] headings = new String[maxColumns];
	private boolean[] keep = new boolean[maxColumns];
	private short[] decimalPlaces = new short[maxColumns];
	private int counter;
	private double[][] columns = new double[maxColumns][];
	private String[] rowLabels;
	private int lastColumn = -1;
	private	StringBuilder sb;
	private short precision = 3;
	private String rowLabelHeading = "";
	private char delimiter = '\t';
	private boolean headingSet; 
	private boolean showRowNumbers;
	private Hashtable stringColumns;
	private boolean NaNEmptyCells;
	private boolean quoteCommas;
	private String title;
	private boolean columnDeleted;


	/** Constructs an empty ResultsTable with the counter=0, no columns
		and the precision set to 3 or the "Decimal places" value in
		Analyze/Set Measurements if that value is higher than 3. */
	public ResultsTable() {
		init();
	} 
	
	/** Constructs a ResultsTable with 'nRows' rows. */
	public ResultsTable(Integer nRows) {
		init();
		for (int i=0; iprecision)
			precision = (short)p;
		for (int i=0; i0.*/
	public void addValue(int column, double value) {
		if (column>=maxColumns)
			addColumns();
		if (column<0 || column>=maxColumns)
			throw new IllegalArgumentException("Column out of range");
		if (counter==0)
			throw new IllegalArgumentException("Counter==0");
		if (columns[column]==null) {
			columns[column] = new double[maxRows];
			if (NaNEmptyCells)
				Arrays.fill(columns[column], Double.NaN);
			if (headings[column]==null)
				headings[column] = "C"+(column+1);
			if (column>lastColumn) lastColumn = column;
		}
		columns[column][counter-1] = value;
		if (counter<25) {
			if ((int)value!=value && !Double.isNaN(value))
				decimalPlaces[column] = (short)precision;
		}
	}
	
	/** Adds a value to the end of the given column. If the column
		does not exist, it is created.  Counter must be >0.
		There is an example at:

		http://imagej.nih.gov/ij/plugins/sine-cosine.html
		*/
	public void addValue(String column, double value) {
		if (column==null)
			throw new IllegalArgumentException("Column is null");
		int index = getColumnIndex(column);
		if (index==COLUMN_NOT_FOUND)
			index = getFreeColumn(column);
		addValue(index, value);
		keep[index] = true;
	}
	
	/** Adds a string value to the end of the given column. If the column
		does not exist, it is created.  Counter must be >0. */
	public void addValue(String column, String value) {
		if (column==null)
			throw new IllegalArgumentException("Column is null");
		int index = getColumnIndex(column);
		if (index==COLUMN_NOT_FOUND)
			index = getFreeColumn(column);
		addValue(index, Double.NaN);
		setValue(column, size()-1, value);
		keep[index] = true;
	}

	/** Adds a label to the beginning of the current row. Counter must be >0. */
	public void addLabel(String label) {
		if (rowLabelHeading.equals(""))
			rowLabelHeading = "Label";
		addLabel(rowLabelHeading, label);
	}

	/**
	 * @deprecated
	 * Replaced by setValue(String,int,String)
	*/
	public void addLabel(String columnHeading, String label) {
		if (counter==0)
			throw new IllegalArgumentException("Counter==0");
		if (rowLabels==null)
			rowLabels = new String[maxRows];
		rowLabels[counter-1] = label;
		if (columnHeading!=null)
			rowLabelHeading = columnHeading;
	}
	
	/** Adds a label to the beginning of the specified row, 
		or updates an existing lable, where 0<=rowshow()
		to update the window displaying the table. */
	public void setLabel(String label, int row) {
		if (row<0||row>=counter)
			throw new IllegalArgumentException("row>=counter");
		if (rowLabels==null)
			rowLabels = new String[maxRows];
		if (rowLabelHeading.equals(""))
			rowLabelHeading = "Label";
		rowLabels[row] = label;
	}
	
	/** Set the row label column to null if the column label is "Label". */
	public void disableRowLabels() {
		if (rowLabelHeading.equals("Label"))
			rowLabels = null;
	}
	
	/** Returns a copy of the given column as a float array,
		or null if the column is empty. */
	public float[] getColumn(int column) {
		if ((column<0) || (column>=maxColumns))
			throw new IllegalArgumentException("Index out of range: "+column);
		if (columns[column]==null)
			return null;
		else {
			float[] data = new float[counter];
			for (int i=0; i=maxColumns))
			throw new IllegalArgumentException("Index out of range: "+column);
		if (columns[column]==null)
			return null;
		else {
			double[] data = new double[counter];
			for (int i=0; i=maxColumns))
			return false;
		else
			return columns[column]!=null;
	}

	/** Returns the index of the first column with the given heading.
		heading. If not found, returns COLUMN_NOT_FOUND. */
	public int getColumnIndex(String heading) {
		for (int i=0; ilastColumn) lastColumn = i;
				return i;
			}
			if (headings[i].equals(heading))
				return COLUMN_IN_USE;
		}
		addColumns();
		lastColumn++;
		columns[lastColumn] = new double[maxRows];
		if (NaNEmptyCells)
			Arrays.fill(columns[lastColumn], Double.NaN);
		headings[lastColumn] = heading;
		return lastColumn;
	}
	
	/**	Returns the value of the given column and row, where
		column must be less than or equal the value returned by
		getLastColumn() and row must be greater than or equal
		zero and less than the value returned by size(). */
	public double getValueAsDouble(int column, int row) {
		if (column>=maxColumns || row>=counter)
			throw new IllegalArgumentException("Index out of range: "+column+","+row);
		if (columns[column]==null)
			throw new IllegalArgumentException("Column not defined: "+column);
		return columns[column][row];
	}
	
	/**
	* @deprecated
	* replaced by getValueAsDouble
	*/
	public float getValue(int column, int row) {
		return (float)getValueAsDouble(column, row);
	}

	/**	Returns the value of the specified column and row, where
		column is the column heading and row is a number greater
		than or equal zero and less than value returned by size(). 
		Throws an IllegalArgumentException if this ResultsTable
		does not have a column with the specified heading. */
	public double getValue(String column, int row) {
		if (row<0 || row>=size())
			throw new IllegalArgumentException("Row out of range");
		int col = getColumnIndex(column);
		if (col==COLUMN_NOT_FOUND)
			throw new IllegalArgumentException("\""+column+"\" column not found");
		//IJ.log("col: "+col+" "+(col==COLUMN_NOT_FOUND?"not found":""+columns[col]));
		return getValueAsDouble(col,row);
	}
	
	/** Returns 'true' if the specified column exists and is not emptly. */
	public boolean columnExists(String column) {
		int col = getColumnIndex(column);
		if (col==COLUMN_NOT_FOUND)
			return false;
		else
			return (col=size())
			throw new IllegalArgumentException("Row out of range");
		int col = getColumnIndex(column);
		if (col==COLUMN_NOT_FOUND) {
			String label = null;
			if ("Label".equals(column))
				label = getLabel(row);
			if (label!=null)
				return label;
			else
				throw new IllegalArgumentException("\""+column+"\" column not found");
		}
		return getStringValue(col, row);
	}

	/** Returns the string value of the given column and row, where
		column must be less than or equal the value returned by
		getLastColumn() and row must be greater than or equal
		zero and less than the value returned by size(). */
	public String getStringValue(int column, int row) {
		if (column>=maxColumns || row>=counter)
			throw new IllegalArgumentException("Index out of range: "+column+","+row);
		if (columns[column]==null)
			throw new IllegalArgumentException("Column not defined: "+column);
		return getValueAsString(column, row);
	}

	/**	 Returns the label of the specified row. Returns null if the row does not have a label. */
	public String getLabel(int row) {
		if (row<0 || row>=size())
			throw new IllegalArgumentException("Row out of range");
		String label = null;
		if (rowLabels!=null && rowLabels[row]!=null)
				label = rowLabels[row];
		return label;
	}

	/** Sets the value of the given column and row, where
		where 0<=row<counter. If the specified column does 
		not exist, it is created. When adding columns, 
		show() must be called to update the 
		window that displays the table.*/
	public void setValue(String column, int row, double value) {
		if (column==null)
			throw new IllegalArgumentException("Column is null");
		int col = getColumnIndex(column);
		if (col==COLUMN_NOT_FOUND)
			col = getFreeColumn(column);
		setValue(col, row, value);
	}

	/** Sets the value of the given column and row, where
		where 0<=column<=(lastRow+1 and 0<=row<=counter. */
	public void setValue(int column, int row, double value) {
		if (column>=maxColumns)
			addColumns();
		if (column<0 || column>=maxColumns)
			throw new IllegalArgumentException("Column out of range");
		if (row>=counter) {
			if (row==counter)
				incrementCounter();
			else
				throw new IllegalArgumentException("row>counter");
		}
		if (columns[column]==null) {
			columns[column] = new double[maxRows];
			if (NaNEmptyCells)
				Arrays.fill(columns[column], Double.NaN);
			if (column>lastColumn) lastColumn = column;
		}
		columns[column][row] = value;
		if (headings[column]==null)
			headings[column] = "C"+(column+1);
		if ((int)value!=value && !Double.isNaN(value))
			decimalPlaces[column] = (short)precision;
	}

	/** Sets the string value of the given column and row, where
		where 0<=row<counter. If the specified column does 
		not exist, it is created. When adding columns, 
		show() must be called to update the 
		window that displays the table.*/
	public void setValue(String column, int row, String value) {
		if (column==null)
			throw new IllegalArgumentException("Column is null");
		int col = getColumnIndex(column);
		if (col==COLUMN_NOT_FOUND)
			col = getFreeColumn(column);
		setValue(col, row, value);
	}

	/** Sets the string value of the given column and row, where
		where 0<=column<=(lastRow+1 and 0<=row<=counter. */
	public void setValue(int column, int row, String value) {
		setValue(column, row, Double.NaN);
		if (stringColumns==null)
			stringColumns = new Hashtable();
		ArrayList stringColumn = (ArrayList)stringColumns.get(new Integer(column));
		if (stringColumn==null) {
			stringColumn = new ArrayList();
			stringColumns.put(new Integer(column), stringColumn);
		}
		int size = stringColumn.size();
		if (row>=size) {
			for (int i=size; i=maxColumns))
			throw new IllegalArgumentException("Index out of range: "+column);
		return headings[column];
	}

	/** Returns a tab or comma delimited string representing the
		given row, where 0<=row<=counter-1. */
	public String getRowAsString(int row) {
		if ((row<0) || (row>=counter))
			throw new IllegalArgumentException("Row out of range: "+row);
		if (sb==null)
			sb = new StringBuilder(200);
		else
			sb.setLength(0);
		if (showRowNumbers) {
			sb.append(Integer.toString(row+1));
			sb.append(delimiter);
		}
		if (rowLabels!=null) {
			if (rowLabels[row]!=null) {
				String label = rowLabels[row];
				if (delimiter==',')
					label = label.replaceAll(",", ";");
				sb.append(label);
			}
			sb.append(delimiter);
		}
		for (int i=0; i<=lastColumn; i++) {
			if (columns[i]!=null) {
				String value = getValueAsString(i,row);
				if (quoteCommas) {
					if (value.contains(","))
						value = "\""+value+"\"";
				}
				sb.append(value);
				if (i!=lastColumn)
					sb.append(delimiter);
			}
		}
		return new String(sb);
	}
	
	/** Implements the Table.getColumn() macro function. */
	public Variable[] getColumnAsVariables(String column) {
		int col = getColumnIndex(column);
		if (col==COLUMN_NOT_FOUND)
			throw new IllegalArgumentException("\""+column+"\" column not found");
		boolean firstValueNumeric = true;
		int nValues = size();
		Variable[] values = new Variable[nValues];
		for (int row=0; row=0 && row0 && size()>initialSize) {
			for (int c=0; c<=lastColumn; c++) {
				if (c!=col && columns[c]!=null) {
					String heading = headings[c];
					if (heading!=null) {
						for (int i=initialSize; i=0 && row=0)
			s = d2s(n, 0);
		else
			s = d2s(n, precision);
		return s;
	}
		
	/**
	* @deprecated
	* Replaced by addValue(String,double) and setValue(String,int,double)
	*/
	public void setHeading(int column, String heading) {
		if ((column<0) || (column>=headings.length))
			throw new IllegalArgumentException("Column out of range: "+column);
		headings[column] = heading;
		if (columns[column]==null) {
			columns[column] = new double[maxRows];
			if (NaNEmptyCells)
				Arrays.fill(columns[column], Double.NaN);
		}
		if (column>lastColumn) lastColumn = column;
		headingSet = true;
	}
	
	/** Sets the headings used by the Measure command ("Area", "Mean", etc.). */
	public void setDefaultHeadings() {
		for(int i=0; i9) precision=9;
		this.precision = (short)precision;
		for (int i=0; i=headings.length))
			throw new IllegalArgumentException("Column out of range: "+column);
		decimalPlaces[column] = (short)digits;
	}

	/** Set 'true' to initially fill data arrays with NaNs instead of zeros. */
	public void setNaNEmptyCells(boolean NaNEmptyCells) {
		this.NaNEmptyCells = NaNEmptyCells;
	}

	public void showRowNumbers(boolean showNumbers) {
		showRowNumbers = showNumbers;
	}

	private static DecimalFormat[] df;
	private static DecimalFormat[] sf;
	private static DecimalFormatSymbols dfs;

	/** This is a version of IJ.d2s() that uses scientific notation for
		small numbes that would otherwise display as zero. */
	public static String d2s(double n, int decimalPlaces) {
		if (Double.isNaN(n)||Double.isInfinite(n))
			return ""+n;
		if (n==Float.MAX_VALUE) // divide by 0 in FloatProcessor
			return "3.4e38";
		double np = n;
		if (n<0.0) np = -n;
		if ((np<0.001 && np!=0.0 && np<1.0/Math.pow(10,decimalPlaces)) || np>999999999999d || decimalPlaces<0) {
			if (decimalPlaces<0) {
				decimalPlaces = -decimalPlaces;
				if (decimalPlaces>9) decimalPlaces=9;
			} else
				decimalPlaces = 3;
			if (sf==null) {
				if (dfs==null)
					dfs = new DecimalFormatSymbols(Locale.US);
				sf = new DecimalFormat[10];
				sf[1] = new DecimalFormat("0.0E0",dfs);
				sf[2] = new DecimalFormat("0.00E0",dfs);
				sf[3] = new DecimalFormat("0.000E0",dfs);
				sf[4] = new DecimalFormat("0.0000E0",dfs);
				sf[5] = new DecimalFormat("0.00000E0",dfs);
				sf[6] = new DecimalFormat("0.000000E0",dfs);
				sf[7] = new DecimalFormat("0.0000000E0",dfs);
				sf[8] = new DecimalFormat("0.00000000E0",dfs);
				sf[9] = new DecimalFormat("0.000000000E0",dfs);
			}
			return sf[decimalPlaces].format(n); // use scientific notation
		}
		if (decimalPlaces<0) decimalPlaces = 0;
		if (decimalPlaces>9) decimalPlaces = 9;
		if (df==null) {
			dfs = new DecimalFormatSymbols(Locale.US);
			df = new DecimalFormat[10];
			df[0] = new DecimalFormat("0", dfs);
			df[1] = new DecimalFormat("0.0", dfs);
			df[2] = new DecimalFormat("0.00", dfs);
			df[3] = new DecimalFormat("0.000", dfs);
			df[4] = new DecimalFormat("0.0000", dfs);
			df[5] = new DecimalFormat("0.00000", dfs);
			df[6] = new DecimalFormat("0.000000", dfs);
			df[7] = new DecimalFormat("0.0000000", dfs);
			df[8] = new DecimalFormat("0.00000000", dfs);
			df[9] = new DecimalFormat("0.000000000", dfs);
		}
		return df[decimalPlaces].format(n);
	}

	/** Deletes the specified row. */
	public synchronized void deleteRow(int rowIndex) {
		if (counter==0 || rowIndex<0 || rowIndex>counter-1)
			return;
		if (rowLabels!=null) {
			rowLabels[rowIndex] = null;
			for (int i=rowIndex; i0)
				Analyzer.setUnsavedMeasurements(true);
		} else {
			Frame frame = WindowManager.getFrame(windowTitle);
			TextWindow win;
			if (frame!=null && frame instanceof TextWindow) {
				win = (TextWindow)frame;
				if (win!=null) {
					win.toFront();
					WindowManager.setWindow(frame);
				}
			} else {
				int chars = Math.max(size()>0?getRowAsString(0).length():15, getColumnHeadings().length());
				int width = 100 + chars*10;
				if (width<180) width=180;
				if (width>700) width=700;
				if (showRowNumbers)
					width += 50;
				int height = 300;
				if (size()>15) height = 400;
				if (size()>30 && width>300) height = 500;
				win = new TextWindow(windowTitle, "", width, height);
				cloneNeeded = true;
			}
			tp = win.getTextPanel();
			tp.setColumnHeadings(tableHeadings);
			newWindow = tp.getLineCount()==0;
		}
		tp.setResultsTable(cloneNeeded?(ResultsTable)this.clone():this);
		int n = size();
		if (n>0) {
			if (tp.getLineCount()>0) tp.clear();
			for (int i=0; i=getMaxColumns()) {
			addColumns();
		//IJ.log("addColumns: "+getMaxColumns());
		}
		if (last=rt2.getMaxColumns())
				last = rt2.getMaxColumns() - 1;
		}
		for (int i=0; i<=last; i++) {
			//IJ.log(i+"  "+rt2.getColumn(i)+"  "+columns[i]+"  "+rt2.getColumnHeading(i)+"  "+getColumnHeading(i));
			if (rt2.getColumn(i)!=null && columns[i]==null) {
				columns[i] = new double[maxRows];
				if (NaNEmptyCells)
					Arrays.fill(columns[i], Double.NaN);
				headings[i] = rt2.getColumnHeading(i);
				if (i>lastColumn) lastColumn = i;
			} else if (rt2.getColumn(i)==null && columns[i]!=null && !keep[i])
				columns[i] = null;
		}
		if (rt2.getRowLabels()==null)
			rowLabels = null;
		else if (rt2.getRowLabels()!=null && rowLabels==null) {
			rowLabels = new String[maxRows];
			rowLabelHeading = "Label";
		}
		if (size()>0) show("Results");
	}
	
	int getMaxColumns() {
		return maxColumns;
	}
	
	String[] getRowLabels() {
		return rowLabels;
	}
	
	/** Opens a tab or comma delimited text file and returns it 
	* as a ResultsTable, without requiring a try/catch statement.
	* Displays a file open dialog if 'path' is empty or null.
	*/
	public static ResultsTable open2(String path) {
		ResultsTable rt = null;
		try {
			rt = open(path);
		} catch (IOException e) {
			IJ.error("Open Results", e.getMessage());
			rt = null;
		}
		return rt;
	}
	
	/** Opens a tab or comma delimited text file and returns it as a 
	* ResultsTable. Displays a file open dialog if 'path' is empty or null.
	* @see #open2(String)
	*/
	public static ResultsTable open(String path) throws IOException {
		final String lineSeparator =  "\n";
		if (path==null || path.equals("")) {
			OpenDialog od = new OpenDialog("Open Table", "");
			String dir = od.getDirectory();
			String name = od.getFileName();
			if (name==null)
				return null;
			path = dir+name;
		}
		String text = IJ.openAsString(path);
		if (text==null)
			return null;
		if (text.startsWith("Error:"))
			throw new IOException("Error opening "+path);
		boolean csv = path.endsWith(".csv") || path.endsWith(".CSV");
		String cellSeparator =  csv?",":"\t";
		boolean commasReplaced = false;
		if (csv && text.contains("\"")) {
			text = replaceQuotedCommas(text);
			commasReplaced = true;
		}
		String commaSubstitute2 = ""+commaSubstitute;
		String[] lines = text.split(lineSeparator);
		if (lines.length==0)
			throw new IOException("Table is empty or invalid");
		String[] headings = lines[0].split(cellSeparator);
		if (headings.length==1)
			throw new IOException("This is not a tab or comma delimited text file.");
		int numbersInHeadings = 0;
		for (int i=0; i0&&headings[0].equals(" ")?1:0;
		for (int i=0; iResults", ""+"Error saving results:\n   "+e.getMessage());
			return false;
		}
	}

	public void saveAs(String path) throws IOException {
		if (size()==0 && lastColumn<0) return;
		if (path==null || path.equals("")) {
			SaveDialog sd = new SaveDialog("Save Table", "Table", Prefs.defaultResultsExtension());
			String file = sd.getFileName();
			if (file==null) return;
			path = sd.getDirectory() + file;
		}
		boolean csv = path.endsWith(".csv") || path.endsWith(".CSV");
		delimiter = csv?',':'\t';
		PrintWriter pw = null;
		FileOutputStream fos = new FileOutputStream(path);
		BufferedOutputStream bos = new BufferedOutputStream(fos);
		pw = new PrintWriter(bos);
		boolean saveShowRowNumbers = showRowNumbers;
		if (Prefs.dontSaveRowNumbers)	
			showRowNumbers = false;
		if (!Prefs.dontSaveHeaders) {
			String headings = getColumnHeadings();
			pw.println(headings);
		}
		quoteCommas = csv?true:false;
		for (int i=0; i=0 && index newColumnList = new ArrayList();
		String[] variables = interp.getVariableNames();
		for (String variable:variables) {           // check for variables that make a new Column
			int columnNumber = indexOf(columnNames, variable);
			if (columnNumber >= 0)                  // variable is a know column
				columnInUse[columnNumber] = macro.indexOf(variable) >=0;
			else if (Character.isUpperCase(variable.charAt(0))) {
				getFreeColumn(variable);            // create new column
				newColumnList.add(variable);
			}
		}
		String[] newColumns = newColumnList.toArray(new String[0]);
		int[] newColumnIndices = new int[newColumns.length];
		for (int i=0; i='0' && names[i].charAt(0)<='9') // variable must not start with digit
				names[i] = "_"+names[i];
			names[i] = names[i].replaceAll("[^A-Za-z0-9_]","_");    // replace unsuitable characters with underscores
			for (int postfix=0; ; postfix++) {
				boolean isDuplicate = false;
				for (int j=0; j 0)                                    // remove trailing underscore+postfix
					names[i] = names[i].substring(0, names[i].lastIndexOf('_'));
				names[i] += "_"+postfix;                            // add underscore+postfix number
			}
		}
		return names;
	}
	
	public String getTitle() {
		if (title==null && this==Analyzer.getResultsTable())
			title = "Results";
		return title;
	}
	
	public boolean columnDeleted() {
		return columnDeleted;
	}
	
	/** Selects the row in the "Results" table assocuiated with the specified Roi.
		The row number is obtained from the roi name..
	*/
	public static boolean selectRow(Roi roi) {
		if (roi==null)
			return false;	
		String name = roi.getName();
		if (name==null || name.length()>8)
			return false ;
		Frame frame = WindowManager.getFrame("Results");
		if (frame==null)
			return false;
		if (!(frame instanceof TextWindow))
			return false ;
		ResultsTable rt = ((TextWindow)frame).getResultsTable();
		if (rt==null || rt!=Analyzer.getResultsTable())
			return false ;
		double n = Tools.parseDouble(name);
		if (Double.isNaN(n))
			return false;
		int index = (int)n - 1;
		if (index<0 || index>=rt.size())
			return false;
		((TextWindow)frame).getTextPanel().setSelection(index, index);
    	return true;	
    }
		
}