package com.example;
import com.androidplot.xy.XYStepMode;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import com.androidplot.series.XYSeries;
import com.androidplot.xy.LineAndPointFormatter;
import com.androidplot.xy.XYPlot;
import java.text.DecimalFormat;
import java.text.FieldPosition;
import java.text.NumberFormat;
import java.text.ParsePosition;
public class MyActivity extends Activity {
 @Override
 public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 // some y-values to be plotted. in this example these values are already log values:
 XYSeries s1 = new XYSeries() {
 private Number[] yVals = {0, 1, 2, 3, 2, 4, 3, 2, 3, 2, 1};
 // x == i
 @Override
 public Number getX(int index) {
 return index;
 }
 @Override
 public Number getY(int index) {
 return yVals[index];
 }
 @Override
 public String getTitle() {
 return "Series 1";
 }
 @Override
 public int size() {
 return yVals.length;
 }
 };
 XYPlot plot = (XYPlot) findViewById(R.id.myPlot);
 plot.addSeries(s1, new LineAndPointFormatter(Color.BLACK, null, null));
 // set domain value labels to increment by 1 on each tick
 plot.setDomainStep(XYStepMode.INCREMENT_BY_VAL, 1);
 plot.setDomainValueFormat(new DecimalFormat("00"));
 // set range value labels to increment by one on each tick
 plot.setRangeStep(XYStepMode.INCREMENT_BY_VAL, 1);
 plot.setRangeValueFormat(new NumberFormat() {
 // use engineering notation
 DecimalFormat df = new DecimalFormat("00E00");
 @Override
 public StringBuffer format(double v, StringBuffer stringBuffer, FieldPosition fieldPosition) {
 // expand the log back out to it's original value before passing into df:
 // note that this is a very inefficient way of doing things, but its easier
 // to understand for the sake of this example.
 return df.format(Math.pow(10, v), stringBuffer, fieldPosition);
 }
 // unused
 @Override
 public StringBuffer format(long l, StringBuffer stringBuffer, FieldPosition fieldPosition) { return null;}
 // unused
 @Override
 public Number parse(String s, ParsePosition parsePosition) { return null;}
 });
 }
}

package com.example;
import com.androidplot.xy.XYStepMode;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import com.androidplot.series.XYSeries;
import com.androidplot.xy.LineAndPointFormatter;
import com.androidplot.xy.XYPlot;
import java.text.DecimalFormat;
import java.text.FieldPosition;
import java.text.NumberFormat;
import java.text.ParsePosition;
public class MyActivity extends Activity {
 @Override
 public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 // some y-values to be plotted. in this example these are raw values:
 XYSeries s1 = new XYSeries() {
 private Number[] yVals = {0, 10, 100, 1000, 100, 10000, 1000, 100, 1000, 100, 10};
 // x == i
 @Override
 public Number getX(int index) {
 return index;
 }
 @Override
 public Number getY(int index) {
 return yVals[index];
 }
 @Override
 public String getTitle() {
 return "Series 1";
 }
 @Override
 public int size() {
 return yVals.length;
 }
 };
 XYPlot plot = (XYPlot) findViewById(R.id.myPlot);
 plot.addSeries(s1, new LineAndPointFormatter(Color.BLACK, null, null));
 // set domain value labels to increment by 1 on each tick
 plot.setDomainStep(XYStepMode.INCREMENT_BY_VAL, 1);
 plot.setDomainValueFormat(new DecimalFormat("00"));
 plot.setRangeValueFormat(new DecimalFormat("00E00"));
 }
}