CSV table with many intermediate values, for debugging

tree-water-demand/src/main/java/de/hft/stuttgart/water/TreeWaterDemand.java

 package de.hft.stuttgart.water;
 
+import java.io.BufferedWriter;
 import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.time.Duration;
 import java.time.LocalDateTime;
-import java.time.Month;
+import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.Collectors;
-
 import com.opencsv.CSVReader;
 import com.opencsv.exceptions.CsvException;
 
-public class TreeWaterDemand {
+
+public class TreeWaterDemand
+{
 
 	/**
 	 * Rs/Rso für Nacht = 0.5
+	 *
 	 * @param args
 	 * @throws IOException
 	 * @throws CsvException
@@ -58,13 +62,13 @@ public class TreeWaterDemand {
 		double tr = 0.9;
 
 		LocalDateTime startOfYear = LocalDateTime.of(2005, 1, 1, 0, 0);
-		
+
 		LocalDateTime start = LocalDateTime.of(2005, 1, 1, 0, 0);
 		LocalDateTime end = LocalDateTime.of(2006, 1, 1, 0, 0);
-		
-//		LocalDateTime start = LocalDateTime.of(2005, 4, 1, 0, 0);
-//		LocalDateTime end = LocalDateTime.of(2005, 10, 1, 0, 0);
-		
+
+		//		LocalDateTime start = LocalDateTime.of(2005, 4, 1, 0, 0);
+		//		LocalDateTime end = LocalDateTime.of(2005, 10, 1, 0, 0);
+
 		List<Double> et0us = new ArrayList<>();
 		List<Double> et0s = new ArrayList<>();
 		List<Double> demands = new ArrayList<>();
@@ -73,39 +77,57 @@ public class TreeWaterDemand {
 		System.out.println("Date,ETIa (L/m²/d),ET0 (L/m²/d)");
 		int startHours = (int) Duration.between(startOfYear, start).toHours();
 		int hours = (int) Duration.between(start, end).toHours();
-		for (int i = startHours; i < startHours + hours; i++) {
-			String[] row = csvValues.get(i + 2);
-			double temp = Double.parseDouble(row[tempIndex]);
-			double humidity = Double.parseDouble(row[humidityIndex]);
-			double incomingRadiation = Double.parseDouble(row[irrIndex]);
-			// convert to MJ/h - 1 W = 0.0036 MJ/h
-			incomingRadiation *= 0.0036;
-			double windSpeed = Double.parseDouble(row[windSpeedIndex]);
-			double saturationVaporPressure = e0(temp);
-			double actualVaporPressure = ea(saturationVaporPressure, humidity);
-			int dayOfYear = counter.getDayOfYear();
-			double hourOfDay = counter.getHour() + 0.5;
-			double et0 = et0(temp, actualVaporPressure, incomingRadiation, height, windSpeed, humidity, dayOfYear,
-					hourOfDay, lz, lm);
-			double et0u = et0u(svf, advection, et0);
-			
-			et0s.add(et0);
-//			System.out.println("et0: " + et0);
-//			System.out.println("etia: " + etia);
-			et0us.add(et0u);
-			counter = counter.plusHours(1);
+		DateTimeFormatter f = DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm");
+		try (BufferedWriter bw = Files.newBufferedWriter(Paths.get("all_values.csv"), StandardCharsets.UTF_8)) {
+			bw.write("DateTime;Temperature;Humidity;GHI;WindSpeed;SaturationVaporPressure;ActualVaporPressure;ET0;ET0u\n");
+			bw.write("dd/mm/yyyy HH:MM;[°C];[%];[W/m²];[m/s];[?];[?];[l/h];[l/h]\n");
+			for (int i = startHours; i < startHours + hours; i++) {
+				bw.write(String.format("%s;", counter.format(f)));
+				String[] row = csvValues.get(i + 2);
+				double temp = Double.parseDouble(row[tempIndex]);
+				double humidity = Double.parseDouble(row[humidityIndex]);
+				double incomingRadiation = Double.parseDouble(row[irrIndex]);
+
+				bw.write(String.format("%.1f;", temp));
+				bw.write(String.format("%.0f;", humidity));
+				bw.write(String.format("%.0f;", incomingRadiation));
+
+				// convert to MJ/h - 1 W = 0.0036 MJ/h
+				incomingRadiation *= 0.0036;
+				double windSpeed = Double.parseDouble(row[windSpeedIndex]);
+				double saturationVaporPressure = e0(temp);
+				double actualVaporPressure = ea(saturationVaporPressure, humidity);
+				int dayOfYear = counter.getDayOfYear();
+				double hourOfDay = counter.getHour() + 0.5;
+				double et0 = et0(temp, actualVaporPressure, incomingRadiation, height, windSpeed, humidity, dayOfYear,
+						hourOfDay, lz, lm);
+				double et0u = et0u(svf, advection, et0);
+
+				bw.write(String.format("%.1f;", windSpeed));
+				bw.write(String.format("%.3f;", saturationVaporPressure));
+				bw.write(String.format("%.3f;", actualVaporPressure));
+				bw.write(String.format("%.3f;", et0));
+				bw.write(String.format("%.3f;", et0u));
+
+				et0s.add(et0);
+				//			System.out.println("et0: " + et0);
+				//			System.out.println("etia: " + etia);
+				et0us.add(et0u);
+				counter = counter.plusHours(1);
+				bw.write("\n");
+			}
 		}
-		
-//		System.out.println(rain.stream().collect(Collectors.summarizingDouble(Double::doubleValue)));
-		
+
+		//		System.out.println(rain.stream().collect(Collectors.summarizingDouble(Double::doubleValue)));
+
 		Double et0Sum = et0s.stream().collect(Collectors.summingDouble(Double::doubleValue));
 		System.out.println("Summe aller ET0: " + et0Sum);
-		
-		
+
+
 		Double et0uSum = et0us.stream().collect(Collectors.summingDouble(Double::doubleValue));
 		System.out.println("Summe aller ET0u: " + et0uSum);
 		double et0uFactor = (0.865 * Math.log10(1 / et0uSum) + 3.36);
-		
+
 		for (double et0u : et0us) {
 			double etia = 0;
 			if (et0u > 0) {
@@ -114,13 +136,14 @@ public class TreeWaterDemand {
 			demands.add(etia);
 		}
 
-		System.out.println("Summe aller ETIa: " + demands.stream().collect(Collectors.summingDouble(Double::doubleValue)));
+		System.out
+				.println("Summe aller ETIa: " + demands.stream().collect(Collectors.summingDouble(Double::doubleValue)));
+
+		//		printHourly(start, et0s, demands);
 
-//		printHourly(start, et0s, demands);
-		
-//		printDaily(start, et0s, demands);
+		//		printDaily(start, et0s, demands);
 
-//		test();
+		//		test();
 	}
 
 	private static void printHourly(LocalDateTime start, List<Double> et0s, List<Double> demands) {
@@ -165,9 +188,9 @@ public class TreeWaterDemand {
 	}
 
 	private static double etia(double tr, double et0u, double et0uFactor) {
-//		return 1 * 1.6 * et0u; 
+		//		return 1 * 1.6 * et0u;
 		return tr * 1.25 * et0u * et0uFactor;
-//		return tr * (1.61 * Math.log10(800) - 3.39) * et0u * (0.865 * Math.log10(1 / et0u) + 3.36);
+		//		return tr * (1.61 * Math.log10(800) - 3.39) * et0u * (0.865 * Math.log10(1 / et0u) + 3.36);
 	}
 
 	private static double et0u(double svf, double advection, double et0) {
@@ -184,7 +207,7 @@ public class TreeWaterDemand {
 		double g = g(nominalRadiation, shortWaveRadiation > 0);
 		double n = 0.408 * delta * (nominalRadiation - g)
 				+ gamma * (37 / (temperature + 273)) * windSpeed * (saturationVaporPressure - actualVaporPressure);
-		return n / (delta + gamma * (1 + 0.34  * windSpeed));
+		return n / (delta + gamma * (1 + 0.34 * windSpeed));
 	}
 
 	private static double ea(double saturationVaporPressure, double humidity) {