Added creation of custom fit scripts

.gitignore

@@ -54,6 +54,8 @@ hs_err_pid*
 # Project files
 *.data
 
+gnuplot/created
+
 # Output files
 *.png
 *.ps

gnuplot/fit.plt

@@ -2,21 +2,19 @@
 # R^2 calculation from: http://computingnote.blogspot.co.uk/2013/04/calculating-r2-with-gnuplot.html
 
 mean(x)= m
-fit mean(x) "test~2017-02-27-21-02.data" using 1:2 via m # FIXME
+fit mean(x) "REPLACE" using 1:2 via m
 SST = FIT_WSSR/(FIT_NDF+1)
 
 f(x) = (k*x**-b)*exp(-x/c)
 k=1
 b=1
 c=1
-fit f(x) "test~2017-02-27-21-02.data" via b,k,c # FIXME
+fit f(x) "REPLACE" via b,k,c
 SSE=FIT_WSSR/(FIT_NDF)
 
 SSR=SST-SSE
 R2=SSR/SST
 
-#set label sprintf("f(x)=%fx+%f\nR²=%f", a, b, R2) # print r^2.
-
 set label 1 sprintf("β=%3.5g; R^2=%f",b,R2) at 50,1.1
 
-plot "test~2017-02-27-21-02.data" title "data", f(x) title "fit" # FIXME
+plot "REPLACE" title "data", f(x) title "fit"

gnuplot/setup.plt

@@ -2,6 +2,6 @@
 set logscale x
 set logscale y
 set xrange [1:]
-set yrange [:1]
+set yrange [:2]
 set xlabel "a"
 set ylabel "P(A≥a)"

src/main/java/output/FitScriptCreator.java

@@ -0,0 +1,51 @@
+package output;
+
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import static java.nio.file.StandardCopyOption.COPY_ATTRIBUTES;
+import static java.nio.file.StandardCopyOption.REPLACE_EXISTING;
+
+public class FitScriptCreator {
+    private static final String REPLACE_STRING = "REPLACE";
+    private static final String FILE_TYPE = ".data";
+    private static final Path FIT_SCRIPT_PATH = Paths.get("ThirdYearProject/gnuplot/fit.plt");
+    private static final String CREATED_DIRECTORY_PATH_STRING = "ThirdYearProject/gnuplot/created/";
+
+    public static void main(String[] args) throws IOException {
+        System.out.println("Run from outside ThirdYearProject");
+        if (!(args[0].startsWith("ThirdYearProject/"))) {
+            System.out.println("Filepath argument must start with ThirdYearProject/");
+            throw new IllegalArgumentException();
+        }
+        String dataFilePathString = args[0];
+
+        createFor(Paths.get(dataFilePathString));
+
+    }
+
+    public static void createFor(Path dataFilePath) throws IOException {
+        String filename = dataFilePath.getFileName().toString();
+        filename = "fit_" + filename.substring(0, filename.length() - FILE_TYPE.length());
+        Path createdFitScript = Paths.get(CREATED_DIRECTORY_PATH_STRING + filename);
+        Files.copy(FIT_SCRIPT_PATH, createdFitScript, REPLACE_EXISTING, COPY_ATTRIBUTES);
+
+        replaceFilename(createdFitScript, dataFilePath);
+    }
+
+    private static void replaceFilename(Path fitScript, Path dataFilePath) throws IOException {
+        Charset charset = StandardCharsets.UTF_8;
+
+        String content = new String(Files.readAllBytes(fitScript), charset);
+        String relativeFilePath = fitScript.getParent().relativize(dataFilePath).toString();
+        relativeFilePath = relativeFilePath.replace("\\", "/");
+        System.out.println(relativeFilePath);
+        content = content.replaceAll(REPLACE_STRING, relativeFilePath);
+        System.out.println(content);
+        Files.write(fitScript, content.getBytes(charset));
+    }
+}