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Just another update

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This commit is contained in:
Ingy döt Net 2015-02-20 00:35:01 -05:00
parent a25938f123
commit 00a190b0a6
6591 changed files with 94363 additions and 23227 deletions
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176
Task/Text-processing-1/Go/text-processing-1.go
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@ -1,101 +1,91 @@
package main
import (
"bufio"
"fmt"
"io"
"os"
"strconv"
"strings"
"bufio"
"fmt"
"log"
"os"
"strconv"
"strings"
)
var fn = "readings.txt"
const (
filename = "readings.txt"
readings = 24 // per line
fields = readings*2 + 1 // per line
)
func main() {
f, err := os.Open(fn)
if err != nil {
fmt.Println(err)
return
}
defer f.Close()
var (
badRun, maxRun int
badDate, maxDate string
fileSum float64
fileAccept int
)
for lr := bufio.NewReader(f); ; {
line, pref, err := lr.ReadLine()
if err == io.EOF {
break
}
if err != nil {
fmt.Println(err)
return
}
if pref {
fmt.Println("Unexpected long line.")
return
}
f := strings.Fields(string(line))
if len(f) != 49 {
fmt.Println("unexpected format,", len(f), "fields.")
return
}
var accept int
var sum float64
for i := 1; i < 49; i += 2 {
flag, err := strconv.Atoi(f[i+1])
if err != nil {
fmt.Println(err)
return
}
if flag > 0 { // value is good
if badRun > 0 { // terminate bad run
if badRun > maxRun {
maxRun = badRun
maxDate = badDate
}
badRun = 0
}
value, err := strconv.ParseFloat(f[i], 64)
if err != nil {
fmt.Println(err)
return
}
sum += value
accept++
} else { // value is bad
if badRun == 0 {
badDate = f[0]
}
badRun++
}
}
fmt.Printf("Line: %s Reject %2d Accept: %2d Line_tot:%9.3f",
f[0], 24-accept, accept, sum)
if accept > 0 {
fmt.Printf(" Line_avg:%8.3f\n", sum/float64(accept))
} else {
fmt.Println("")
}
fileSum += sum
fileAccept += accept
}
fmt.Println("\nFile =", fn)
fmt.Printf("Total = %.3f\n", fileSum)
fmt.Println("Readings = ", fileAccept)
if fileAccept > 0 {
fmt.Printf("Average = %.3f\n", fileSum/float64(fileAccept))
}
if badRun > 0 && badRun > maxRun {
maxRun = badRun
maxDate = badDate
}
if maxRun == 0 {
fmt.Println("\nAll data valid.")
} else {
fmt.Printf("\nMax data gap = %d, beginning on line %s.\n",
maxRun, maxDate)
}
file, err := os.Open(filename)
if err != nil {
log.Fatal(err)
}
defer file.Close()
var (
badRun, maxRun int
badDate, maxDate string
fileSum float64
fileAccept int
)
endBadRun := func() {
if badRun > maxRun {
maxRun = badRun
maxDate = badDate
}
badRun = 0
}
s := bufio.NewScanner(file)
for s.Scan() {
f := strings.Fields(s.Text())
if len(f) != fields {
log.Fatal("unexpected format,", len(f), "fields.")
}
var accept int
var sum float64
for i := 1; i < fields; i += 2 {
flag, err := strconv.Atoi(f[i+1])
if err != nil {
log.Fatal(err)
}
if flag <= 0 { // value is bad
if badRun++; badRun == 1 {
badDate = f[0]
}
} else { // value is good
endBadRun()
value, err := strconv.ParseFloat(f[i], 64)
if err != nil {
log.Fatal(err)
}
sum += value
accept++
}
}
fmt.Printf("Line: %s Reject %2d Accept: %2d Line_tot:%9.3f",
f[0], readings-accept, accept, sum)
if accept > 0 {
fmt.Printf(" Line_avg:%8.3f\n", sum/float64(accept))
} else {
fmt.Println()
}
fileSum += sum
fileAccept += accept
}
if err := s.Err(); err != nil {
log.Fatal(err)
}
endBadRun()
fmt.Println("\nFile =", filename)
fmt.Printf("Total = %.3f\n", fileSum)
fmt.Println("Readings = ", fileAccept)
if fileAccept > 0 {
fmt.Printf("Average = %.3f\n", fileSum/float64(fileAccept))
}
if maxRun == 0 {
fmt.Println("\nAll data valid.")
} else {
fmt.Printf("\nMax data gap = %d, beginning on line %s.\n",
maxRun, maxDate)
}
}

89
Task/Text-processing-1/Java/text-processing-1.java Normal file
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@ -0,0 +1,89 @@
import java.io.File;
import java.util.*;
import static java.lang.System.out;
public class TextProcessing1 {
public static void main(String[] args) throws Exception {
Locale.setDefault(new Locale("en", "US"));
Metrics metrics = new Metrics();
int dataGap = 0;
String gapBeginDate = null;
try (Scanner lines = new Scanner(new File("readings.txt"))) {
while (lines.hasNextLine()) {
double lineTotal = 0.0;
int linePairs = 0;
int lineInvalid = 0;
String lineDate;
try (Scanner line = new Scanner(lines.nextLine())) {
lineDate = line.next();
while (line.hasNext()) {
final double value = line.nextDouble();
if (line.nextInt() <= 0) {
if (dataGap == 0)
gapBeginDate = lineDate;
dataGap++;
lineInvalid++;
continue;
}
lineTotal += value;
linePairs++;
metrics.addDataGap(dataGap, gapBeginDate, lineDate);
dataGap = 0;
}
}
metrics.addLine(lineTotal, linePairs);
metrics.lineResult(lineDate, lineInvalid, linePairs, lineTotal);
}
metrics.report();
}
}
private static class Metrics {
private List<String[]> gapDates;
private int maxDataGap = -1;
private double total;
private int pairs;
private int lineResultCount;
void addLine(double tot, double prs) {
total += tot;
pairs += prs;
}
void addDataGap(int gap, String begin, String end) {
if (gap > 0 && gap >= maxDataGap) {
if (gap > maxDataGap) {
maxDataGap = gap;
gapDates = new ArrayList<>();
}
gapDates.add(new String[]{begin, end});
}
}
void lineResult(String date, int invalid, int prs, double tot) {
if (lineResultCount >= 3)
return;
out.printf("%10s out: %2d in: %2d tot: %10.3f avg: %10.3f%n",
date, invalid, prs, tot, (prs > 0) ? tot / prs : 0.0);
lineResultCount++;
}
void report() {
out.printf("%ntotal = %10.3f%n", total);
out.printf("readings = %6d%n", pairs);
out.printf("average = %010.3f%n", total / pairs);
out.printf("%nmaximum run(s) of %d invalid measurements: %n",
maxDataGap);
for (String[] dates : gapDates)
out.printf("begins at %s and ends at %s%n", dates[0], dates[1]);
}
}
}