public static DelimFile KyowaCsv(string path)
{
// format check
if(! IsKyowaCsv(path))
throw new ArgumentException("共和電業のCSVファイルではありません.");
string[] contents = File.ReadAllLines(path, Encoding.Default);
int ncol = kyowa_header_int(contents, KyowaHeaderType.NumberOfChannels);
if(ncol == 0)
throw new ArgumentException("ファイルに間違いがあります．(測定チャンネル数)");
int nrow = kyowa_header_int(contents, KyowaHeaderType.NumberOfData);
// allocate
DelimFile res = new DelimFile(ncol, nrow);
res.headers_ = contents.Take((int)KyowaHeaderType.NumberOfHeader).ToArray();
res.Title = kyowa_header_str(contents, KyowaHeaderType.Title);
var date_time = kyowa_header_str(contents, KyowaHeaderType.DateTime);
DateTime dtm;
if (DateTime.TryParse(date_time, out dtm))
{
res.Time = dtm;
}
else
{
var fi = new FileInfo(path);
res.Time = fi.CreationTime;
}
res.SamplingRate = double.Parse(kyowa_header_str(contents, KyowaHeaderType.SamplingFrequency));
double dt = 1.0 / res.SamplingRate;
res.x_ = Enumerable.Range(0, nrow).Select(i => i * dt).ToArray();
res.dt_ = dt;
res.names_ = kyowa_header(contents, KyowaHeaderType.ChannelNames);
// comments
var cnames = kyowa_header(contents, KyowaHeaderType.ChannelNames);
var cnums = kyowa_header(contents, KyowaHeaderType.ChannelNumbers);
var ranges = kyowa_header(contents, KyowaHeaderType.Ranges);
var factors = kyowa_header(contents, KyowaHeaderType.CalibrationFactor);
var offsets = kyowa_header(contents, KyowaHeaderType.Offsets);
var units = kyowa_header(contents, KyowaHeaderType.Units);
//for (int i = 0; i < ncol; i++)
res.comments_ = res.names_.Select((ttl,i)=>
{
return string.Format("{0} ({1}) レンジ:{2} 校正係数:{3} オフセット：{4}",
cnums[i], units[i], ranges[i], factors[i], offsets[i]);
}).ToArray();
// read data
for(int row = 0; row < nrow; row++)
{
string line = contents[(int)KyowaHeaderType.NumberOfHeader + row];
int col = 0;
foreach (var s in line.Split(',').Skip(1))
{
double.TryParse(s, out res.data_[col++][row]);
}
}
res.opened = true;
return res;
}
public static IWaveFile GeneralCsv(string file_name)
{
string[] contents = File.ReadAllLines(file_name);
double tmp;
string[] headers = contents.TakeWhile(s => s.Length == 0 || s.Split(',').Any(c => !double.TryParse(c, out tmp))).ToArray();
int n_header = headers.Length;
int ncol = contents[headers.Length].Split(',').Length;
int nrow = contents.Skip(n_header).TakeWhile(s => s.Split(',').Count() == ncol).Count();
var res = new DelimFile(ncol, nrow);
var titles = headers.Reverse().TakeWhile(s => s.Split(',').Count() == ncol).Reverse();
res.names_ = Enumerable.Range(0, ncol).Select(i => string.Format("Ch {0}", i)).ToArray();
if (titles.Count() == 0)
{
res.comments_ = res.names_;
}
else
{
res.comments_ = new string[ncol];
var wk = titles.Select(str => str.Split(','));
for (int i = 0; i < ncol; i++)
{
res.comments_[i] = wk.Select(a => a[i]).Aggregate(new StringBuilder(),
(a, b) => a.Append(b)).ToString();
}
}
// read data body
for(int row = 0; row < nrow; row++)
{
var line = contents[row+n_header];
int col = 0;
foreach (var val in line.Split(','))
double.TryParse(val, out res.data_[col++][row]);
}
double dt = res.data_[0][1] - res.data_[0][0];
if (dt != 0.0)
{
res.SamplingRate = 1.0 / dt;
double rounded = Math.Round(res.SamplingRate);
if (Math.Abs(res.SamplingRate - rounded) < 1e-5)
{
res.SamplingRate = rounded;
}
res.x_ = Enumerable.Range(0, nrow).Select(i => i * dt).ToArray();
}
res.opened = true;
return res;
}