public MatrisBase <dynamic> Range(float start,
float end,
float interval = 1,
int axis = 0,
int digits = 6)
{
if (start > end)
{
throw new Exception(CompilerMessage.MAT_START_END_ORDER);
}
if (interval > end - start)
{
throw new Exception(CompilerMessage.MAT_INTERVAL_INVALID);
}
if (axis != 0 && axis != 1)
{
throw new Exception(CompilerMessage.ARG_INVALID_VALUE("axis", "Satır vektör için 0, sütun vekör için 1 olmalı."));
}
int amount = Math.Min((int)((end - start) / interval), axis == 0 ? (int)MatrisLimits.forRows : (int)MatrisLimits.forCols);
if (Math.Abs(end - (start + (amount * interval))) > 1e-7)
{
throw new Exception(CompilerMessage.MAT_INTERVAL_EXCESS);
}
List <List <dynamic> > vals = new List <List <dynamic> >();
if (axis == 0)
{
vals.Add(new List <dynamic>());
for (int i = 0; i <= amount; i++)
{
vals[0].Add(Math.Round(start + (interval * i), digits));
}
}
else
{
for (int i = 0; i <= amount; i++)
{
vals.Add(new List <dynamic>()
{
Math.Round(start + (interval * i), digits)
});
}
}
return(new MatrisBase <dynamic>(vals));
}
public MatrisBase <object> Round(MatrisBase <object> A,
int n = 0)
{
if (!A.IsValid())
{
throw new Exception(CompilerMessage.MAT_INVALID_SIZE);
}
CompilerUtils.AssertMatrixValsAreNumbers(A);
return(n < 0
? throw new Exception(CompilerMessage.ARG_INVALID_VALUE("n", " Sıfırdan büyük olmalı."))
: A is Dataframe df
? new Dataframe(A.Round(n).GetValues(),
df.Delimiter,
df.NewLine,
Dataframe.GetCopyOfLabels(df.GetRowLabels()),
Dataframe.GetCopyOfLabels(df.GetColLabels()),
df.GetRowSettings().Copy(),
df.GetColSettings().Copy())
: A.Round(n));
}
public MatrisBase <object> Replace(MatrisBase <object> A,
dynamic old = null,
dynamic with = null,
float TOL = (float)1e-6)
{
if (!A.IsValid())
{
throw new Exception(CompilerMessage.MAT_INVALID_SIZE);
}
if (TOL < 0)
{
throw new Exception(CompilerMessage.ARG_INVALID_VALUE("TOL", " Sıfırdan büyük-eşit olmalı."));
}
List <List <object> > newVals = new List <List <object> >();
int m = A.Row;
int n = A.Col;
List <List <object> > vals = A.GetValues();
if (with is null)
{
with = new None();
}
if (old is null || old is None)
{
for (int i = 0; i < m; i++)
{
newVals.Add(new List <object>());
for (int j = 0; j < n; j++)
{
if (vals[i][j] is null || vals[i][j] is None)
{
newVals[i].Add(with);
}
public MatrisBase <object> SDev(MatrisBase <object> df,
int usePopulation = 0,
int numberOnly = 1)
{
if (!df.IsValid())
{
throw new Exception(CompilerMessage.DF_INVALID_SIZE);
}
if (usePopulation != 0 && usePopulation != 1)
{
throw new Exception(CompilerMessage.ARG_INVALID_VALUE("usePopulation", "Örneklem için 0, popülasyon için 1 olmalı!"));
}
int nr = df.Row;
int nc = df.Col;
if (nr == 1 && usePopulation == 1)
{
usePopulation = 0;
}
List <object> means = Mean(df).RowList(1);
List <object> sdevs = new List <object>();
List <List <object> > vals = df.GetValues();
int pop;
for (int j = 0; j < nc; j++)
{
float sdev = 0;
float mean = (float)means[j];
if (float.IsNaN(mean))
{
if (numberOnly == 1)
{
sdevs.Add(0);
}
else
{
sdevs.Add(float.NaN);
}
continue;
}
for (int i = 0; i < nr; i++)
{
if (float.TryParse(vals[i][j].ToString(), out float res))
{
if (numberOnly == 1 && float.IsNaN(res))
{
continue;
}
sdev += (float)Math.Pow(res - mean, 2);
}
else
{
if (numberOnly == 1)
{
continue;
}
else
{
sdev = float.NaN;
break;
}
}
}
pop = nr - usePopulation - (numberOnly == 1 ? df.AmountOfNanInColumn(j) : 0);
if (pop == 0)
{
sdevs.Add(0);
}
else
{
sdevs.Add((float)Math.Pow(sdev * (1.0 / pop), 0.5));
}
}
return(df is Dataframe data
? new Dataframe(new List <List <object> >()
{
sdevs
},
data.Delimiter,
data.NewLine,
null,
Dataframe.GetCopyOfLabels(data.GetColLabels()),
null,
data.GetColSettings().Copy())
: new MatrisBase <object>(new List <List <object> >()
{
sdevs
}));
}
public MatrisBase <object> Shuffle(MatrisBase <object> A,
int axis = 2)
{
if (!A.IsValid())
{
throw new Exception(CompilerMessage.MAT_INVALID_SIZE);
}
int m = A.Row;
int n = A.Col;
if (m == 1 && n == 1)
{
return(A is Dataframe ? ((Dataframe)A.Copy()) : A.Copy());
}
if (axis == 0)
{
if (m == 1)
{
return(A is Dataframe ? ((Dataframe)A.Copy()) : A.Copy());
}
List <int> indices = new List <int>();
for (int c = 0; c < m; c++)
{
indices.Add(c);
}
indices = indices.OrderBy(x => Guid.NewGuid()).ToList();
List <List <object> > newvals = new List <List <object> >();
List <List <object> > vals = A.GetValues();
int i = 0;
foreach (int k in indices)
{
newvals.Add(new List <object>());
for (int j = 0; j < n; j++)
{
newvals[i].Add(vals[k][j]);
}
i++;
}
return(A is Dataframe data
? new Dataframe(newvals,
data.Delimiter,
data.NewLine,
null,
Dataframe.GetCopyOfLabels(data.GetColLabels()),
null,
data.GetColSettings().Copy(),
true)
: new MatrisBase <object>(newvals));
}
else if (axis == 1)
{
if (n == 1)
{
return(A is Dataframe ? ((Dataframe)A.Copy()) : A.Copy());
}
List <int> indices = new List <int>();
for (int c = 0; c < n; c++)
{
indices.Add(c);
}
indices = indices.OrderBy(x => Guid.NewGuid()).ToList();
List <List <object> > newvals = new List <List <object> >();
List <List <object> > vals = A.GetValues();
for (int i = 0; i < m; i++)
{
newvals.Add(new List <object>());
foreach (int k in indices)
{
newvals[i].Add(vals[i][k]);
}
}
return(A is Dataframe data
? new Dataframe(newvals,
data.Delimiter,
data.NewLine,
Dataframe.GetCopyOfLabels(data.GetRowLabels()),
null,
data.GetRowSettings().Copy(),
null,
true)
: new MatrisBase <object>(newvals));
}
else if (axis == 2)
{
if (m == 1)
{
return(Shuffle(A, 1));
}
else if (n == 1)
{
return(Shuffle(A, 0));
}
List <int> indices = new List <int>();
for (int k = 0; k < n * m; k++)
{
indices.Add(k);
}
indices = indices.OrderBy(x => Guid.NewGuid()).ToList();
List <List <object> > newvals = new List <List <object> >();
List <List <object> > vals = A.GetValues();
int c = 0;
int r = -1;
foreach (int k in indices)
{
if (c % n == 0)
{
newvals.Add(new List <object>());
r++;
}
newvals[r].Add(vals[k / n][k % n]);
c++;
}
return(A is Dataframe data
? new Dataframe(newvals,
data.Delimiter,
data.NewLine,
forceLabelsWhenNull: true)
: new MatrisBase <object>(newvals));
}
else
{
throw new Exception(CompilerMessage.ARG_INVALID_VALUE("axis", "Satır: 0, Sütun: 1, Rastgele:2 olmalı"));
}
}
