// response variable transform natural log
public void lnT(object o, EventArgs e)
{
double[] newvals = new double[dt.Rows.Count];
string newcolname = "LN[" + dt.Columns[intSelectedColIndex].Caption + "]";
performTOperation(dt, newcolname, intSelectedColIndex, newvals);
dt.Columns[newcolname].ExtendedProperties[VBCommon.Globals.DEPENDENTVARIBLEDEFINEDTRANSFORM] = VBCommon.DependentVariableTransforms.Ln.ToString();
depVarTransform = VBCommon.DependentVariableTransforms.Ln;
state = dtState.dirty;
NotifyContainer();
}
// response variable transform power(exp)
public void powerT(object o, EventArgs e)
{
frmPowerExponent frmExp = new frmPowerExponent(dt, intSelectedColIndex);
DialogResult dlgr = frmExp.ShowDialog();
if (dlgr != DialogResult.Cancel)
{
double[] newvals = new double[dt.Rows.Count];
newvals = frmExp.TransformedValues;
if (frmExp.TransformMessage != "")
{
MessageBox.Show("Cannot Power transform variable. " + frmExp.TransformMessage, "VB Transform Rule", MessageBoxButtons.OK);
return;
}
string sexp = frmExp.Exponent.ToString("n2");
string newcolname = "POWER" + "[" + sexp + "," + dt.Columns[intSelectedColIndex].Caption + "]";
performTOperation(dt, newcolname, intSelectedColIndex, newvals);
dt.Columns[newcolname].ExtendedProperties[VBCommon.Globals.DEPENDENTVARIBLEDEFINEDTRANSFORM] = VBCommon.DependentVariableTransforms.Power.ToString() + "," + sexp;
depVarTransform = VBCommon.DependentVariableTransforms.Power;
dblPowerTransformExp = Convert.ToDouble(sexp);
state = dtState.dirty;
NotifyContainer();
}
}
public void defineTransformForRV(object o, EventArgs e)
{
//menu response from right click, determine which transform was selected
MenuItem mi = (MenuItem)o;
string transform = mi.Text;
if (transform == VBCommon.DependentVariableTransforms.Power.ToString())
{
frmPowerExponent frmExp = new frmPowerExponent(dt, intSelectedColIndex);
DialogResult dlgr = frmExp.ShowDialog();
if (dlgr != DialogResult.Cancel)
{
string sexp = frmExp.Exponent.ToString("n2");
transform += "," + sexp;
depVarTransform = VBCommon.DependentVariableTransforms.Power;
dblPowerTransformExp = Convert.ToDouble(sexp);
dt.Columns[intSelectedColIndex].ExtendedProperties[VBCommon.Globals.DEPENDENTVARIBLEDEFINEDTRANSFORM] = transform;
state = dtState.dirty;
NotifyContainer();
}
}
else
{
if (String.Compare(transform, "Log10", true) == 0)
depVarTransform = VBCommon.DependentVariableTransforms.Log10;
else if (String.Compare(transform, "Ln", true) == 0)
depVarTransform = VBCommon.DependentVariableTransforms.Ln;
else if (String.Compare(transform, "none", true) == 0)
depVarTransform = VBCommon.DependentVariableTransforms.none;
dt.Columns[intSelectedColIndex].ExtendedProperties[VBCommon.Globals.DEPENDENTVARIBLEDEFINEDTRANSFORM] = transform;
state = dtState.dirty;
NotifyContainer();
}
}
