Why doesn't Mathematica completely draw the fit?How to Output Chi-Squared Statistics when using...
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Why doesn't Mathematica completely draw the fit?
How to Output Chi-Squared Statistics when using NonLinearModelFitFindfit doesn't give the good fit; Changing the starting values will not change the resultsFitting data to a complicated functionNonlinearModelFit errors and precisionHow to improve the nonlinear fit to a data setNon-linear-Model-Fit problem in mathematicaNon-linear model fit doesn't like my weightsErrors Using FindFit and FindRootNoLinearModelFit error messageWhy UnitCovert doesn't work with Fit?
$begingroup$
I have a question, and I really need your help, because I think I'm not understanding the reason...
I have a potential model..
F[x_] := k x^n
for the next graphic...
the fits shows a error and it doens't draw the curve completly...
NonlinearModelFit::sszero: The step size in the search has become less than the tolerance prescribed by the PrecisionGoal option, but the gradient is larger than the tolerance specified by the AccuracyGoal option. There is a possibility that the method has stalled at a point that is not a local minimum.
data2={{0.000205, 81.41}, {0.000422, 58.14}, {0.00144, 30.51}, {0.00198,25.93}, {0.00396, 18.98}, {0.00485, 16.83}}
and and I used this...
FindFit[data2, F[x], {k, n}, x]
fitting data modeling
asked 10 hours ago
Chris SchwenkeChris Schwenke
723
$endgroup$
add a comment |
$begingroup$
I have a question, and I really need your help, because I think I'm not understanding the reason...
I have a potential model..
F[x_] := k x^n
for the next graphic...
the fits shows a error and it doens't draw the curve completly...
NonlinearModelFit::sszero: The step size in the search has become less than the tolerance prescribed by the PrecisionGoal option, but the gradient is larger than the tolerance specified by the AccuracyGoal option. There is a possibility that the method has stalled at a point that is not a local minimum.
data2={{0.000205, 81.41}, {0.000422, 58.14}, {0.00144, 30.51}, {0.00198,25.93}, {0.00396, 18.98}, {0.00485, 16.83}}
and and I used this...
FindFit[data2, F[x], {k, n}, x]
fitting data modeling
asked 10 hours ago
Chris SchwenkeChris Schwenke
723
$endgroup$
$begingroup$
Provide the code (copy and paste form) and the data that you used.
$endgroup$
– Bob Hanlon
9 hours ago
$begingroup$
try using explicit plot range:Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006}, PlotRange -> {{0, .006}, {0, 90}}, Epilog -> {Red, PointSize[Large], Point@data2}]?
$endgroup$
– kglr
9 hours ago
add a comment |
$begingroup$
I have a question, and I really need your help, because I think I'm not understanding the reason...
I have a potential model..
F[x_] := k x^n
for the next graphic...
the fits shows a error and it doens't draw the curve completly...
NonlinearModelFit::sszero: The step size in the search has become less than the tolerance prescribed by the PrecisionGoal option, but the gradient is larger than the tolerance specified by the AccuracyGoal option. There is a possibility that the method has stalled at a point that is not a local minimum.
data2={{0.000205, 81.41}, {0.000422, 58.14}, {0.00144, 30.51}, {0.00198,25.93}, {0.00396, 18.98}, {0.00485, 16.83}}
and and I used this...
FindFit[data2, F[x], {k, n}, x]
fitting data modeling
asked 10 hours ago
Chris SchwenkeChris Schwenke
723
$endgroup$
I have a question, and I really need your help, because I think I'm not understanding the reason...
I have a potential model..
F[x_] := k x^n
for the next graphic...
the fits shows a error and it doens't draw the curve completly...
NonlinearModelFit::sszero: The step size in the search has become less than the tolerance prescribed by the PrecisionGoal option, but the gradient is larger than the tolerance specified by the AccuracyGoal option. There is a possibility that the method has stalled at a point that is not a local minimum.
data2={{0.000205, 81.41}, {0.000422, 58.14}, {0.00144, 30.51}, {0.00198,25.93}, {0.00396, 18.98}, {0.00485, 16.83}}
and and I used this...
FindFit[data2, F[x], {k, n}, x]
fitting data modeling
fitting data modeling
asked 10 hours ago
Chris SchwenkeChris Schwenke
723
asked 10 hours ago
Chris SchwenkeChris Schwenke
723
edited 9 hours ago
Chris Schwenke
asked 10 hours ago
Chris SchwenkeChris Schwenke
723
asked 10 hours ago
Chris SchwenkeChris Schwenke
723
asked 10 hours ago
Chris SchwenkeChris Schwenke
723
723
$begingroup$
Provide the code (copy and paste form) and the data that you used.
$endgroup$
– Bob Hanlon
9 hours ago
$begingroup$
try using explicit plot range:Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006}, PlotRange -> {{0, .006}, {0, 90}}, Epilog -> {Red, PointSize[Large], Point@data2}]?
$endgroup$
– kglr
9 hours ago
add a comment |
$begingroup$
Provide the code (copy and paste form) and the data that you used.
$endgroup$
– Bob Hanlon
9 hours ago
$begingroup$
try using explicit plot range:Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006}, PlotRange -> {{0, .006}, {0, 90}}, Epilog -> {Red, PointSize[Large], Point@data2}]?
$endgroup$
– kglr
9 hours ago
$begingroup$
Provide the code (copy and paste form) and the data that you used.
$endgroup$
– Bob Hanlon
9 hours ago
$begingroup$
Provide the code (copy and paste form) and the data that you used.
$endgroup$
– Bob Hanlon
9 hours ago
$begingroup$
try using explicit plot range:
Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006}, PlotRange -> {{0, .006}, {0, 90}}, Epilog -> {Red, PointSize[Large], Point@data2}]?$endgroup$
– kglr
9 hours ago
$begingroup$
try using explicit plot range:
Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006}, PlotRange -> {{0, .006}, {0, 90}}, Epilog -> {Red, PointSize[Large], Point@data2}]?$endgroup$
– kglr
9 hours ago
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
Add the option PlotRange (say PlotRange -> {{0, .006}, {0, 90}}), and
use data2 as Epilog:
Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006},
PlotRange -> {{0, .006}, {0, 90}},
Epilog -> {Red, PointSize[Large], Point@data2}]
Alternatively, use Plot first in Show:
Show[Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006},
PlotRange -> {{0, .006}, {0, 90}}],
ListPlot[data2, PlotStyle -> Directive[Red, PointSize[Large]]]]
same picture
answered 9 hours ago
kglrkglr
198k10223449
$endgroup$
$begingroup$
thanks a lot @kglr, it was very helpfull :)
$endgroup$
– Chris Schwenke
8 hours ago
$begingroup$
@ChrisSchwenke, my pleasure. Thank you for the accept.
$endgroup$
– kglr
8 hours ago
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
Add the option PlotRange (say PlotRange -> {{0, .006}, {0, 90}}), and
use data2 as Epilog:
Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006},
PlotRange -> {{0, .006}, {0, 90}},
Epilog -> {Red, PointSize[Large], Point@data2}]
Alternatively, use Plot first in Show:
Show[Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006},
PlotRange -> {{0, .006}, {0, 90}}],
ListPlot[data2, PlotStyle -> Directive[Red, PointSize[Large]]]]
same picture
answered 9 hours ago
kglrkglr
198k10223449
$endgroup$
$begingroup$
thanks a lot @kglr, it was very helpfull :)
$endgroup$
– Chris Schwenke
8 hours ago
$begingroup$
@ChrisSchwenke, my pleasure. Thank you for the accept.
$endgroup$
– kglr
8 hours ago
add a comment |
$begingroup$
Add the option PlotRange (say PlotRange -> {{0, .006}, {0, 90}}), and
use data2 as Epilog:
Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006},
PlotRange -> {{0, .006}, {0, 90}},
Epilog -> {Red, PointSize[Large], Point@data2}]
Alternatively, use Plot first in Show:
Show[Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006},
PlotRange -> {{0, .006}, {0, 90}}],
ListPlot[data2, PlotStyle -> Directive[Red, PointSize[Large]]]]
same picture
answered 9 hours ago
kglrkglr
198k10223449
$endgroup$
$begingroup$
thanks a lot @kglr, it was very helpfull :)
$endgroup$
– Chris Schwenke
8 hours ago
$begingroup$
@ChrisSchwenke, my pleasure. Thank you for the accept.
$endgroup$
– kglr
8 hours ago
add a comment |
$begingroup$
Add the option PlotRange (say PlotRange -> {{0, .006}, {0, 90}}), and
use data2 as Epilog:
Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006},
PlotRange -> {{0, .006}, {0, 90}},
Epilog -> {Red, PointSize[Large], Point@data2}]
Alternatively, use Plot first in Show:
Show[Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006},
PlotRange -> {{0, .006}, {0, 90}}],
ListPlot[data2, PlotStyle -> Directive[Red, PointSize[Large]]]]
same picture
answered 9 hours ago
kglrkglr
198k10223449
$endgroup$
Add the option PlotRange (say PlotRange -> {{0, .006}, {0, 90}}), and
use data2 as Epilog:
Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006},
PlotRange -> {{0, .006}, {0, 90}},
Epilog -> {Red, PointSize[Large], Point@data2}]
Alternatively, use Plot first in Show:
Show[Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006},
PlotRange -> {{0, .006}, {0, 90}}],
ListPlot[data2, PlotStyle -> Directive[Red, PointSize[Large]]]]
same picture
answered 9 hours ago
kglrkglr
198k10223449
answered 9 hours ago
kglrkglr
198k10223449
answered 9 hours ago
kglrkglr
198k10223449
answered 9 hours ago
kglrkglr
198k10223449
198k10223449
$begingroup$
thanks a lot @kglr, it was very helpfull :)
$endgroup$
– Chris Schwenke
8 hours ago
$begingroup$
@ChrisSchwenke, my pleasure. Thank you for the accept.
$endgroup$
– kglr
8 hours ago
add a comment |
$begingroup$
thanks a lot @kglr, it was very helpfull :)
$endgroup$
– Chris Schwenke
8 hours ago
$begingroup$
@ChrisSchwenke, my pleasure. Thank you for the accept.
$endgroup$
– kglr
8 hours ago
$begingroup$
thanks a lot @kglr, it was very helpfull :)
$endgroup$
– Chris Schwenke
8 hours ago
$begingroup$
thanks a lot @kglr, it was very helpfull :)
$endgroup$
– Chris Schwenke
8 hours ago
$begingroup$
@ChrisSchwenke, my pleasure. Thank you for the accept.
$endgroup$
– kglr
8 hours ago
$begingroup$
@ChrisSchwenke, my pleasure. Thank you for the accept.
$endgroup$
– kglr
8 hours ago
add a comment |
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$begingroup$
Provide the code (copy and paste form) and the data that you used.
$endgroup$
– Bob Hanlon
9 hours ago
$begingroup$
try using explicit plot range:
Plot[Evaluate[F[x] /. FindFit[data2, F[x], {k, n}, x]], {x, 0, .006}, PlotRange -> {{0, .006}, {0, 90}}, Epilog -> {Red, PointSize[Large], Point@data2}]?$endgroup$
– kglr
9 hours ago