- #1
globs123
- 1
- 0
How do I fit the data given below into the standard form (ignore the part saying to use MathCad):
[PLAIN]http://screensnapr.com/u/apmqkd.png
Graph display of above data:
[PLAIN]http://screensnapr.com/u/9k82rt.png
My attempt in Mathematica:
I get this error:
"FindFit::fitd: First argument {{{0.002,0.726},{0.022,0.739},{0.042,0.75},<<5>>,{0.161,0.802},{0.181,0.81},<<244>>}} in FindFit is not a list or a rectangular array. >>"
Can this be done using Mathematica?
Thank you!
[PLAIN]http://screensnapr.com/u/apmqkd.png
Code:
{{{0.002, 0.726}, {0.022, 0.739}, {0.042, 0.75}, {0.062,
0.759}, {0.082, 0.768}, {0.102, 0.776}, {0.121, 0.785}, {0.141,
0.794}, {0.161, 0.802}, {0.181, 0.81}, {0.201, 0.818}, {0.221,
0.826}, {0.24, 0.834}, {0.26, 0.84}, {0.28, 0.847}, {0.3,
0.854}, {0.32, 0.859}, {0.339, 0.864}, {0.359, 0.869}, {0.379,
0.873}, {0.399, 0.877}, {0.419, 0.879}, {0.439, 0.882}, {0.458,
0.883}, {0.478, 0.884}, {0.498, 0.885}, {0.518, 0.884}, {0.538,
0.883}, {0.557, 0.882}, {0.577, 0.88}, {0.597, 0.877}, {0.617,
0.874}, {0.636, 0.87}, {0.656, 0.865}, {0.676, 0.86}, {0.696,
0.855}, {0.716, 0.849}, {0.735, 0.843}, {0.755, 0.836}, {0.775,
0.829}, {0.795, 0.822}, {0.815, 0.814}, {0.834, 0.806}, {0.854,
0.799}, {0.874, 0.791}, {0.894, 0.783}, {0.913, 0.774}, {0.933,
0.766}, {0.953, 0.759}, {0.973, 0.751}, {0.993, 0.743}, {1.012,
0.736}, {1.032, 0.729}, {1.052, 0.722}, {1.072, 0.716}, {1.091,
0.71}, {1.111, 0.704}, {1.131, 0.699}, {1.151, 0.694}, {1.171,
0.689}, {1.19, 0.685}, {1.21, 0.683}, {1.23, 0.68}, {1.25,
0.675}, {1.27, 0.676}, {1.289, 0.675}, {1.309, 0.673}, {1.329,
0.676}, {1.349, 0.674}, {1.369, 0.675}, {1.388, 0.68}, {1.408,
0.68}, {1.428, 0.683}, {1.448, 0.689}, {1.468, 0.693}, {1.487,
0.698}, {1.507, 0.703}, {1.527, 0.708}, {1.547, 0.714}, {1.567,
0.719}, {1.586, 0.725}, {1.606, 0.732}, {1.626, 0.739}, {1.646,
0.746}, {1.666, 0.753}, {1.686, 0.76}, {1.705, 0.768}, {1.725,
0.775}, {1.745, 0.782}, {1.765, 0.789}, {1.785, 0.796}, {1.804,
0.803}, {1.824, 0.81}, {1.844, 0.816}, {1.864, 0.822}, {1.884,
0.828}, {1.904, 0.834}, {1.923, 0.839}, {1.943, 0.843}, {1.963,
0.848}, {1.983, 0.852}, {2.003, 0.855}, {2.023, 0.858}, {2.042,
0.861}, {2.062, 0.863}, {2.082, 0.864}, {2.102, 0.865}, {2.121,
0.865}, {2.141, 0.865}, {2.161, 0.865}, {2.181, 0.863}, {2.201,
0.861}, {2.221, 0.859}, {2.24, 0.857}, {2.26, 0.854}, {2.28,
0.85}, {2.3, 0.846}, {2.319, 0.841}, {2.339, 0.837}, {2.359,
0.832}, {2.379, 0.826}, {2.399, 0.82}, {2.418, 0.815}, {2.438,
0.808}, {2.458, 0.802}, {2.478, 0.795}, {2.498, 0.789}, {2.517,
0.782}, {2.537, 0.776}, {2.557, 0.769}, {2.577, 0.762}, {2.596,
0.756}, {2.616, 0.75}, {2.636, 0.744}, {2.656, 0.738}, {2.675,
0.731}, {2.695, 0.727}, {2.715, 0.722}, {2.735, 0.717}, {2.755,
0.712}, {2.774, 0.708}, {2.794, 0.705}, {2.814, 0.702}, {2.834,
0.699}, {2.854, 0.697}, {2.873, 0.695}, {2.893, 0.694}, {2.913,
0.693}, {2.933, 0.693}, {2.953, 0.693}, {2.972, 0.694}, {2.992,
0.695}, {3.012, 0.696}, {3.032, 0.698}, {3.052, 0.701}, {3.071,
0.704}, {3.091, 0.707}, {3.111, 0.71}, {3.131, 0.712}, {3.151,
0.718}, {3.17, 0.724}, {3.19, 0.728}, {3.21, 0.733}, {3.23,
0.739}, {3.25, 0.744}, {3.27, 0.75}, {3.289, 0.756}, {3.309,
0.762}, {3.329, 0.768}, {3.349, 0.774}, {3.369, 0.78}, {3.388,
0.786}, {3.408, 0.792}, {3.428, 0.797}, {3.448, 0.803}, {3.468,
0.808}, {3.488, 0.813}, {3.507, 0.818}, {3.527, 0.822}, {3.547,
0.827}, {3.567, 0.831}, {3.587, 0.835}, {3.606, 0.838}, {3.626,
0.841}, {3.646, 0.844}, {3.666, 0.846}, {3.686, 0.847}, {3.705,
0.848}, {3.725, 0.849}, {3.745, 0.85}, {3.765, 0.85}, {3.785,
0.849}, {3.804, 0.848}, {3.824, 0.847}, {3.844, 0.845}, {3.864,
0.843}, {3.884, 0.84}, {3.903, 0.837}, {3.923, 0.834}, {3.943,
0.831}, {3.963, 0.827}, {3.983, 0.823}, {4.002, 0.818}, {4.022,
0.814}, {4.042, 0.809}, {4.062, 0.804}, {4.081, 0.798}, {4.101,
0.793}, {4.121, 0.788}, {4.141, 0.782}, {4.161, 0.777}, {4.18,
0.771}, {4.2, 0.766}, {4.22, 0.761}, {4.24, 0.755}, {4.26,
0.75}, {4.279, 0.745}, {4.299, 0.741}, {4.319, 0.736}, {4.339,
0.732}, {4.358, 0.728}, {4.378, 0.724}, {4.398, 0.721}, {4.418,
0.718}, {4.438, 0.716}, {4.457, 0.713}, {4.477, 0.711}, {4.497,
0.71}, {4.517, 0.708}, {4.537, 0.707}, {4.556, 0.706}, {4.576,
0.705}, {4.596, 0.704}, {4.616, 0.705}, {4.636, 0.707}, {4.655,
0.708}, {4.675, 0.712}, {4.695, 0.712}, {4.715, 0.715}, {4.735,
0.72}, {4.754, 0.723}, {4.774, 0.727}, {4.794, 0.731}, {4.814,
0.735}, {4.834, 0.739}, {4.854, 0.744}, {4.873, 0.749}, {4.893,
0.753}, {4.913, 0.758}, {4.933, 0.763}, {4.953, 0.768}, {4.972,
0.773}, {4.992, 0.778}, {5.012, 0.783}}}
Graph display of above data:
[PLAIN]http://screensnapr.com/u/9k82rt.png
My attempt in Mathematica:
Code:
FindFit[data,
A*E^(-(R/(2 m))*t)*Cos[Sqrt[k/m - (R/(2 m))^2*t]] + B + c*t, {A, R,
m, k, B, c}, t]
I get this error:
"FindFit::fitd: First argument {{{0.002,0.726},{0.022,0.739},{0.042,0.75},<<5>>,{0.161,0.802},{0.181,0.81},<<244>>}} in FindFit is not a list or a rectangular array. >>"
Can this be done using Mathematica?
Thank you!
Last edited by a moderator: