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Starting with Piecewise functions in terms of v = x*y[mcode]goldPremiumFunction = Piecewise[{    {400, 0
CityData and CountryData property "Coordinates" gives results in lat-long, but the "Coordinates" property does not have have any built-in projection syntax. GeoGridPosition converts lat-long coordinates into {longitude, latitude} needed for display...
First suggestion is, break the problem up into small steps. Also, once you have located the files, then Import does not care that they are spread out over many sub-directores. This is how I would approch the example provided by dr.nb. I am not a big...
What was the expected value for close on {2014, 5, 2}
Try a file name builder that injects the desired prefix into the file name part, instead of prepending it to the relative file path with StringJoin, like this "Teilchendichte_test\\someData123.txt.dat"[mcode]In[ ]:= datPrefix[prefix_String,...
Your result from Cases can be used by Pick[mcode]In[ ]:= bool = Cases[t, {a_, b_, c_} :> MemberQ[{39, 45}, a + b + c]] Out[ ]= {False, True, True, True, False, True, False, True, True} In[ ]:= Pick[t, bool] Out[ ]= {{2, 18, 19}, {3, 14, 22}, {4, 12,...
The outter List layer of your data was giving FindFit some heartburn. I had to remove that with First. The result of FindFit is replacement rules of the form {R1 -> val1, R2 -> val2, R3 -> val3, ...}. These rules will directly replace the matching...
Leave the focus on the cell or cell group you want to deactivate. Look at the Function Menu bar for Cell > Cell Properties and find the check mark next to the property, Evaluatable. Remove that check mark and the selected cells will no longer have...
Plot can take all three solutions at the same time. In this example Chop helps by filtering out small complex components.[mcode]Manipulate[ s = Solve[A == (1/(1 - Exp[EA]*x)^2 + B*Exp[y]/(1 + x*Exp[y]))*x, x]; Plot[Chop[x /. s], {y, 0, 15},...
Wondering if M10 will have anything in it for these mixed linear models.