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mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to
...m trying to select data from a MySQL table, but I get one of the following error messages:
31 Answers
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Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
...x dim: initial centres, e.g. random.sample( X, k )
delta: relative error, iterate until the average distance to centres
is within delta of the previous average distance
maxiter
metric: any of the 20-odd in scipy.spatial.distance
"chebyshev" = max, "cit...
String formatting: % vs. .format vs. string literal
...ere %s" % name
yet, if name happens to be (1, 2, 3), it will throw a TypeError. To guarantee that it always prints, you'd need to do
"hi there %s" % (name,) # supply the single argument as a single-item tuple
which is just ugly. .format doesn't have those issues. Also in the second example yo...
Why do you use typedef when declaring an enum in C++?
...es.
// C++
enum MyEnum {
// ...
};
void f( MyEnum x ); // Correct C++, Error in C
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Python unittest - opposite of assertRaises?
...er9876 is conceptually flawed: if you test for the non-raising of say ValueError, but ValueError is instead raised, your test must exit with a failure condition, not an error one. On the other hand, if in running the same code you would raise a KeyError, that would be an error, not a failure. In pyt...
Using the slash character in Git branch name
...xists
You're getting the equivalent of the "cannot create directory" error.
When you have a branch with slashes in it, it gets stored as a
directory hierarchy under .git/refs/heads.
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How can mixed data types (int, float, char, etc) be stored in an array?
...tuff for char, using my_array[n].cvar
break;
default:
// Report an error, this shouldn't happen
}
It's left up to the programmer to ensure that the type member always corresponds to the last value stored in the union.
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How can I install a local gem?
...: In some versions of ruby or rubygems, it don't work and fire
alerts or error, you can put gems in other place but not get DRY,
other alternative is using launch integrated command gem server and
add the localhost url in gem sources, more information in:
https://guides.rubygems.org/run-your...
Is it possible to make a Tree View with Angular?
...bn6/639
– jbaylina
Nov 28 '13 at 12:05
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How can I enable the Windows Server Task Scheduler History recording?
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answered Jan 20 '15 at 11:05
Mick WoodsMick Woods
4144 bronze badges
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