Monthly Bugs, October 2014

[altenbach]

Continued from the September 2014 bugs thread

 The posting rules are as always:

• Each post here should only contain a brief description of a bug, together with a link to the thread where it is being discussed.
• One post/bug!
• One bug/post!
• No discussion of bugs. All discussions of a bug must take place in the original linked thread.

[altenbach]

Somebody from NI needs to look into the "normal random number generator" (e.g. as used inside the chi-squared distribution). They seem less than random and don't average into a smooth histogram with sufficient samples. There are signifiant local spikes that don't everage out.

More details are in this discussion

[Ricardo_Luis]

I would like to inform that the bug in the Continuous Random.vi for generation of random values of a Chi-squared distribution also occur when the Chi-squared Non-Central distribution is used.

[altenbach]

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@Ricardo_Luis wrote:

I would like to inform that the bug in the Continuous Random.vi for generation of random values of a Chi-squared distribution also occur when the Chi-squared Non-Central distribution is used.

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Here's the required link to the discussion of the bug.

Basically, the random seed is picked from a very shallow pool, causing many duplicate "random numbers" if many are generated with reset=true.

[Andrey_Dmitriev]

On editing cells or header in Table Control some cells unexpectable changes their positions

Discussion

[altenbach]

Detailed discussion here. 

[altenbach]

Continued in the November 2014 bug thread.

This thread is now closed.