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[mathcad] "untranslatable"!?
| [mathcad] "untranslatable"!? |
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Author: Andy Spragg
Posted: Thu, 23 Mar 2006 16:37:23 +0000
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Hi folks,
Here's a good one that I've never come across before - I wonder if any of
you, or Adept, can shed any light, because the help file certainly can't.
I'm using Mathcad2k and Win2k.
I just made a very short and simple spreadsheet to draw a large number of
samples of size four from a normal distribution, in order to calculate the
proportion of samples for which the mean satisfies a certain criterion. I
started out by populating an array, each column being a sample, and then
populating a vector with the average of each column. This ran pretty
slowly, and as I experimented with how many samples to draw, I several
times got a "not enough memory" error. Then I nested the sampling and the
averaging functions, which speeded things up a lot.
I settled on repeatedly drawing 10000 samples. The calculation ran. I
pressed F9 a few times and got sensible results - then, what had
previously come out as a vector of 10000 numerical elements, came out as a
string: "untranslatable". Needless to say, there is no mention of the word
"untranslatable" in the help file. I carried on and was unable to
reproduce the "untranslatable" error.
What is also rather odd is that as I carried on, on any given press of F9,
I got either a completed calculation or a "not enough memory" error
message, rather more of the former than the latter. Ultimately, I settled
down into a stable cycle of calculate-calculate-error
-calculate-calculate-error ...
Once I closed and re-opened the spreadsheet I was unable to get anything
other than completed calculations every time.
What was that all about then?
Andy
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