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Questions tagged [hat]

Hat is a source-level tracer for the Haskell programming language. Hat gives access to detailed, otherwise invisible information about a computation.

Hat is a source-level tracer for the Haskell programming language. Hat gives access to detailed, otherwise invisible information about a computation.

The Hat website can be found at http://projects.haskell.org/hat/

6 questions
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ExitFailure 1 on `Hat` again

In this question, we installed the dependencies for Hat. Now when I try to do cabal install Hat I get at the end: [ 6 of 11] Compiling Environment ( trans/Environment.hs, dist/build/hat-trans/hat-trans-tmp/Environment.o…
PyRulez
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How to install `Hat`

I am trying to get the Hat debugger. When I try: cabal install hat OR cabal install hat -v At the end I get: configure: error: in `/tmp/terminfo-0.4.0.0-17745/terminfo-0.4.0.0': configure: error: curses headers could not be found, so this package…
PyRulez
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No rule to make target when building drivers for SIM7600A

Attempting to install the drivers for a Waveshare SIM 7600A-h HAT to provide WWAN access to a Raspberry Pi 4. Using manufacturer driver software provided from https://www.waveshare.com/wiki/SIM7600A-H_4G_HAT. Followed instructions from included PDF…
SimpleSimonPiMan
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1 answer

Hat Matrix of Beta Regression

I am trying to calculate beta regression by using Hat matrix, manually. I am using idea of https://stats.stackexchange.com/questions/8126/how-to-calculate-the-hat-matrix-for-logistic-regression-in-r?noredirect=1&lq=1 answer. But its not working for…
J AK
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1 answer

R - Markdown "! Missing { inserted. " mistake

When I try to export in pdf a R Markdown file I get the following mistake: ! Missing { inserted. The concerned line is this one: $$ AIC = ln \hat{\sigma}^{2}_\hat{u_t} + \frac{2n_k}{T} $$ I do not get what is wrong with the way…
Dorianeve
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1 answer

GUI repeating input data and refresh input data

I have a Raspberry Pi and a sense hat. I am trying to create a loop that shows the output from the sense hat (temperature and orientation) to a GUI and automatically update every second. So a screen will open with the information that is being fed…
Alaa Mufti
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