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Overlaying histograms with ggplot2 in R

I am new to R and am trying to plot 3 histograms onto the same graph. Everything worked fine, but my problem is that you don't see where 2 histograms overlap - they look rather cut off. ...
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How to remove debugging from an Express app?

... | edited Apr 1 '14 at 19:31 Adaptabi 3,50211 gold badge2121 silver badges2626 bronze badges answered Ju...
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sqlalchemy unique across multiple columns

... 310 Extract from the documentation of the Column: unique – When True, indicates that this co...
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How to replace a character with a newline in Emacs?

... 433 M-x replace-string RET ; RET C-q C-j. C-q for quoted-insert, C-j is a newline. Cheers! ...
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Check if a Postgres JSON array contains a string

...ch rabbit likes two foods and 10% of them like carrots: d=# -- Postgres 9.3 solution d=# explain analyze select info->>'name' from rabbits where exists ( d(# select 1 from json_array_elements(info->'food') as food d(# where food::text = '"carrots"' d(# ); Execution time: 3084.927 ms d=...
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Regex to match a digit two or four times

... ruakhruakh 149k2121 gold badges234234 silver badges275275 bronze badges 1 ...
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JavaScript arrays braces vs brackets

... 137 The first and third are equivalent and create a new array. The second creates a new empty objec...
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.NET JIT potential error?

...ase outside Visual Studio. I'm using Visual Studio 2008 and targeting .NET 3.5. I've also tried .NET 3.5 SP1. 3 Answers ...
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Adding code to a javascript function programmatically

... community wiki 5 revs, 5 users 63%user1106925 10 ...
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Convert UNIX epoch to Date object

...s integers representing the number of seconds since the UNIX epoch (e.g. 1352068320 ), but Date objects seem more appropriate for plotting. How can I do the conversion? ...