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Filter dataframe rows if value in column is in a set list of values [duplicate]
...e,
str.contains('pandas', case=False)
would match PANDAS, PanDAs, paNdAs123, and so on.
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Is bool a native C type?
...re all of its elements to be addressable (e.g. _Bool* ptr = &boolArray[123]).
– Dai
Apr 5 at 0:05
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How to print from GitHub
..., the tool is useless if it is not reliable.
– Ragnar123
Oct 28 '14 at 13:24
21
note that this op...
Dynamically select data frame columns using $ and a character value
...is a reproducible example below:
# set seed for reproducibility
set.seed(123)
df <- data.frame( col1 = sample(5,10,repl=T) , col2 = sample(5,10,repl=T) , col3 = sample(5,10,repl=T) )
# We want to sort by 'col3' then by 'col1'
sort_list <- c("col3","col1")
# Use 'do.call' to call order. S...
Upload files with HTTPWebrequest (multipart/form-data)
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@php-jquery-programmer, it's generic example code so the parameters have generic names. Think of "param1" as "your_well_named_param_here" and please reconsider your -1.
– Joshcodes
Mar 5 ...
How to have the cp command create any necessary folders for copying a file to a destination [duplica
... edited Nov 14 '12 at 19:05
Oz123
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answered Nov 14 '12 at 18:34
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WSGI vs uWSGi with Nginx [closed]
...sees the two terms and has no prior info on how things work outside of mod_PHP world (for e.g. nothing against php or folks)
The site does well to explain in practical terms what is needed and what is the difference as well as a good deployment example for nginx.
For the convenience, the explanatio...
Why are hexadecimal numbers prefixed with 0x?
...h is nicely divisible by 3 = log2(8).
The BCPL language used the syntax 8 1234 for octal numbers. When Ken Thompson created B from BCPL, he used the 0 prefix instead. This is great because
an integer constant now always consists of a single token,
the parser can still tell right away it's got a c...
How to “grep” for a filename instead of the contents of a file?
... giving you not only file names. but if a path has a directory ('/xyz_test_123/other.txt') would also comes to the result set.
cheers
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How does one output bold text in Bash?
...e sequences for example here: ascii-table.com/ansi-escape-sequences-vt-100.php
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