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How to list all methods for an object in Ruby?
...default_timezone", "encode_quoted_value",
"reloadable?", "update", "reset_sequence_name", "default_timezone=",
"validate_find_options", "find_on_conditions_without_deprecation",
"validates_size_of", "execute_simple_calculation", "attr_protected",
"reflections", "table_name_prefix...
How to convert a column number (e.g. 127) into an Excel column (e.g. AA)
How do you convert a numerical number to an Excel column name in C# without using automation getting the value directly from Excel.
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dd: How to calculate optimal blocksize? [closed]
...sh:
#!/bin/bash
# Since we're dealing with dd, abort if any errors occur
set -e
TEST_FILE=${1:-dd_obs_testfile}
TEST_FILE_EXISTS=0
if [ -e "$TEST_FILE" ]; then TEST_FILE_EXISTS=1; fi
TEST_FILE_SIZE=134217728
if [ $EUID -ne 0 ]; then
echo "NOTE: Kernel cache will not be cleared between tests wi...
How to drop a list of rows from Pandas dataframe?
...positional indexes to drop ([1, 2, 4] in the question).
indexes_to_keep = set(range(df.shape[0])) - set(indexes_to_drop)
df_sliced = df.take(list(indexes_to_keep))
In my case this took 20.5s, while the simple df.drop took 5min 27s and consumed a lot of memory. The resulting DataFrame is the same....
How can I pad an integer with zeros on the left?
How do you left pad an int with zeros when converting to a String in java?
16 Answers
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How to print the ld(linker) search path
...k (not sure) will override the system library paths. You could also try to set the LIBRARY_PATH env variable before compiling: $ LIBRARY_PATH=/somedir/ gcc ...
– faken
Sep 8 '14 at 14:12
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How can I delete a file from a Git repository?
I have added a file named "file1.txt" to a Git repository. After that, I committed it, added a couple of directories called dir1 and dir2 , and committed them to the Git repository.
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TypeScript type signatures for functions with variable argument counts
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What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
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“VT-x is not available” when i start my Virtual machine [closed]
...
You might try reducing your base memory under settings to around 3175MB and reduce your cores to 1. That should work given that your BIOS is set for virtualization. Use the f12 key, security, virtualization to make sure that it is enabled. If it doesn't say VT-x that is ...