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How can I remove all objects but one from the workspace in R?
...option is to open workspace in RStudio and then change list to grid at the top right of the environment(image below). Then tick the objects you want to clear and finally click on clear.
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An example of how to use getopts in bash
...$0 [-s <45|90>] [-p <string>]" 1>&2; exit 1; }
while getopts ":s:p:" o; do
case "${o}" in
s)
s=${OPTARG}
((s == 45 || s == 90)) || usage
;;
p)
p=${OPTARG}
;;
*)
usage
;...
What to put in a python module docstring? [closed]
... So, is it customary to include author, copyright, etc. in comments at the top of a module?
– user297250
Apr 1 '10 at 0:16
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Extension methods must be defined in a non-generic static class
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This was the cause for me. The top answers don't explain why is it caused.
– Serberker
Sep 15 at 6:48
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How to change font size in Eclipse for Java text editors?
...heck that you do not have per-project preferences. These will override the top-level preferences.
Eclipse v4.2 (Juno) note
Per comment below, this has moved to the Eclipse Preferences menu (no longer named the Window menu).
Eclipse v4.3 (Kepler) note
The Window menu is live again, that is, menu Wi...
CSS center display inline block?
...i found what worked best for me was to add a % to the size
.wrap {
margin-top:5%;
margin-bottom:5%;
height:100%;
display:block;}
The definitive guide to form-based website authentication [closed]
...common problems. "Form based authentication for websites" should be a fine topic for such an experiment.
12 Answers
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Auto margins don't center image in page
... with position:relative; will prevent margin:0 auto; from working, even if top, right, bottom, and left aren't set.
Setting the element to position:static; (the default) may fix it under these circumstances. Generally, block level elements with a specified width will respect margin:0 auto; using ei...
Converting JavaScript object with numeric keys into array
... array throughout a ton of code, which was fine until i needed to build on top of it...
– amanda fouts
Dec 13 '15 at 6:27
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How to get the current loop index when using Iterator?
...to be careful to only call Iterator#next once per loop - just do it at the top).
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