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How to convert a data frame column to numeric type?
How do you convert a data frame column to a numeric type?
18 Answers
18
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Is it possible for a computer to “learn” a regular expression by user-provided examples?
...on the specification, rather than trying to infer the regex from a limited set of sample product codes (regardless of whether a person or a program is trying to infer the regex).
– Jan Goyvaerts
Feb 12 '16 at 2:57
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GIT clone repo across local file system in windows
...to GIT. I have been just taking my first steps over the last few days. I setup a repo on my laptop, pulled down the Trunk from an SVN project (had some issues with branches, not got them working), but all seems ok there.
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Does C have a “foreach” loop construct?
...dd the initialization of the nullTerm pointer to the beginning of the data set. The OP might be confused about the incomplete for loop.
– cschol
Dec 30 '08 at 17:54
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How to dump a table to console?
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found this:
-- Print contents of `tbl`, with indentation.
-- `indent` sets the initial level of indentation.
function tprint (tbl, indent)
if not indent then indent = 0 end
for k, v in pairs(tbl) do
formatting = string.rep(" ", indent) .. k .. ": "
if type(v) == "table" then
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Expert R users, what's in your .Rprofile? [closed]
...)
rm(r)
## put something this is your .Rprofile to customize the defaults
setHook(packageEvent("grDevices", "onLoad"),
function(...) grDevices::X11.options(width=8, height=8,
xpos=0, pointsize=10,
#t...
javascript: Clear all timeouts?
...ecutive integers.
So you may clear all timeouts like so:
var id = window.setTimeout(function() {}, 0);
while (id--) {
window.clearTimeout(id); // will do nothing if no timeout with id is present
}
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python exception message capturing
This doesn't seem to work, I get syntax error, what is the proper way of doing this for logging all kind of exceptions to a file
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How do I get the value of text input field using JavaScript?
... a global Javascript variable
var inputTextValue;
function keyup(e) {
//setting your input text to the global Javascript Variable for every key press
inputTextValue = e.target.value;
//listens for you to press the ENTER key, at which point your web address will change to the one you have inp...
Keep only first n characters in a string?
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
...