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Adding a column to a data.frame
I have the data.frame below. I want to add a column that classifies my data according to column 1 ( h_no ) in that way that the first series of h_no 1,2,3,4 is class 1, the second series of h_no (1 to 7) is class 2 etc. such as indicated in the last column.
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How to assign the output of a command to a Makefile variable
...efile output text
– peterchaula
Sep 28 '17 at 15:51
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“Cloning” row or column vectors
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PeterPeter
108k4646 gold badges166166 silver badges203203 bronze badges
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data.frame rows to a list
... 889.1849 973.5294 943.2288 1041.7206 1250.6150 20
setDF 459.0577 466.3432 511.2656 482.1943 500.6958 750.6635 20
attrDT 399.1999 409.6316 461.6454 422.5436 490.5620 717.6355 20
datList 192.1175 201.9896 241.4726 208.4535 246.4299 411.2097 20
While the differences ...
How do I join two lists in Java?
...e.
– manuelvigarcia
Sep 26 '16 at 6:46
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What's the use of Jade or Handlebars when writing AngularJs apps
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I honestly don't understand why people care about the difference between this:
<html ng-app...
Is 1.0 a valid output from std::generate_canonical?
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edited Mar 28 '17 at 19:03
answered Sep 4 '14 at 15:34
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Validate decimal numbers in JavaScript - IsNumeric()
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this fails with other locales where we use decimal commas, but add `n = n.replace(/,/,".");' before the return to fix it.
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How to prevent going back to the previous activity?
... it, thanks!
– ecem
Dec 26 '11 at 0:46
also thanks about the finish() method, I did not know about it.
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RegEx for Javascript to allow only alphanumeric
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/^[a-z0-9]+$/i
^ Start of string
[a-z0-9] a or b or c or ... z or 0 or 1 or ... 9
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