大约有 30,000 项符合查询结果（耗时：0.0340秒） [XML]
mysql_config not found when installing mysqldb python interface
...
Can we finally admit that 'pip' is a colossal failure? Errors like this are such a pain, and they seem to happen with the majority of packages. Python badly needs a new solution to package management.
– Eddie Sullivan
Sep 14 '17 at 22:30
...
What is “entropy and information gain”?
...rees (nor is it guaranteed to be globally-optimal one w.r.t classification error). This is in fact an NP-complete problem...
– Amro
May 29 '15 at 15:16
1
...
How do I change read/write mode for a file using Emacs?
... and, if it returns 0, return the output as a string.
Otherwise, signal an error. The error message is the first line of the output."
(let ((output-buffer (generate-new-buffer "*stdout*")))
(unwind-protect
(let ((return-value (apply 'call-process command nil
output-bu...
What is the equivalent of MATLAB's repmat in NumPy
I would like to execute the equivalent of the following MATLAB code using NumPy: repmat([1; 1], [1 1 1]) . How would I accomplish this?
...
How do you find the disk size of a Postgres / PostgreSQL table and its indexes
I'm coming to Postgres from Oracle and looking for a way to find the table and index size in terms of bytes/MB/GB/etc , or even better the size for all tables. In Oracle I had a nasty long query that looked at user_lobs and user_segments to give back an answer.
...
Reorder bars in geom_bar ggplot2
I am trying to make a bar-plot where the plot is ordered from the miRNA with the highest value to the miRNA with the lowest. Why does my code not work?
...
read.csv warning 'EOF within quoted string' prevents complete reading of file
...y simply adding:
quote = ""
to the read.csv() worked for me.
The error, "EOF within quoted string", occurred with:
> iproscan.53A.neg = read.csv("interproscan.53A.neg.n.csv",
+ colClasses=c(pb.id = "character",
+ ...
How do I import a specific version of a package using go get?
...ble builds.
– CAFxX
Jun 14 '18 at 6:05
add a comment
|
...
What do all of Scala's symbolic operators mean?
Scala syntax has a lot of symbols. Since these kinds of names are difficult to find using search engines, a comprehensive list of them would be helpful.
...
Why do python lists have pop() but not push()
Does anyone know why Python's list.append function is not called list.push given that there's already a list.pop that removes and returns the last element (that indexed at -1) and list.append semantic is consistent with that use?
...