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pandas DataFrame: replace nan values with average of columns
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# To read data from csv file
Dataset = pd.read_csv('Data.csv')
X = Dataset.iloc[:, :-1].values
# To calculate mean use imputer class
from sklearn.impute import SimpleImputer
imputer = SimpleImputer(missing_values=np.nan, strategy='mean')
imput...
How to get a list of current open windows/process with Java?
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On Windows, run tasklist.exe /fo csv /nh to get the list in CSV format, that's much easier to parse.
– Emmanuel Bourg
Jan 24 '13 at 15:31
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pandas: How do I split text in a column into multiple rows?
I'm working with a large csv file and the next to last column has a string of text that I want to split by a specific delimiter. I was wondering if there is a simple way to do this using pandas or python?
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How can I escape a double quote inside double quotes?
...like this:
$ dbtable=example
$ dbload='load data local infile "'"'gfpoint.csv'"'" into '"table $dbtable FIELDS TERMINATED BY ',' ENCLOSED BY '"'"'"' LINES "'TERMINATED BY "'"'\n'"'" IGNORE 1 LINES'
$ echo $dbload
which produces the following output:
load data local infile "'gfpoint.csv'" into ...
How can I get enum possible values in a MySQL database?
...'s single quote escape might be incompatible), or
$options_array = str_getcsv($options, ',', "'") possibly would work (if you alter the substring to skip the opening and closing parentheses), or
a regular expression
share
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How to use OpenFileDialog to select a folder?
...)|*.png";
//fldrDlg.Filter = "Excel Files (*.xls, *.xlsx)|*.xls;*.xlsx|CSV Files (*.csv)|*.csv"
if (fldrDlg.ShowDialog() == DialogResult.OK)
{
//fldrDlg.SelectedPath -- your result
}
}
share
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Parsing a comma-delimited std::string [duplicate]
...s as white space:
#include <locale>
#include <vector>
struct csv_reader: std::ctype<char> {
csv_reader(): std::ctype<char>(get_table()) {}
static std::ctype_base::mask const* get_table() {
static std::vector<std::ctype_base::mask> rc(table_size, std::c...
How do I dump the data of some SQLite3 tables?
...t you wish to do with the dumped file.
I would use the following to get a CSV file, which I can import into almost everything
.mode csv
-- use '.separator SOME_STRING' for something other than a comma.
.headers on
.out file.csv
select * from MyTable;
If you want to reinsert into a different S...
Copying data from one SQLite database to another
...lmsa.db. This can be done using the command ATTACH '/mnt/fastaccessDS/core/csv/allmsa.db' AS AM;
note that we give the entire path of the database to be attached.
check the database list using sqlite> .databases
you can see the output as
seq name file ...
How can I create a temp file with a specific extension with .NET?
I need to generate a unique temporary file with a .csv extension.
17 Answers
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