st | simple statistics from the command line | Analytics library
kandi X-RAY | st Summary
kandi X-RAY | st Summary
Imagine you have this sample file:. How do you calculate the sum of the numbers?.
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QUESTION
I have a dataframe output from the python script which gives following output
Datetime High Low Time 546 2021-06-15 14:30:00 15891.049805 15868.049805 14:30:00 547 2021-06-15 14:45:00 15883.000000 15869.900391 14:45:00 548 2021-06-15 15:00:00 15881.500000 15866.500000 15:00:00 549 2021-06-15 15:15:00 15877.750000 15854.549805 15:15:00 550 2021-06-15 15:30:00 15869.250000 15869.250000 15:30:00i Want to remove all rows where time is equal to 15:30:00. tried different things but unable to do. Help please.
...ANSWER
Answered 2021-Jun-15 at 15:55The way I did was the following,
First we get the the time we want to remove from the dataset, that is 15:30:00 in this case.
Since the Datetime column is in the datetime format, we cannot compare the time as strings. So we convert the given time in the datetime.time() format.
rm_time = dt.time(15,30)
With this, we can go about using the DataFrame.drop()
df.drop(df[df.Datetime.dt.time == rm_time].index)
QUESTION
I wish to move a large set of files from an AWS S3 bucket in one AWS account (source), having systematic filenames following this pattern:
...ANSWER
Answered 2021-Jun-15 at 15:28You can use sort -V command to consider the proper versioning of files and then invoke copy command on each file one by one or a list of files at a time.
ls | sort -V
If you're on a GNU system, you can also use ls -v. This won't work in MacOS.
QUESTION
I wrote this function in PHP in order to query a DB, if I manually type the staff_ID 04033 in the query as follow it work perfectly...
...ANSWER
Answered 2021-Jun-15 at 13:57Read about how to properly concatenate strings. Try this way:
$query = "SELECT users.staff_ID, users.Name, reports.id_report_show, reports.date_report FROM usersJOIN reports ON reports.staff_ID = users.staff_ID where users.staff_ID = " . $staff_ID;
And do not forget to quote/sanitize your strings, especially when the values are comng from user input.
QUESTION
I'm struggling to write a query that gets value from json column with some specific conditions. I have a table named Table1 with a column of type nvarchar(max) named Data that contains some json values. The json itself looks like this:
...ANSWER
Answered 2021-Jun-15 at 10:38From SQL Server 2016, you can query on JSON column. See the documentation : Work with JSON data
The interesting part for you it's Analyze JSON data with SQL queries.
This done :
QUESTION
MERGE /*+ GATHER_PLAN_STATISTICS*/
INTO ATM_REQUEST ATM
USING ATM_STATUS_VIEW ST
ON ( ATM.accountno = ST.accountno
AND atm.status IS NULL
AND atm.remarks IS NULL)
WHEN MATCHED
THEN
UPDATE SET ATM.STATUS = ST.STATUS, ATM.REMARKS = ST.REMARKS;
ANSWER
Answered 2021-Jun-15 at 09:12As it says, you can't update column(s) referenced in ON clause.
Perhaps you meant to do this:
QUESTION
new to python trying to create a program you can feed a .txt file and have the program perform a specific list of actions code below
...ANSWER
Answered 2021-Apr-16 at 04:30I think this will do what you want.
QUESTION
I get this most common error message in shiny app. I am well aware of this error and have resolved it dozens of time. But this time I am stumped.
...ANSWER
Answered 2021-Apr-23 at 03:30The problem seems to be in this line
QUESTION
I have a long text file few lines start with integer value i..e 2019, etc, and a few start with non-integer i.e. KP, AB, XY. I want to pick the first integer row and concat it with the non-integer rows and save it in a text file. Then, take the second integer row and concat with followed non-integer rows and save in the same text file, and so on. The sample data file is like this.
''''
...ANSWER
Answered 2021-Jun-01 at 09:29i is giving you numbers 0, 1, 2, ... i.e., line number minus 1. Unless you have more than 2019 lines, that if won't evaluate to True..
Instead you can look at the line instead, which is in the line variable. It's a string in each turn, so you can look at the very first character of it and see if it is a digit:
QUESTION
I wrote a template wrapper that should find out if the class owns the function.
...ANSWER
Answered 2021-Jun-14 at 12:32I use a vector there and expected that it will pass
The problem is in std::declval().push_back(), there's no push_back taking nothing for std::vector.
You need to pass argument to push_back, e.g.
QUESTION
my question is a little complicated, I am building a trip-related web application where users can book trips. So I have made a function that increases the number of travelers as the user clicks the + sign. when this function is called it changes the state and another function gets triggered that displays the form to fill in the traveler details. Now this form is rendered according to the number of travelers traveling. how can I set that data in an array of objects?
here's a screenshot guide:
I want the data to be in the state like this:
...ANSWER
Answered 2021-Jun-14 at 10:36You should be using the array.push() method detailed in javascript to add an element to an existing array.
Example
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