TIPS AND TECHNIQUES
ISSUE #26: FLOOR function – login count
In this Tips and Techniques article, the FLOOR function
plays an important part in displaying our data
data. The
FLOOR function rounds each value down to the nearest
multiple of significance.
Before you begin you need to know:
The formula for the X:Axis called “Time every 15
minutes”:
DATEVALUE( CUMULATIVE(
CUMULATIVE ARRAY( FLOOR(
(NOW( ) – 86400
400 ) , 900 ) , REPEAT( 900 , 4 ) , data ) ) ,
“M/d/yy HH:mm” , “GMT-4”
4” )
Result: When evaluated, five date items are returned
starting from 7/28/14 14:45 to 7/28/14 15:45. Today’s
date is 7/29/14.
•
The CUMULATIVE function calculates a
sequence of partial sums.
•
The REPEAT function adds 15 minute time
blocks up to a maximum of four times
times.
The formula for the Series is:
•
900 seconds is the equivalent of 15 minutes
minutes.
LOOKUP( Time every 15 minutes ,
•
86400 seconds is the equivalent of 1 day
day. By
specifying NOW( ) – 86400 the formula returns
the times for the previous day.
GROUP( DATEVALUE( FLOOR( DATE( A:A ,
“M/d/yy “HH:mm” , timezone ) , 900 ) , “M/d/yy
HH:mm” , timezone ) ) ,
•
Use the Insert literal string or number button
to specify the correct time-zone in the X:A
X:Axis.
For example, GMT-4.
COUNTDISTINCT ( DATEVALUE(
DATEVAL
FLOOR( DATE(
A:A , “M/d/yy HH:mm” , timezone ) , 900 ) , “M/d/yy
HH:mm” , timezone ) ) )
•
You must also be familiar with the DATE and
DATEVALUE functions covered in an earlier
article.
Note: Use the REF button to insert
inse the reference to the
X:Axis called Time every 15 minutes.
minutes
Tip: The NOW function updates when the data
source for the Klip refreshes with new data. For
example, the X-Axis values update when the data source
refreshes and there is new data which might not be every
15 minutes.
Result: If you evaluate the GROUP part of this formula
the result is: 7/28/14 14:00, 7/28/14 14:30, and 7/28/14
15:15 .If you evaluate the COUNTDISTINCT part of
this formula the result is 1, 7 and
an 2.
Let’s look at an example from our Support Desk that
counts the number of logins in 15 minutes intervals.
Contact support@klipfolio.com for any additional help or information