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Questions tagged [trend]

A trend is the general drift or tendency in a set of data.

Trend in math is a mathematical tool used to show a pattern in the occurrence of data. An example would be; if a set of numbers in any given data increases and the values of the other set of numbers increases, then they are said to have a positive trend and vice versa. If the data shows no relation then the set shows no trend.

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Compare trends Among two Time Series data-set in R OR PostgreSQL

I have two time series data-sets and I would like to compare them based on their pattern. P29: Data-set 1: temperature Data_Time 1 -1.14 2007-09-29 00:01:57 2 -1.12 2007-09-29 00:03:57 3 -1.33 2007-09-29 00:05:57 4 -1.44 2007-09-29…
A Kntu
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Excel OFFSET function error when using TREND in reference

Consider an Excel sheet with the following values: A B -------- 1| 1 5 2| 2 8 3| 3 11 Entering the array formula =TREND(B1:B3,A1:A3,A1:A3) in cells C1:C3 returns {5;8;11}, as expected. Entering =OFFSET(C1:C3,1,0) returns {8;11;0}, also…
dnlbrky
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Twitter style trends with php/mysql

I am coding a social network and I need a way to list the most used trends, All statuses are stored in a content field, so what it is exactly that I need to do is match hashtag mentions such as: #trend1 #trend2 #anothertrend And sort by them, Is…
André Figueira
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Getting trends from raw data

Let we have many data which looks like chain of digits time 23 67 34 23 54 | 12:34 23 54 | 12:42 78 96 23 | 12:46 56 93 23 54 | 12:48 I need to found numbers chain trends (grow, fall, stable) . In my example it might be 23 54 or…
Neir0
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Python Numpy polyfit gets the same as Excel Linear for slope

By the use of below, I get the slope of a list of number. It's referenced from the answer to this question, Finding increasing trend in Pandas. import numpy as np import pandas as pd def trendline(data, order=1): coeffs =…
Mark K
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Tableau desktop average line granularity error

[14 day sales trend,split by student type][1] I was trying to plot an average line for the sales over the past 14 days. I have used average line in analytics pane for the entire table. And I have made bar chart to stacked bar chart by splitting the…
Rajkumar Shenigaram
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Extracting upward/downwards trends in an array

I have an array consisting of temperatures from different days. My goal is to extract the elements where the temperature is either increasing or decreasing for n number of days. Lets say we have an array consisting of following…
Josfa
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using R to collate and visualize monthly data held in different excel sheets

How do i collate monthly data held in different excel sheets in R? i want to import only a few sheets of a workbook. and then use R to aggregate and visualize monthly trend?
Nav
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How to find a trend/forecast result 14 days from today

I have looked into the Forcast & Trend formula but I cannot figure it out for the life of me. I want to work out the trend 14 days from now. I have a set of data: A1 - A30 with dates B1 - B30 with daily ticket count for the business. I would like…
mccarthy995
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Get trendline slope of multiple time series by group

I've got a data set containing multiple time series for different groups in long format. I need to get the slope of a trendline for each one of the groups, so i can tell if the series is increasing or decreasing overtime. My df looks like…
user3639100
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How to calculate the lifetime of the use of a database?

Can you please help me with this problem? You have the following information: Name Date Size_Total Size_Free Size_Used X 20/05/2019 50MB 40MB 10MB X 21/05/2019 50MB 35MB 15MB X 22/05/2019 …
FixedShot
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How to compute Spearman's Rho Trend test in r

I am trying to compute Spearman's Rho Trend test in r by doing this: test=cor.test(timeseries,1:n,method="spearman") D=test$p.value Z=D*sqrt((n-2)/(1-D^2)) pt(Z,n-2) First, I calculate the Correlation coefficient and then I compute the test itself…
Erincon
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Are the trends leaning towards developing in the cloud or local?

Would you say that the trend of developers is to leverage cloud development environments rather than local desktop environments? Learning about Cloud 9 and other similar cloud dev platforms, it seems that there are some major benefits over local…
protoEvangelion
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Create a Word Tag in MS Access

I'm trying to generate a Word Tag in Ms access using VBA or Query to view common trends in a string (MEMO Field). Using VBA is it possible to search through a string to look for repeated words? Kindest regards Max
Max Thorley
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predict future values based on increasing trend in R

This is the numeric vector which follows an increasing trend (below). What if I want to predict the next 100 values based on this increasing trend? I want the predicted values numerically and not on a graph. x[,2][1:500] [1] 409341 409341 409341…
Akshay Kher
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