Excel is a commercial spreadsheet program created by Microsoft.

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Copy a cell in excel every time it changes (tennis match) to get data automaticly [on hold]

I have a program that is connected to Excel. Which means there are cells that are constatly changing automaticlly (after every point). There are cells showing number of SETS,GAMES,POINTS of each ...
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36 views

who can explain the gradient descent to a not -mathematician [on hold]

I'm trying to get a better understanding of a neural network backpropagation neural network and especially the gradient descent. I'm not a mathematician so I can't read or understand the formula's who ...
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1answer
5 views

exporting from R objects of class “gts” “hts” [on hold]

I am trying to save my forecast of class "gts" "hts" from R into excel but I get an error in R - "cannot coerce class "c("gts", "hts")" to a data.frame". Thank you, Despina
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1answer
17 views

Confidence Interval for Regression Line (simple linear regression)

So I've constructed a confidence interval for my regression line. However, because I have 2500 data points it is a very, very narrow interval (I can barely see it next to the regression line when I ...
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25 views

How to determine if a set of data is Student-t distributed

So I know how to use goodness of fit tests generally. For example if I wanted to check whether my data came from a Poisson distribution I would first estimate the parameter using MLE (so just the ...
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64 views

How can I have the sigma of a normal distribution when I have f(μ)?

How can I find the standard deviation $\sigma$ of a normal distribution satisfying the following criteria? \begin{align} μ &= 12 \\ f(μ) &= 0.5 \end{align} Basically, I have the mean $μ$ and ...
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17 views

Service Level Caluclation with Double Truncated Normal Distribution

The purpose of this exercise is to determine how the number of employees working affects the service level of their job within the organization they are a part of. EX. A call center gets 100 calls a ...
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20 views

Coefficient of correlation from averaged and not averaged data

I want to understand why I get two different results for $r^2$ from the data I post. I use the linest function in Excel. One more noob question about weighted ...
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5 views

Excel Formula for categorizing several values [migrated]

I have a very long list of values. I would like to categorize them into different groups (even the duplicates) examples of the groups would be: " Group A (or 1) = 0 < x < 5 " " Group B (or ...
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14 views

Displaying two sets of data with unequal number of data points in Excel

I have two sets of data to display in a single chart using Excel 2010. First set is the exchange rates over time for GBP against the USD and EUR - this has daily plots so I have about 7300 ...
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0answers
13 views

How to calculate the weighted standard deviation [duplicate]

I have found many equations which claim to be for weighted standard deviation, yet all of these differ very slightly, and I am confused as to which is the correct one. I have some data in Excel, and ...
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44 views

Multiple Correspondence Analysis [closed]

I have a problem I can’t find a way to solve, even though I think it’s possible. I have an Excel file with some data related to patients. The patients have a certain diagnosis [coded as a number (1, ...
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28 views

Ran a logistic regression and fit my data to the predicted model but the predicted model is not overlapping the observed data

EXPERIMENT: Heaviness judgments of a variable weight to a standard weight (2000g). Independent variable/covariate: Weight (9 levels: 1920g, 1940g, 1960g, ... , 2060g, 2080g) Dependent variable: ...
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36 views

Translate R lm poly output to Excel equation?

I have the results of a lm model and its a so-so fit but now I have to dump it into an Excel file to do predictions. Most of it I get but the POLY factors I don't understand and where there is data it ...
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1answer
35 views

Calculating relative growth rate in R or excel [closed]

I'm currently trying to work out the relative growth rate of individuals using the equation RGR = (lnW2-lnW1)/(t2-t1) so log of weight at time 2 minus log weight at time 1 divided by time 2-time 1. ...
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39 views

What program to use for data presentation? [closed]

I need to plot few graphs for my dissertation, I would use GraphPad Prism however my 30 trial has expired and I cannot afford to buy it. R- sounds good but it is far too complicated and I, ...
2
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1answer
139 views

Statistical analysis of relational database: is it possible and how?

I have been struggling with flat file databases and corresponding statistical packages for almost 20 years now (from Excel to SPSS, then Stata, and currently R). However, I have always had to convert ...
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1answer
47 views

What does subscript i mean in statistics in this context (table with values included)?

This has been driving me nuts for hours. I cannot find information anywhere on the internet on what the formulas in the upper-right two cells mean. The i subscript is throwing me off.
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10 views

Calculating trends and averages on skewed data?

I'm running analysis on an Audit that has been distributed over the course of a year. There are currently about 40 or so different audits. Each audit contains 90 questions. When the audit was first ...
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0answers
15 views

Multiple regression: forcing y-intercept=0 improves R^2, is this correct/possible? [duplicate]

I have been running multiple regressions in Excel successfully (using the Data Analysis Toolpak) but when I run the same regressions and force the y-intercept through 0, the R^2 values are very ...
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0answers
21 views

analysing 7 point likert scale data

I do not have any background in statistics. however, I am conducting research for my thesis. I have gathered 32 data (initially) and I need to present primary data to my professor, I am using Excel to ...
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38 views

Paper on Excel problem

This might be a rather esoteric question, but .... I once encountered a paper / technical report that showed that Excel (up to some version) was using a numerically non-stable method to compute ...
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29 views

How can I calculate and display deviation from a linear trendline?

I am working in excel, and I have plotted some data in a scatter plot. I added a linear trendline, and I want to calculate the deviation of each data point from the trendline. I am plotting allometric ...
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0answers
20 views

Smaller p-values on a selective multiple regression analysis [duplicate]

When I run a multiple regression analysis in Excel on 20 independent variables and 1 dependent variable (in two goes), I obtain in the summary a set of p-values. When I select the (six) ones that are ...
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2answers
46 views

How to calculate Standard error of Normal Distribution with given Confidence Intervale

I have one basic question in preforming the forecast of fertility rate. I assumed if the fertility rate (is normally distributed) is equal to 3.0, there is an 80 per cent chance that fertility would ...
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50 views

What kind of distribution is my QQ-plot and histogram?

I am pretty in new in distribution issues and I am trying to figure out what kind of distribution I have. I have a historical data with more than 300 observations. I will calculate Value-at-Risk ...
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1answer
78 views

How can I transfer an ARMAX model in Excel in order to forecast future values?

I am currently trying to set up an Excel based tool, that alows to predict future values based on an ARMAX model, previously set up in SPSS. The Excel tool contains the coeffienients, calculated by ...
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44 views

Implementation of Naive Bayes Classifier in Excel?

I need help for implementation of Naive Bayes algorithm purely in Microsoft excel. I have 5 independent variable. I have already implemented in R but I would like to know is there any way to implement ...
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1answer
84 views

Statistical Analysis: Fisher exact test or chi-square test?

I am trying to do statistical analysis for a user survey. The total number of survey to be analysed is 59. The variables in the survey can be defined as a categorical variable. Some of the ...
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14 views

Ignore data where the minutes modulo five are not equal to zero

I've some data that I'll analyse. Every five minutes there was taken the power (P) of solar panels over five years. I've calculate the kilo watt hour of that moment by this formule: $$P[Wh] = P[W] ⋅ ...
2
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1answer
41 views

Calculating actual quantile from poorly defined lognormal distributions

I have a dataset in which the uncertainties in various parameters are modelled with a lognormal distribution. After the experiment I get a single number result. As part of a lookback to understand how ...
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1answer
97 views

R forecast ets initial level and trend

I am trying to understand how the ets function of R in the forecast package computes initial level $l_0$, and initial trend $b_0$. I was under the impression that they are set to the intercept and ...
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317 views

How to inverse loss function L(z) to normal standard distribution (z) [closed]

z is the standard normal distribution F(z) is the probability normal distribution L(z) is the standard loss function I can find these values using below code ...
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0answers
35 views

Predictive model building across seasons (time, year)

I'm using Excel - and yes that's very basic but have to start there. My hypothesis is that you can predict amount of people getting the flu by looking at social data. I have two datasets: - Social ...
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1answer
62 views

What test should I use to explain a natural phenomenon in three variables?

I have hundreds of sample points where I have data of three variables ranging from 0.0 to 1.0. I would like to use some statistical test to find a function that could predict a phenomenon. I also have ...
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3answers
292 views

Alternative visualizations to 3D bar chart

I have a dataset that consists of a numerical variable (height, y-axis). Each data point is replicated for an individual (1,2,3) in each treatment (A,B,C,D). Here is a terrible figure that I am ...
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17 views

Multiple regressions with same dependent variables

I was recently working on some problems dealing with regression, anova, and the like and in these problems there were 10 regression tables. 5 of which each had different dependent variables. 5 which ...
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1answer
65 views

Variables Importance to Predicted Value

I'm working on a model to understand the predictors (variables) importance, and whether going forward I should include them in the model which should scale over > 1M rows. Here is a sample of my ...
2
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1answer
29 views

Standardized coefficients to zero mean

I was reading in the literature that in order to compare linear regression results with independent variables & categorical (variables), it is recommended to standardize the coefficients to a zero ...
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18 views

Validating poissonic (mutation) data using 95% confidence interval

I've been tasked with the following: We want to verify the quality of DNA sequences from a lab without redoing the assembly ourselves. These "query" sequences (say influenza) from the other lab are ...
3
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2answers
114 views

What kind of chart can visualize individual points of data on a single axis?

My core problem is trying to visualize the workload of a customer support team throughout the week. Specifically, I want to see what the load looks like hour by hour on each day for each agent ...
0
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1answer
27 views

Remove the effect of a variable from output

How do I remove the effect of a variable from the output? Say we have a stock market index, I want to know how the index would look if you take away one of the variables. I will have run a regression ...
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0answers
9 views

How to apply weights to data to adjust percentages that are based on different population sizes

I have a problem where I'm dealing with population data. I have data on approval for a product. The problem is that we have a lot more data in some zones than others. How can I apply weights to make ...
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1answer
61 views

What would be a clear way of showing both the homicide count and rate in one single visualization?

I'm learning to use Google Charts API in order to play around with data from UNODOC statistics. I found this excel file providing information about homicide count and rates from countries in the ...
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0answers
184 views

Neural network prediction using back-propagation

I found pdf tutorial to create an excel based neural network, using the solved add-in. Unfortunately, the formula giving the predicted output is not provided. Is there a recognized way of using the ...
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2answers
60 views

Excel dates and R? [closed]

First of all I already looked for an answer to my question but all the methods and scripts in other answers are not quite working with mine. Im beginner in R so have me patience please! :( I Have a ...
3
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1answer
92 views

Excel Regression: What to do if one of my P values aren't acceptable but can't be removed?

I am doing regression in excel and I have dummy variables for Quarter (seasonal values) P values for Q2 and Q3 are significant but my Q1 P value seems too high. I can't exactly pull out Q1 ... What ...
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1answer
36 views

Which number should I use for In-between group analysis by using Fisher's exact test?

I have to find out if the baseline demographics have statistically significant difference between two groups. The project is about two groups of students, one intervention group and one control group. ...
5
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2answers
411 views

How can $R^2$ have two different values for the same regression (without an intercept) [duplicate]

My question is multifaceted. So I'll start by asking my question and then explain what has caused me to ask this question. How can I calculate the coefficient of determination for a linear ...
0
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1answer
48 views

Meaning of Intercept and what the intercept should be with no measurement error?

I'm going into University this year, Engineering to be more specific and I was given an assignment over the summer about regression. (Something I have no knowledge about) Basically, in my questions I ...