### Categories

### RSS Feed

### Search NewtonExcelBach

### Archives

### Top Posts

- Using LINEST for non-linear curve fitting
- Using Goal Seek on Multiple Cells
- Cubic Splines
- Commenting a block of code in VBA
- Arrays vs Collections vs Dictionary Objects (and Dictionary help)
- Drawing in Excel 7 - Creating drawings from coordinates
- Retrieving unique values from a range or array ...
- Downloads by category
- Downloads
- Fitting high order polynomials

### Recent Comments

dougaj4 on RCInteract and RC Design Funct… Steven Gikas on RCInteract and RC Design Funct… Steven Gikas on RCInteract and RC Design Funct… dougaj4 on RCInteract and RC Design Funct… Steven Gikas on RCInteract and RC Design Funct… #Excel Super Links #… on Plotting Freeze-Thaw Data… dougaj4 on RCInteract and RC Design Funct… Steven Gikas on RCInteract and RC Design Funct… Counting non-pecked… on Binary functions, combining te… Adiba on Is Hinchliffe’s Rule Tru… Frankmaybe on Using LINEST for non-linear cu… dougaj4 on Using LINEST for non-linear cu… Frankmaybe on Using LINEST for non-linear cu… Excel Roundup 201706… on Working with milliseconds in… 3DFrame update | New… on 3D Frames, axes and stiffness…

# Category Archives: Charts

## Using Matplotlib from Excel with xlwings – update

In February 2016 I posted a spreadsheet with examples of linking to the Python Matplotlib library with xlwings. Since then updates to xlwings required some changes to the python code, specifically plot.show has been replaced with pictures.add. The spreadsheet has … Continue reading

Posted in Charts, Charts, Excel, Link to Python, Newton, NumPy and SciPy, VBA
Tagged Excel, MatPlotlib, Python, update, VBA, xlMatPlot, xlwings, xlwScipy
Leave a comment

## More on trend line equations on line charts

In the previous post we saw that if a trend line equation is added to a line chart it will return the wrong coefficients if the x values are not a continuous sequence of integers, starting at 1 (click on … Continue reading

Posted in Charts, Excel, Maths, Newton
Tagged chart trend line, Charts, Excel, line chart, XY chart
1 Comment

## Displaying trend line equations on line charts

This post is prompted by a recent comment at Using LINEST for non-linear curve fitting which found that the trend line formula displayed on a chart was totally different from that found using the Linest function. The problem was caused by using a … Continue reading

Posted in Charts, Charts, Excel, Maths
Tagged Chart, Excel, Show trend line equation, Trend line
Leave a comment

## A mystery curve links to Jupyter

Reviewing some of my less visited links recently, I was intrigued by a post at The Math Less Travelled: The previous post at the site provides more details of the source of the curve, and some links to an interactive … Continue reading

Posted in Charts, Charts, Excel, Maths, Newton
Tagged curve generator, Excel, Jupyter, Maths, parametric curve, Python, Scatter chart
2 Comments

## Managing Data Using Excel …

… is a new book by Mark Gardener, published by Pelagic Publishing.* It is subtitled “Organising, summarising and visualising scientific data”. The publishers say of the book: Microsoft Excel is a powerful tool that can transform the way you use … Continue reading

Posted in Charts, Excel, Newton
Tagged Charts, pivot tables, Scientific data analysis
Leave a comment

## Pi day of the Century

In North America, where today is 3-14-15, it is Pi day, and since there are not 31 days in April, the rest of us have to go along with that as well. Not only is it Pi day, it’s the … Continue reading

## Charts and Charting

I don’t do a lot on Excel charts because there are already a number of excellent blogs and sites that specialise in that area; notably: Peltier Tech Blog but after compiling my “Downloads by Category” page I found that I … Continue reading