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# Plot 3D

E F Graph 3D Mode Format Axes: x -min: x -max: y -min: y -max: z -min: z -max: x -tick: x -scalefactor: y -tick: y -scalefactor: z -tick: z -scalefactor: lower z -clip: upper z -clip Plot3D treats the variables x and y as local, effectively using Block. Plot3D has attribute HoldAll and evaluates f only after assigning specific numerical values to x and y. In some cases it may be more efficient to use Evaluate to evaluate f symbolically before specific numerical values are assigned to x and y 3D Plot in Excel is used to plot the graph for those data sets, which may not give much visibility, comparison feasibility with other data sets, and plotting the area when we have large sets of data points. 3D Plot in Excel is the creative way of change a simple 2D graph into 3D This is useful when plotting 2D data on a 3D Axes. The data must be passed as xs, ys. Setting zdir to 'y' then plots the data to the x-z-plane. See also Plot 2D data on 3D plot. s float or array-like, default: 20. The marker size in points**2. Either an array of the same length as xs and ys or a single value to make all markers the same size

plot3 (X,Y,Z) plots coordinates in 3-D space. To plot a set of coordinates connected by line segments, specify X, Y, and Z as vectors of the same length. To plot multiple sets of coordinates on the same set of axes, specify at least one of X, Y, or Z as a matrix and the others as vectors. example. plot3 (X,Y,Z,LineSpec) creates the plot using. 3d plot - Wolfram|Alpha. Assuming 3d plot refers to a computation | Use as. a computer software topic. instead | Use d as. referring to geometry

An interactive 3D graphing calculator in your browser. Draw, animate, and share surfaces, curves, points, lines, and vectors 3D Surface Plotter. An online tool to create 3D plots of surfaces. This demo allows you to enter a mathematical expression in terms of x and y. When you hit the calculate button, the demo will calculate the value of the expression over the x and y ranges provided and then plot the result as a surface. The graph can be zoomed in by scrolling. In this article, we will deal with the 3d plots using matplotlib. Example: Python3. import numpy as np. import matplotlib.pyplot as plt. fig = plt.figure () ax = plt.axes (projection ='3d') Output: With the above syntax three -dimensional axes are enabled and data can be plotted in 3 dimensions. 3 dimension graph gives a dynamic approach and.

### CalcPlot3D - LibreText

1. Passing x and y data to 3D Surface Plot¶. If you do not specify x and y coordinates, integer indices are used for the x and y axis. You can also pass x and y values to go.Surface
2. Now, we have a basic idea about how to create a 3D plot on an empty canvas. Let us move to some 3D plotting examples. Examples of 3D plotting: Example 1: In the below example, we will be taking a simple curve in our 3D plot. Along with that, we will be plotting a range of points that have X-coordinate, Y-coordinate as well as Z-coordinate
3. Data visualization is one such area where a large number of libraries have been developed in Python. Among these, Matplotlib is the most popular choice for data visualization. While initially developed for plotting 2-D charts like histograms, bar charts, scatter plots, line plots, etc., Matplotlib has extended its capabilities to offer 3D plotting modules as well
4. 3D Scatter Plots in R How to make interactive 3D scatter plots in R. Write, deploy, & scale Dash apps and R data visualizations on a Kubernetes Dash Enterprise cluster

### Plot3D—Wolfram Language Documentatio

• Three-dimensional Points and Lines ¶. The most basic three-dimensional plot is a line or collection of scatter plot created from sets of (x, y, z) triples. In analogy with the more common two-dimensional plots discussed earlier, these can be created using the ax.plot3D and ax.scatter3D functions
• 3D plots is also known as surface plots in excel which is used to represent three dimensional data, in order to create a three dimensional plot in a excel we need to have a three dimensional range of data which means we have three-axis x, y and z, 3D plots or surface plots can be used from the insert tab in excel
• The 3D plotting in Matplotlib can be done by enabling the utility toolkit. The utility toolkit can be enabled by importing the mplot3d library, which comes with your standard Matplotlib installation via pip. After importing this sub-module, 3D plots can be created by passing the keyword projection=3d to any of the regular axes creation.
• plot3D: Plotting Multi-Dimensional Data. Functions for viewing 2-D and 3-D data, including perspective plots, slice plots, surface plots, scatter plots, etc. Includes data sets from oceanography. Version
• Create a 3-D quiver plot of the subset you selected. The vectors X, Y, and Z represent the location of the base of each arrow, and U, V, and W represent the directional components of each arrow. By default, the quiver3 function shortens the arrows so they do not overlap. Call axis equal to use equal data unit lengths along each axis. This makes the arrows point in the correct direction
• Types of 3D Plots in MATLAB. Below we have discussed the types of 3D plots in MATLAB used in computing. 1. PLOT3 (Line Plots) Plot3 helps in creating 3D lines or Point Plots. Plot3 (x,y,z): If x,y,z are vectors of the same length, then this function will create a set of coordinates connected by line segments. If we specify at least one of x, y.

Select Plot > 3D : 3D ColorMap Surface to create a 3D Colormap Surface plot (Graph1 by default). Right click the layer icon on the left-top of the graph to open the Layer Contents dialog. In this dialog, click on the button and select 3D Scatter/Trajectory/Vector from the fly-out menu. Select column C from the left panel and click on the Add. The plot option orientation=[0,70] determines how the 3D plot is rotated. I tried to pick angles which display the cone nicely. Then I made the viewpoint to circle around the surface so we produce a nice animation for the webpage version Description. plot3 (X,Y,Z) plots coordinates in 3-D space. To plot a set of coordinates connected by line segments, specify X, Y, and Z as vectors of the same length. To plot multiple sets of coordinates on the same set of axes, specify at least one of X, Y, or Z as a matrix and the others as vectors

### 3D Plot in Excel How to Plot 3D Graphs in Excel

There are many functions in R programming for creating 3D plots. In this section, we will discuss on the persp() function which can be used to create 3D surfaces in perspective view.. This function mainly takes in three variables, x, y and z where x and y are vectors defining the location along x- and y-axis. The height of the surface (z-axis) will be in the matrix z A 3D plot is a just another tool that enables the reader to compare relative magnitudes across space. In an interactive or rotating 3D plot, a user can compare relative magnitudes as easily as they would two objects if placed in front of them. Yes, the reader loses the ability to exactly map the presented data back to its numeric value Parametric Curve Grapher: 3D

### The mplot3d Toolkit — Matplotlib 3

1. Act 3 plot leak: Final battle, tragic death, and resurrection. Norman Osborn and the Sinister Six attack the Sanctum with Tom, Andrew and Strange playing defense. The fight is a pretty big one.
2. In the second calling sequence, plot3d(f, a..b, c..d), f must be a procedure or operator that takes two arguments. Operator notation must be used, that is, the procedure name is given without parameters specified, and the ranges must be given simply in the form a..b, rather than as an equation.At least one of the ranges must have arguments evaluating to real constants; the other range may have.
3. 3D Vector Plotter. An interactive plot of 3D vectors. See how two vectors are related to their resultant, difference and cross product. Maths Geometry Graph plot vector. The demo above allows you to enter up to three vectors in the form (x,y,z). Clicking the draw button will then display the vectors on the diagram (the scale of the diagram will.
4. 3d plot - Wolfram|Alpha. Have a question about using Wolfram|Alpha? Contact Pro Premium Expert Support »
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1) plot 3d points read from a file. A scatter plot would be fine. 2) Optionally color the points by a property - also read from the file . It would be terrific if this program could also compute and display the best fit plane through these points 3D Perspective Plots. Another type of graphic available to the user is the 3D Perspective Plot. The 3D plot is a 3-dimensional plot of the terrain on the computed results (Depth, water surface, velocity, etc.). The HEC-RAS 3D Viewer was developed to help engineers convey hydraulic modeling results to decision-makers

### 3-D point or line plot - MATLAB plot3 - MathWork

To make the 3D plot look better, you will need to append a surface plot. The surfaceplot wave can be generated from your triplet wave using ImageInterploate (the Voronoi method usually works for me). Use the /S flag to specify the resolution of the image generated. ImageInterpolate/S = {0, 0.05, 1, 1e-6, 5e-6, 1} Voronoi Tripletwave This article describes a 3D surface plot control that can display real time data in C# WinForms and WPF applications. The library includes a WPF configuration view, and classes to serialise the configuration to and from the registry. Adding the control to an application is very straight forward. Download demo - 91.6 KB Calculus: Integral with adjustable bounds. example. Calculus: Fundamental Theorem of Calculu I am looking for code that can plot radio waves from a dipole antenna at a given frequency in 3 dimensional space. So, instead of plotting on a surface, the plot is in space. The point of this exercise is to illustrate how an avalanche beacon transmits a signal and how the waves of this signal can affect searchers receiving a signal Easy, attractive 3D plots in WPF ¶. WPF-SurfacePlot3D is a tiny C# library containing easy-to-use 3D surface plotting components for WPF (.NET) applications. You can get started in as few as four lines

### 3d plot - WolframAlph

1. 3D Surface Plots Introduction Surface plots are diagrams of three-dimensional data. Rather than showing the individual data points, surface plots show a functional relationship between a designated dependent variable (Y), and two independent variables (X and Z). The plot is a companion plot to the contour plot
2. Screencast showing how to plot a 3D graph in Excel. Steps to plot x-y-z data, changing the position of the axis floor and adding axis titles.Presented by Dr.
3. What is 3D Scatter Plot in Excel? How to Create 3D Scatter Plot in Excel? What is 3D Scatter Plot in Excel? A scatter plot is a graph or chart used for data visualization and interpretation using dots to represent the values for two different variables- one plotted along the x-axis (horizontal axis), and the others plotted along the y-axis.
4. This page describes the Plot3d file format for writing CFD structured grids and solutions. Below are examples for reading the files using Fortran 77 code. The examples assumes the grid file has been opened to unit 7 and the solution file to unit 8. Shown are examples for 2D, formatted, single-block files and 3D, unformatted, multi-block files
5. I want to plot 3D HeatMap for 3D function f (x,y,z). For 2D function f (x,y), I know the below code works. using Plots x = 1:L # coordinate range y = 1:L F = Float64 [f (ix,iy) for ix in x, iy in y]' #convert f (x,y) to an array plot (F,st=:heatmap,color= cgrad (:blues)) plot! (xlabel=x,ylabel=y,aspect_ratio=:equal) plot! (xlims= (1,Lx.
6. Besides 3D wires, and planes, one of the most popular 3-dimensional graph types is 3D scatter plots. The idea of 3D scatter plots is that you can compare 3 characteristics of a data set instead of two. This tutorial covers how to do just that with some simple sample data. Here is the code that generates a basic 3D scatter plot that goes with.

### Math3d: Online 3d Graphing Calculato

A 2D plot can only show the relationships between a single pair of axes x-y; a 3D plot on the other hand allows us to explore relationships of 3 pairs of axes: x-y, x-z, and y-z. In this article, I'll give you an easy introduction into the world of 3D data visualisation using Matplotlib Matplotlib 3D Plot Example. If you are used to plotting with Figure and Axes notation, making 3D plots in matplotlib is almost identical to creating 2D ones. If you are not comfortable with Figure and Axes plotting notation, check out this article to help you.. Besides the standard import matplotlib.pyplot as plt, you must alsofrom mpl_toolkits.mplot3d import axes3d This calculus 3 video explains how to plot points in a 3D coordinate system. It contains a few examples and practice problems.My Website: https://www.video..

Download Interactive_3D_Surface_Plot.jar to the plugins folder, or subfolder, restart ImageJ, and there will be a new Interactive 3D Surface Plot command in the Plugins menu, or submenu. This plugin creates interactive surface plots from all image types. Selections, which can be non-rectangular, are supported Matplotlib - 3D Quiver Plot. A three-dimensional axes can be created by passing projection='3d' keyword to the axes creation routine. After creating 3D axes, matplotlib.Axes3D.quiver () function is used to make quiver plot, where X, Y, Z define the arrow locations, U, V, W define the arrow directions We can plot with this transform. Remember that the dependent variable is the height, and the independent variables are the radius and the azimuth (in that order): sage: plot3d(9-r^2, (r, 0, 3), (theta, 0, pi), transformation=T) Graphics3d Object. We next graph the function where the radius is constant

The view point in the 3-dimensional plot is controlled by set view command. The default setting is, gnuplot> show view view is 60 rot_x, 30 rot_z, 1 scale, 1 scale_z. Initially (before rotation), your screen is parallel to the X-Y plane and the Z-axis is perpendicular to that. Firstly, the X-axis is rotated to 60 degrees (rot_x), then the Z. We can create a surface plot with the same data as above. To create a 3-Dimensional surface plot, we'll use the plot_surface () method. from mpl_toolkits import mplot3d. import numpy as np. import matplotlib.pyplot as plt. fig = plt.figure () ax = plt.axes (projection='3d') def f (x, y) MathMod is a portable interactive plotting and graphing program for Windows, Linux, MacOSX and many other platforms. MathMod allows to plot 3D mathematical surfaces, described by implicit or parametric equations, and offers a very large database of model samples that can be generated with it. It's Free and Open Source Plots a ggplot2 object in 3D by mapping the color or fill aesthetic to elevation. Currently, this function does not transform lines mapped to color into 3D. If there are multiple legends/guides due to multiple aesthetics being mapped (e.g. color and shape), the package author recommends that the user pass the order of the guides manually using the ggplot2 function guides()`. Otherwise, the. The above example is identical to using: In : df.plot(subplots=True, layout=(2, -1), figsize=(6, 6), sharex=False); The required number of columns (3) is inferred from the number of series to plot and the given number of rows (2). You can pass multiple axes created beforehand as list-like via ax keyword  Basic 3D scatter plots library(car) # 3D plot with the regression plane scatter3d(x = sep.l, y = pet.l, z = sep.w) Note that, the plot can be manually rotated by holding down on the mouse or touchpad. It can be also zoomed using the scroll wheel on a mouse or pressing ctrl + using the touchpad on a PC or two fingers (up or down) on a mac Modification of scatterplot3d output. scatterplot3d returns a list of function closures which can be used to add elements on a existing plot.. The returned functions are : xyz.convert(): to convert 3D coordinates to the 2D parallel projection of the existing scatterplot3d.It can be used to add arbitrary elements, such as legend, into the plot

Surface 3D Plot Lite. Plot a 3d graph from any math function. Now you can create beautiful plots with full customization from trigonometric functions and everything in between. -Examples show up when the inputs are execute with an empty text in each modes. - Just like a graphing calculator, plug in the equation and create a 3d model of the graph There are an intimidating amount of plotting packages¶. Luckily, we have Plots.jl. Plots.jl is a plotting metapackage which brings many different plotting packages under a single API, making it easy to swap between plotting backends The 3D plot is completely red and uses only a tiny portion of available colors. Also I can't really see what it looks like towards the centre, is there a way we can solve the above problems and also make the graph look prettier. plotting color. Share. Improve this question. Follo Plot a 3D graph. After having made a grid you can plot a 3D graph using the command mesh(xx,yy,z), where xx and yy are the matrices made by meshgrid and where z is a function of x and y. You get the function values of z by using element by element operations on matrices xx and yy Plotting x and y points. The plot() function is used to draw points (markers) in a diagram.. By default, the plot() function draws a line from point to point.. The function takes parameters for specifying points in the diagram. Parameter 1 is an array containing the points on the x-axis.. Parameter 2 is an array containing the points on the y-axis.. If we need to plot a line from (1, 3) to (8.

Creation of 3D Surface Plot. To create the 3-dimensional surface plot the ax.plot_surface () function is used in matplotlib. The required syntax for this function is given below: ax.plot_surface (X, Y, Z) In the above syntax, the X and Y mainly indicate a 2D array of points x and y while Z is used to indicate the 2D array of heights 3D scatter plot in Excel v 2.0 - the manual page 5 of 13 2.1.5 Adding more data points to the List The data for the plot resides in a dedicated Excel List1.A List is not just a plain range on a worksheet, but a specifically defined and automatically dynamic range on a worksheet Matplotlib - 3D Surface plot. Surface plot shows a functional relationship between a designated dependent variable (Y), and two independent variables (X and Z). The plot is a companion plot to the contour plot. A surface plot is like a wireframe plot, but each face of the wireframe is a filled polygon. This can aid perception of the topology of. 3D surface and 3D wireframe plots are graphs that you can use to explore the potential relationship between three variables. The predictor variables are displayed on the x- and y-scales, and the response (z) variable is represented by a smooth surface (3D surface plot) or a grid (3D wireframe plot)

regplane3D. package, a tool for plotting 3D regression predictions in R. After reading this blog post and engaging with the applied examples, readers will be able to: generate the quantities of interest from regression models, including expected values over a grid of predictor values and their confidence intervals To demonstrate 3D bar plots, we will use the simple, synthetic dataset from the previous recipe as shown in the following code: import numpy as np from mpl_toolkits.mplot3d import Axes3D import matplotlib.pyplot as plt # Data generation alpha = np.linspace(1, 8, 5) t = np.linspace(0, 5, 16) T, A = np.meshgrid(t, alpha) data = np.exp(-T * (1 Plot keeps the reader turning the pages, to find out how A will lead to B. But at the end of the book, it's not the events of the plot that makes the story feel meaningful, it's the characters, and the way they've either learned and grown over the story or, tragically, failed to. This is the part that writers who start with plot often. Suicide Squad premiered in New York City on August 1, 2016, and was released in the United States in RealD 3D, IMAX, and IMAX 3D on August 5, 2016. Following a strong debut that set new box office records, the film grossed over \$746 million worldwide, making it the tenth-highest-grossing film of 2016. The film received mixed reviews from. the plot is made using the current 3D scaling (set by a previous call to param3d, plot3d, contour or plot3d1). type=1: rescales automatically 3d boxes with extreme aspect ratios, the boundaries are specified by the value of the optional argument ebox

The process of creating, customizing and analyzing striking 3-D plots with XLSTAT-3DPlot, is simple: Select a type of plot, and visualize the data in 2 or 3 dimensions in the XLSTAT-3DPlot interface. Modify the image by adjusting angles, colors and other effects until it fits your needs, Save the visualization if you need to work on it later Suppose your data to be plotted are 3-dimensinonal scattered data (x,y,z) with arbitrary order. With the splot command, gnuplot generates points or lines in a 3-dim. space. In order to generate a 3-dim. grid graph from those data, use set dgrid3d. Height of each mesh is determined automatically by a weighted average of the data inside the grid

3D and Contour Grapher. A graph in 3 dimensions is written in general: z = f(x, y).That is, the z-value is found by substituting in both an x-value and a y-value.. The first example we see below is the graph of z = sin(x) + sin(y).It's a function of x and y.. You can use the following applet to explore 3D graphs and even create your own, using variables x and y Open source API for 3d charts: Jzy3d is an open source java library that allows to easily draw 3d scientific data: surfaces, scatter plots, bar charts, and lot of other 3d primitives.The API provides support for rich interactive charts, with colorbars, tooltips and overlays 3D Surface Plots in .NET (C# and Visual Basic) are used to visualize arbitrary rectangular grids of points in 3D space. Each element in the grid gets a point in 3D space assigned. In the simplest case, only the Z coordinates of the points are defined. X and Y coordinates are added automatically in order to create an equally spaced grid of. Plot: Graph Plotting. The Plot library provides a flexible interface for producing nearly any kind of plot. It includes many common kinds of plots already, such as scatter plots, line plots, contour plots, histograms, and 3D surfaces and isosurfaces. Thanks to Racket's excellent multiple-backend drawing library, Plot can render plots as. Plotting software makes trade-offs between features and simplicity, speed and beauty, and a static and dynamic interface. Some packages make a display and never change it, while others make updates in real-time. Plots is a visualization interface and toolset. It sits above other backends, like GR, PyPlot, PGFPlotsX, or Plotly, connecting. Functions 3D Plotter is an application to drawing functions of several variables and surface in the space R3 and to calculate indefinite integrals or definite integrals. Funcions 3D plotter calculates the analytic and numerical integral and too calculates partial derivatives with respect to x and y for 2 variabled functions. Enter the interval for the variable x for variale and Plotter and 3D. Piranha 3D is a 2010 American comedy-horror film that serves as a loose remake of the comedy horror film Piranha (1978) and an entry in the Piranha film series. During spring break on Lake Victoria, a popular waterside resort, an underground tremor releases hundreds of prehistoric, carnivorous piranhas into the lake

### Three-dimensional Plotting in Python using Matplotlib

First, load the 3D Surface Plot procedure from the menu and click Reset to set all settings to their default values. Let's plot Test 1 on the X axis , Test 3 on the Y Axis , and Test 2 on the Z axis . Check the Edit During Run box to bring up the plot for interactive editing while the procedure is running. Now that the input form is filled. Tip. Mayavi is an interactive 3D plotting package. matplotlib can also do simple 3D plotting, but Mayavi relies on a more powerful engine ( VTK) and is more suited to displaying large or complex data mesh(x,y,z) zlim([-2,2]) xlabel('x'),ylabel('y'),zlabel('z') title('3D Plot Example') Multiple 3D Surfaces. This example demonstrates how to plot more than one graph on the same figure. Notice in this example we used a different way to get the domain for x,y using linspace as opposed to the above example Desmos offers best-in-class calculators, digital math activities, and curriculum to help every student love math and love learning math

### 3D Surface Plots Python Plotl

Whether it's for research, a school assignment, or a work presentation, 3-D plots are great for visualizing what a complicated set of data looks like. With the help of MATLAB (Matrix Laboratory), you'll be able to create stunning 3-D visuals with the data you provide In general, the three-dimensional plots consist of the three vectors (x,y,z) in the same graph. In MATLAB, the plot3 function is used to draw the 3D plot graph. You can also use a specified line style, marker, and color for drawing 3D plots. The general syntax to display the 3D plot is, Skip this step if you used Working with 3D Figures. Introduction. Creating 3D scatter plots. Creating 3D curve plots. Plotting a scalar field in 3D. Plotting a parametric 3D surface. Embedding 2D figures in a 3D figure. Creating a 3D bar plot shape=3|1 means 3 plots on the left and 1 on the right, shape=4/2 means 4 plots on top and 2 at the bottom. border (bool, optional) - Draw a border around each render window. Default False. border_color (string or 3 item list, optional) - Either a string, rgb list, or hex color string. For example seaborn: statistical data visualization. ¶. Seaborn is a Python data visualization library based on matplotlib. It provides a high-level interface for drawing attractive and informative statistical graphics. For a brief introduction to the ideas behind the library, you can read the introductory notes. Visit the installation page to see how you.

### Introduction to 3D Plotting with Matplotlib - GeeksforGeek

Constructs a scatter plot with the given parameters. options is an object with the following properties: gl is a WebGL context; position (Required) an array of length 3 arrays encoding the position of the points in the scatter plot. color A length 3 array encoding the color of the points in the scatter plot. To set colors per point, pass an. 3D Plots. MATLAB's 3D plotting capability is just as versatile as the 2D plots. Let's first focus on the three different types of 3D plots: Line plots - these are typically used to plot x, y, z vectors of coordinates. Patches - these are used to draw 2- or 3-D polygons of arbitrary shape Implicit Plots¶ sage.plot.plot3d.implicit_plot3d.implicit_plot3d (f, xrange, yrange, zrange, ** kwds) ¶ Plot an isosurface of a function. INPUT: f - function. xrange - a 2-tuple (x_min, x_max) or a 3-tuple (x, x_min, x_max). yrange - a 2-tuple (y_min, y_max) or a 3-tuple (y, y_min, y_max). zrange - a 2-tuple (z_min, z_max) or a 3-tuple (z, z_min, z_max). Surface plots are very useful in the context of design of experiment. What XLSTAT 3DPlot can do. XLSTAT 3DPlot enables displaying data in 3-D plots with an intuitive interface loading the data directly from Excel, simply by clicking on an icon in the XLSTAT toolbar. Available plots: Scatter plot (2- and 3-D) Bar plot (2- and 3-D) Line plot. Annotation plots, new with COMSOL Multiphysics version 5.2, can be added to 2D and 3D plot groups to create visible notes or comments in your model results. They appear within a Plot Group node in the same way as they do for any other plot: The Settings window allows you to change the annotation's details, including the position of the.     Spherical contour plot of the probability distribution of the orientation of a protein domain (regulatory light chain of myosin II) in a muscle fibre. Spherical contour plot created by two 3D parametric function plots: One is a 3D colormap surface plot and another one is a 3D surface without colormap and only shows the mesh line pandas.DataFrame.plot. ¶. Make plots of Series or DataFrame. Uses the backend specified by the option plotting.backend. By default, matplotlib is used. The object for which the method is called. Only used if data is a DataFrame. Allows plotting of one column versus another. Only used if data is a DataFrame Excel: Preparing/Categorizing data for contour plots, surface plots and 3D histograms. Coming in with a lot of (continuous numerical) data, I struggled to find a neat chart type to display it. I went for a contour plot but it needs the data sorted in rows and columns while my data consisted of 5000 rows and two columns