https://tomhopper.me/2020/04/28/r-package-numbr-0-11-3-posted/2020-04-28T14:27:50+00:00monthlyhttps://tomhopper.me/2020/01/27/time-to-upgrade/2020-01-24T19:11:59+00:00monthlyhttps://tomhopper.me/contact/2019-10-29T14:05:12+00:00weekly0.6https://tomhopper.me/2016/05/03/r-for-excel-users/2017-11-15T18:05:01+00:00monthlyhttps://tomhopper.me/2014/11/28/sample-size-matters-design-and-experiments/https://tomhopper.me/wp-content/uploads/2014/11/plot_diff_detect_prop-1.pngMinimum difference detectable in proportions by sample sizehttps://tomhopper.me/wp-content/uploads/2014/11/plot_diff_detect_sigma-1.pngMinimum difference detectable in standard deviations by sample sizehttps://tomhopper.me/wp-content/uploads/2014/11/plot_diff_detect_mean-1.pngMinimum difference to detect in means by sample size2017-10-17T20:36:48+00:00monthlyhttps://tomhopper.me/2014/11/21/sample-size-matters-uncertainty-in-measurement/https://tomhopper.me/wp-content/uploads/2014/11/plot_ppm_confint-1.pngUncertainty in ppmhttps://tomhopper.me/wp-content/uploads/2014/11/plot_cpk_confint-1.pngUncertainty in Cpkhttps://tomhopper.me/wp-content/uploads/2014/11/plot_prop_confint-1.pngUncertainty in proportionhttps://tomhopper.me/wp-content/uploads/2014/11/plot_sd_confint-1.pngUncertainty in standard deviationhttps://tomhopper.me/wp-content/uploads/2014/11/plot_mean_confint-1.pngUncertainty in mean2017-10-17T20:36:08+00:00monthlyhttps://tomhopper.me/2014/11/14/sample-size-matters/https://tomhopper.me/wp-content/uploads/2014/11/sampling_diagram_2_unknown_pop.pngSampling from unknown populationhttps://tomhopper.me/wp-content/uploads/2014/11/sampling_diagram_2_known_pop.pngSampling from known population2017-10-17T20:30:16+00:00monthlyhttps://tomhopper.me/2017/06/19/understanding-data-through-scales-of-measurement/2017-06-20T07:43:31+00:00monthlyhttps://tomhopper.me/2014/12/05/sample-size-matters-design-and-cost/https://tomhopper.me/wp-content/uploads/2014/12/eqn-s_upper-x_bar_upper-x_bar_lower.pngeqn-s_upper-x_bar_upper-x_bar_lowerhttps://tomhopper.me/wp-content/uploads/2014/12/eqn-sigma-newmu108.pngeqn-sigma-newmu108https://tomhopper.me/wp-content/uploads/2014/12/codecogseqn.pngCodeCogsEqnhttps://tomhopper.me/wp-content/uploads/2014/11/plot_mean_range-1.pngExpected range of acceptable parts2016-08-25T14:55:19+00:00monthlyhttps://tomhopper.me/community_finder/2016-04-02T19:52:41+00:00weekly0.6https://tomhopper.me/2016/01/15/update-to-plot-qcc/2016-01-12T14:56:11+00:00monthlyhttps://tomhopper.me/2016/01/02/multi-tabbed-reports-in-r-and-shiny/https://tomhopper.me/wp-content/uploads/2016/01/plot_all_states.pngplot_all_states2016-01-04T13:59:20+00:00monthlyhttps://tomhopper.me/about/2014-11-09T14:52:27+00:00weekly0.6https://tomhopper.me/2014/07/04/the-most-useful-data-plot-youve-never-used/https://tomhopper.me/wp-content/uploads/2014/06/stacked_histograms.pngStacked histogramshttps://tomhopper.me/wp-content/uploads/2014/06/points_many_data.pngPoints plot with many datahttps://tomhopper.me/wp-content/uploads/2014/06/points_many_data_alpha.pngPoints plot with many data using alpha blendinghttps://tomhopper.me/wp-content/uploads/2014/06/points_few_data.pngPoints plot with few datahttps://tomhopper.me/wp-content/uploads/2014/06/histogram.pnghistogramhttps://tomhopper.me/wp-content/uploads/2014/06/boxplots.pngStacked boxplotshttps://tomhopper.me/wp-content/uploads/2014/06/boxplots_means.pngStacked box plots with meanshttps://tomhopper.me/wp-content/uploads/2014/06/boxplot_markup_fin.pngBoxplot with markup2014-07-04T05:15:57+00:00monthlyhttps://tomhopper.me/2014/05/23/flowing-requirements-from-the-voc-or-vop/https://tomhopper.me/wp-content/uploads/2014/05/aircraft_battery_cell.gifAircraft battery cell cut-awayGeneral drawing of the structure of aircraft battery's vented type NiCd cell. Ransu. Wikipedia, [http://en.wikipedia.org/wiki/File:Aircraft_battery_cell.gif||http://en.wikipedia.org/wiki/ File:Aircraft_battery_cell.gif]. Accessed 2014-04-04.2014-05-16T13:20:15+00:00monthlyhttps://tomhopper.me/2014/05/16/can-we-do-better-than-r-squared/https://tomhopper.me/wp-content/uploads/2014/05/model_plot.pngPlot of the response and factors in a linear model.2018-10-15T18:45:13+00:00monthlyhttps://tomhopper.me/2014/04/25/combining-the-voice-of-the-customer-with-the-voice-of-the-process/https://tomhopper.me/wp-content/uploads/2014/04/twosidedspecificationcostfunction2.pngCost curves for a two-sided specificationPercent of target production costs given an average production weight and four different process capabilities.https://tomhopper.me/wp-content/uploads/2014/04/onesidedspecificationcostfunction2.pngCost curves for a one-sided specificationPercent of target production costs given an average production weight and four different process capabilities.https://tomhopper.me/wp-content/uploads/2014/04/dist_plot.pngDistribution plot for 2-sigma, one-sided processProbability density distribution showing cumulative probability below a target value of 100 shaded in red.2014-04-09T13:37:09+00:00monthlyhttps://tomhopper.me/2014/04/18/combining-expert-judgements/https://tomhopper.me/wp-content/uploads/2014/03/exp_judgements_dists.pngCombining estimation distribution from Subject Matter Experts https://tomhopper.me/wp-content/uploads/2014/03/exp_judgements_data_entry.pngSubject Matter Experts data entries for estimating a continuous variable2014-04-05T14:05:19+00:00monthlyhttps://tomhopper.me/2014/04/11/issue-logs-and-risk-registers/2014-03-31T18:30:53+00:00monthlyhttps://tomhopper.me/2014/04/04/apple-google-wage-fixing-and-systems-thinking/https://tomhopper.me/wp-content/uploads/2014/03/limits_to_growth1.pngLimits to growth in employee engagementThe classic limits to growth system archetype describes why it's hard to keep employees engaged and hold down turnover.https://tomhopper.me/wp-content/uploads/2014/03/limits_to_growth.pngLimits to growth in employee engagementThe classic limits to growth system archetype describes why it's hard to keep employees engaged and hold down turnover.https://tomhopper.me/wp-content/uploads/2014/03/shifting_burden.pngShifting the burden when "fixing" employee turnoverThe classic shifting the burden system archetype describes wage-fixing practices as solutions to employee turnover.2014-03-27T09:14:45+00:00monthlyhttps://tomhopper.me/2014/03/28/a-simple-introduction-to-the-graphing-philosophy-of-ggplot2/https://tomhopper.me/wp-content/uploads/2014/03/basic_ggplot1.pngBasic plot in ggplot2Demonstration of the key concepts in the grammar of graphics: data, geometries, aesthetic mappings and scale mappings.2014-03-27T08:19:58+00:00monthlyhttps://tomhopper.me/2014/03/21/normality-and-testing-for-normality/https://tomhopper.me/wp-content/uploads/2014/03/normal_vs_t_2.pngDensity plot of normal and t distributionshttps://tomhopper.me/wp-content/uploads/2014/03/lognormal.pngHistogram of p-values for a log-normal distributionhttps://tomhopper.me/wp-content/uploads/2014/03/lognormal_data.pngHistogram of log-normal datahttps://tomhopper.me/wp-content/uploads/2014/03/tdist.pngHistogram of p-values for a t distributionHistogram of p-values for the t distribution, for sample sizes 5, 10 and 1000.https://tomhopper.me/wp-content/uploads/2014/03/tdist_normal_tails.pngHistogram of p-values for a t distribution with normal distribution tailsHistogram of p-values for sample sizes 5, 10 and 1000, from a data set constructed from the t distribution in the range -3 to +3 sigmas, with tails from the normal distribution below -3 and above +3. https://tomhopper.me/wp-content/uploads/2014/03/normdist.pngHistogram of p-values for a normal distributionHistogram of p-values for the normal distribution, for sample sizes 5, 10 and 1000.https://tomhopper.me/wp-content/uploads/2014/03/normdist_tdist_tails.pngHistogram of p-values for a normal distribution with t distribution tailsHistogram of p-values for sample sizes 5, 10 and 1000, from a data set constructed from the normal distribution in the range -3 to +3 sigmas, with tails from the t-distribution below -3 and above +3. 2014-04-07T12:30:59+00:00monthlyhttps://tomhopper.me/2014/03/01/individuals-and-moving-range-charts-in-r/2020-05-25T16:20:29+00:00monthlyhttps://tomhopper.me/2014/03/03/rewriting-plot-qcc-using-ggplot2-and-grid/https://tomhopper.me/wp-content/uploads/2014/03/qcc_xchart_orig.pngqcc Individuals ChartThe qcc individuals chart as implemented in the qcc package.https://tomhopper.me/wp-content/uploads/2014/03/qcc_xchart_ggplot.pngqcc Individuals Chart in ggplot2The qcc individuals chart as implemented using ggplot2 and grid graphics.https://tomhopper.me/wp-content/uploads/2014/03/qcc_mrchart_orig.pngqcc Moving Range ChartThe qcc moving range chart as implemented in the qcc package.https://tomhopper.me/wp-content/uploads/2014/03/qcc_mrchart_ggplot.pngqcc Moving Range Chart in ggplot2The qcc moving range chart as implemented using ggplot2 and grid graphics.2018-06-19T14:15:10+00:00monthlyhttps://tomhopper.me/2010/05/17/you-know-youre-a-geek-when/2014-03-02T13:47:42+00:00monthlyhttps://tomhopper.me/2011/11/02/scientific-consensus/2011-11-02T15:34:32+00:00monthlyhttps://tomhopper.me/2011/09/30/and-you-thought-physics-was-yawn/2011-09-30T12:33:31+00:00monthlyhttps://tomhopper.me/2010/11/19/market-for-premium-r-packages/2010-11-20T10:17:20+00:00monthlyhttps://tomhopper.me/2010/09/15/r-function-reference/https://tomhopper.me/wp-content/uploads/2010/09/r-function-ref-screenshot.pngR Function Reference screenshotThe top-level nodes of the R Function Reference2010-09-17T12:00:29+00:00monthlyhttps://tomhopper.me/2010/08/30/graphing-highly-skewed-data/https://tomhopper.me/wp-content/uploads/2010/08/dot-plot-small-multiples-plot.pngDot Plot Using Small MultiplesThe full data, with outliers, is plotted on the left. On the right, a zoomed view showing detail in the smaller values.https://tomhopper.me/wp-content/uploads/2010/08/dot-plot-with-full-panel-break1.pngDot plot with full scale breakDot plot with a full scale break to show outliers.https://tomhopper.me/wp-content/uploads/2010/08/dot-plot-log-scale1.pngDot plot with logarithmic scaleSkewed data is plotted on a dot plot using a logarithmic scale.https://tomhopper.me/wp-content/uploads/2010/08/bar-chart-logarithmic-axis.pngBar Chart with Logarithmic AxisBar chart plotting skewed with logarithmic axis.https://tomhopper.me/wp-content/uploads/2010/08/bar-chart-natural-axis1.pngBar chart plotting all data on same scaleA bar chart with all data, including outliers, plotted on the same scale.https://tomhopper.me/wp-content/uploads/2010/08/bar-chart-natural-axis-split1.pngBar chart with a subtle scale breakBar chart with outliers plotted by introducing a subtle scale break on the y-axis.https://tomhopper.me/wp-content/uploads/2010/08/bar-chart-natural-axis-secondary-axis1.pngBar Chart with Outliers on Secondary AxisBar chart, with outliers plotted using a secondary axis.2017-06-21T12:33:55+00:00monthlyhttps://tomhopper.me/2010/09/04/process-stability/2010-09-07T12:47:58+00:00monthlyhttps://tomhopper.me/2009/04/10/team-size-and-organizational-structure-part-1/2009-04-10T13:44:41+00:00monthlyhttps://tomhopper.me/2009/03/11/definitions/2009-03-16T18:14:56+00:00monthlyhttps://tomhopper.me/2009/02/16/successful-labs/2009-02-21T03:23:47+00:00monthlyhttps://tomhopper.me/2008/09/30/beginning-to-end/https://tomhopper.me/wp-content/uploads/2007/11/pd-as-customer-focused-process-2.pngProduct Development as Customer-Focused Processhttps://tomhopper.me/wp-content/uploads/2007/11/pd-as-customer-process-cust-persp.pngProduct Development as Customer-Focused Process, From the Customer's Perspective2008-09-30T13:21:00+00:00monthlyhttps://tomhopper.me/2008/06/18/the-value-of-standard-work/2008-06-18T15:07:59+00:00monthlyhttps://tomhopper.me/2008/01/12/a-bit-about-how-people-and-teams-learn/2008-03-17T06:04:45+00:00monthlyhttps://tomhopper.me/2007/12/29/waste-in-tps-vs-lean-pd/2007-12-29T13:34:48+00:00monthlyhttps://tomhopper.me/2007/11/04/developing-products-is-about-learning/2007-11-07T16:18:45+00:00monthlyhttps://tomhopper.me/2007/07/16/innumeracy/https://tomhopper.me/wp-content/uploads/2007/07/corporate-taxes-and-revenue-2004-graph2.gifCorporate Taxes and Revenue, 2004, with Lowess curvehttps://tomhopper.me/wp-content/uploads/2007/07/corporate-taxes-and-revenue-2004-graph1.gifCorporate Taxes and Revenue, 2004, data onlyhttps://tomhopper.me/wp-content/uploads/2007/07/ed-ag112_1corpt_20070712182433.gifCorporate Taxes and Revenue, 20042007-07-16T23:56:28+00:00monthlyhttps://tomhopper.me/2007/06/24/7/https://tomhopper.me/wp-content/uploads/2007/06/whiteboard-clean.jpgWhiteboard for warranty tracking2010-06-23T17:09:57+00:00monthlyhttps://tomhopper.me/2007/06/01/getting-started/2007-06-01T12:06:45+00:00monthlyhttps://tomhopper.medaily1.02020-05-25T16:20:29+00:00