GraphPad Prism 11.1.0 — Mac version

Multiple comparisons in a three-way ANOVA. Once you reach that point, the tick-box statistics packages start to feel like children's scissors. What gets less attention is how the analysis dialogs have been rethought. Variable selection for t tests, multifactor ANOVA and nonlinear regression is now a single clean panel instead of a warren of drop-downs — less hunting, fewer mistakes. For the working scientist, that quiet tidy-up matters more than any headline feature.

• New graph types for multiple variables tables. Bars, box-and-whisker and violin plots drawn directly from the data structure you already use, without transposing or reshaping.
• Categorical level ordering. Drag rows in a multiple variables table to control the order they appear on the graph. Simple, and long overdue.
• Streamlined variable selection. The same sensible redesign across t tests, ANOVA, nonlinear regression and simple survival analysis dialogs.
• Curve-fitting tools an experienced user leans on. Compare nested models, set confidence intervals for parameters, and let the automatic outlier detection flag points that don't belong to your model.
• Graphs that hold up under scrutiny. Every axis break, every pairwise comparison bracket, every floating note is built for a journal figure, not a dashboard widget.

Version 11.1 doesn't rip up what you knew. It fixes the small frustrations that accumulate when you use a tool daily. If you've been running the same analyses for years, the new dialogs and graph types will save you a surprising number of clicks each week.

Turn off the auto-hiding Navigator panel

Out of the box, Prism makes a few assumptions about how you work. A handful of tweaks in the Preferences window will make it feel more like yours.

Turn off the Navigator panel auto-hide. On a laptop screen it steals horizontal space, but on any monitor larger than 13 inches, keeping it pinned open saves constant expanding and collapsing. Find it under View → Navigator and uncheck "Automatically hide." While you're there, drag the divider to show full data table names — truncated labels are a headache when you have twelve "Sheet 1" copies.

Set your default graph font. Prism ships with a sans-serif that looks fine on screen but draws puzzled looks from journal reviewers who expect serif axis labels. Go to Prism → Preferences → Graph and set the default font to something your target journal actually accepts. The same dialog lets you fix the default colour palette. If you regularly print in greyscale or submit to journals that charge for colour figures, switch to a monochrome palette now and avoid re-colouring fifty graphs later.

Change the paste behaviour for data. Prism defaults to pasting values only, which strips formatting. If you copy-paste from Excel frequently, open Preferences → Data and check "Paste with formatting" so column headings and number formats come across intact.

Tell Prism which statistical approach you live in. Under Preferences → Analysis, you can set your default multiple comparisons test and P-value style. If your lab reports exact P-values rather than asterisk brackets, set it once here rather than adjusting every analysis dialog manually.

Paste data blocks straight from Excel or Numbers

Prism files are self-contained, but real lab work rarely is. A few connections make the difference between a tool you launch and a tool that fits into your day.

Copy-paste from Excel and Numbers works directly. Select a block of cells, copy, click into a Prism data table and paste. Prism guesses the data structure — XY, grouped, or column — based on the shape of what you pasted. If it guesses wrong, Edit → Paste Special lets you override. The paste preview panel shows what Prism thinks it's getting before you commit, which catches transposed rows more often than you'd expect.

Export graphs as vector files. Drag a graph to the Finder and you get a PDF. Use File → Export and you can pick EPS or SVG. Those formats drop straight into Illustrator or Inkscape for final layout tweaks without rasterising your error bars into fuzzy blocks. If your collaborator works in PowerPoint on Windows, EMF format keeps everything crisp on that side too.

AppleScript hooks exist, but they're modest. Prism's AppleScript dictionary covers opening files, exporting graphs, and running analyses by name. It's not scriptable enough to build a full pipeline, but a three-line script that exports every graph from a project as a dated PDF saves ten minutes of manual exporting before a lab meeting.

Spotlight finds Prism files reliably. The .pzfx and .pzf formats are indexed, so you can search by experiment name or even by text inside data table notes. Tag your project files with coloured Finder tags for active, submitted, and archived work — Prism respects them in the Open dialog.

Take advantage of macOS text replacement. If you type the same statistical reporting phrases repeatedly — "Data were analysed by two-way ANOVA with Tukey's multiple comparisons test" — set up a text shortcut in System Settings → Keyboard → Text Replacements. Prism's text fields in graph annotations and results sheets respect these system-wide shortcuts without any extra setup.

Double-click an axis to format it directly

Prism rewards the kind of user who pokes around in menus. A few things that took me too long to notice:

Double-click an axis to jump to its format dialog. It sounds obvious, but plenty of people right-click and hunt through the context menu instead. Double-clicking works on graph titles, axis labels, and legend text too.

Hold Option while dragging a graph object to duplicate it. Need the same floating annotation on three graphs? Option-drag it, release, repeat. Much faster than copy-paste or re-creating it each time.

The results sheet search bar is more powerful than it looks. Type a parameter name — "R squared" or "EC50" — and it filters every analysis result in the project, not just the current sheet. When you need to compare goodness-of-fit across twelve experiments without scrolling, this is the shortcut that makes it painless.

Right-click any graph symbol and choose "Format This Point" to style a single data point differently. Useful for highlighting an outlier or drawing attention to a particular condition without cluttering the legend.

Command-Shift-N creates a new family of sheets. A family groups a data table, its analysis results, and its graphs together. If you've been manually organising sheets into folders, this shortcut does it in one step and keeps related sheets visually linked in the Navigator.

Magnifying glass in the graph preview. When you're in a parameters dialog for curve fitting and a small thumbnail graph appears, click the magnifying glass icon to pop it out at a readable size. You can check that your model actually fits before you commit to running it on 96 wells.

A worked workflow: dose-response curve from plate reader data

Here's a realistic task — turning raw absorbance readings from a 96-well plate into an IC50 curve with confidence intervals — using Prism the way an experienced user would.

1. Get the data in cleanly. Your plate reader spits out a CSV. Open it in Excel or Numbers, delete the empty rows and any plate-layout headers, leaving just a grid of numbers. Copy the block. In Prism, create a new XY table and choose the "Enter and plot a single Y value for each point" option. Paste. If the columns are rows and vice versa, undo and use Edit → Paste Special → Transpose.

2. Annotate as you go. Rename the data table something useful — "HEK293_Compound3_2025-03-12" — before you do anything else. In the column titles, replace "X" with "Log[Compound] (M)" and the Y column with "Absorbance (450 nm)". These labels flow through to the graph automatically, so you're not retyping them

• New graph types for multiple variables tables — bars, box-and-whisker plots and violin plots
• Categorical level ordering for multiple variables data tables
• Streamlined variable selection in analysis dialogs

• macOS 11 or later
• Apple Silicon or Intel 64-bit Mac